Impossible Vanishing Sliding Bolt Trick

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dk builds

dk builds

4 жыл бұрын

This bolt slides back and forth through this block of wood, but vanishes in the middle. How is this possible??
In this video I show how I created this trick. I personally haven't seen this done anywhere before and I came up with this idea on my own, though I doubt I'm the first to ever make such a thing.
This is my second attempt making this trick, and I definitely have not perfected it. Here are some improvements I would recommend if you try to build this yourself:
1. Pre-drill a very small hole through the center of the block to help with alignment issues later on.
2. Do not pre-drill the entire large hole, as there may be chip-out issues when routing out the channel around the hole if you get too close (that is why I didn't pre-drill on this one).
3. Drill the channel so the bolt is directed across the grain, as I did with this one. My first prototype had the bolt aligned with the grain, and this lead to chipout issues where the bolt enters and exits the block.
4. Use whatever string you have that has the least flex to it. When the string is elastic, the bolt movement through the block doesn't look realistic.
Please let me know in the comments below how you might improve this, I'm sure there are a ton of ways! Maybe I will incorporate your suggestions into a future video where I build a better version of this.
Thanks for watching!
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#dkbuilds #woodworking #magic

Пікірлер: 283
@dkbuilds
@dkbuilds 4 жыл бұрын
Thanks for watching! If you have any ideas on how to improve this thing, I'd love to hear them. Leave a comment below, and don't forget to like and subscribe if you enjoyed this video!
@andrewsparkes6115
@andrewsparkes6115 3 жыл бұрын
You should find a way to make it work when PUSHED as well as pulled? Just using the same frame idea (as in the arch over the hole, inside the block's internals), but using a more rigid piece of flexible metal, meaning it will more reliably push out the bolt on the other side? Just a strong enough, 'precisely calculated' (well, enough to match the arch's rounded 'length' anyway) strip of bendy metal should work.
@bobh3300
@bobh3300 3 жыл бұрын
@@andrewsparkes6115 I was thinking springs to push each end of the bolt outward.
@andrewsparkes6115
@andrewsparkes6115 3 жыл бұрын
@@bobh3300 Well yes, that is effectively what I meant. But an uncoiled, flexible piece of bent metal would likely work better as it'd be less 'springy' in visual appearance.
@peterdavis9403
@peterdavis9403 3 жыл бұрын
Weld/glue a solid half-rectangle and increase the internal area cut out to fit. It will not have any play. Also as others suggested, split the wood. __|````o````|___
@davidpaulsen1510
@davidpaulsen1510 3 жыл бұрын
Bend a U in the middle of the bolt around the hole.
@KenWatrous
@KenWatrous 3 жыл бұрын
I'd replace the rope with a welded metal loop. Extend the slot inside enough to let the loop slide further. Bolt will then feel real if you hand it to unknowing observer.
@smoll.miniatures
@smoll.miniatures 3 жыл бұрын
I would use a length of rubber hose.. that way it could turn also....
@suit1337
@suit1337 3 жыл бұрын
@@smoll.miniatures or use a bidirectional flexible shaft or multple cardan joints
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a good idea! Thanks for sharing Ken!
@sniperblast
@sniperblast 3 жыл бұрын
@@dkbuilds Or pack the channel with magnetic ball bearings.
@RandiRain
@RandiRain 3 жыл бұрын
@@smoll.miniatures I was thinking what Michael said, but instead use a spring... but a rubber tube would work.
@Hatchmade
@Hatchmade 4 жыл бұрын
Cool idea. The only thing I would change would be to split the board instead of cut it. That way the glue seam would be less visible.
@dkbuilds
@dkbuilds 4 жыл бұрын
Good idea, Hatch! I'll try that next time. Should work well especially if the wood has a nice straight grain.
@meangreen7389
@meangreen7389 3 жыл бұрын
Hatchmadeit - I like your idea. Splitting a longer 2x4 and cutting a smaller section would hide (cut off) the mark made where the wood was split.
@mmealler
@mmealler 3 жыл бұрын
@@dkbuilds or just make a trim around the edge.
@CaptZenPetabyte
@CaptZenPetabyte Жыл бұрын
Why not add some edge-banding?
@kengeohegan2834
@kengeohegan2834 3 жыл бұрын
One of the things I noticed that gives away the trick is that one "end" of the bolt can wobble in the hole without the other side wobbling. Perhaps having them inside sleeves (metal, plastic) would provide a tighter fit and stop the wobble.
@meauxjeaux431
@meauxjeaux431 3 жыл бұрын
Yep, I noticed that right away also.
@jimpeschke3435
@jimpeschke3435 3 жыл бұрын
The more obvious giveaway is that pushing doesn't push the other end. It only works for pulling.
@dkbuilds
@dkbuilds 3 жыл бұрын
Very good point Ken, maybe I'll try that if I ever build another version of this. Thanks for sharing!
@Vinterfrid
@Vinterfrid Жыл бұрын
Strange - I cannot see it wobble at all.
@fuckthepoliceagain
@fuckthepoliceagain 4 жыл бұрын
I like that you added the pipe interior! Looks nice!
@dkbuilds
@dkbuilds 4 жыл бұрын
Thanks! That was a purely last minute scramble to fix the tearout inside the hole... but I agree, it came out looking nice!
@donireland6218
@donireland6218 3 жыл бұрын
Besides 'looking nice' think it actually adds to the illusion.
@samuelmellars7855
@samuelmellars7855 3 жыл бұрын
Drill the center hole first! Then lay everything out around it.
@dkbuilds
@dkbuilds 3 жыл бұрын
Good idea Sam!
@dj6769
@dj6769 3 жыл бұрын
Good save with the aluminum sleeve, traits of a true craftsman which appears to becoming extinct. I consider myself a craftsman I’ve had to dig myself out of many dilemmas👍
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks so much DJ! I've heard a master craftsman isn't always one with the most building skills, but rather one who can hide his/her mistakes best 😅
@rchydrozz751
@rchydrozz751 3 жыл бұрын
The better trick. Would be use a small flex cable attacked to both pieces. Like I use in my RC hobbies. Along with a small bent stuffing tube it runs through. So when you turn the bolt, the other ends turns.
@jakefriesenjake
@jakefriesenjake 3 жыл бұрын
That's what I thought he was going to do....
@adirondacker007
@adirondacker007 3 жыл бұрын
I concur. Drill bolt ends, epoxy the cable in. Done.
@dkbuilds
@dkbuilds 3 жыл бұрын
Ah that's a good idea! Thanks for sharing Rc!
@kevinogracia1615
@kevinogracia1615 Жыл бұрын
Clever idea!
@dkbuilds
@dkbuilds Жыл бұрын
Thanks Kevino!
@highdownmartin
@highdownmartin 3 жыл бұрын
Could have a u shaped linkage overthe hole with a spur gear train on each vertical leg and a layshaft across the top. You could then push and pull from either end and also turn either end and get coresponding rotary movement at the other. You’d have to keep back lash to a minimum though. An interesting idea though
@Eidolon1andOnly
@Eidolon1andOnly 3 жыл бұрын
I bet something as simple as a rubber hose could accomplish the same thing. Be rigid enough to push and pull on one end and be able to twist.
@dkbuilds
@dkbuilds 3 жыл бұрын
Wow that's a cool idea. I like the gear train concept. Thanks for sharing highdownmartin!
@my3dviews
@my3dviews 3 жыл бұрын
Just don't push or try turning the bolt. LOL
@dkbuilds
@dkbuilds 3 жыл бұрын
Lol good point My3d!
@Yonatan24
@Yonatan24 3 жыл бұрын
Nice, very interesting idea.
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you, Yonatan!
@monopinion8799
@monopinion8799 3 жыл бұрын
Wonderful job!
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you Sylvie!
@squorsh
@squorsh 3 жыл бұрын
Well it looks like the KZfaq algorithm decided that your video is popular now. Awesome build
@dkbuilds
@dkbuilds 3 жыл бұрын
Yeah the algorithm seems to have randomly picked it up after over a year haha. Thanks for watching squorsh!
@christianafey
@christianafey 3 жыл бұрын
4:19 - "This has never happened to me" ~ Said no woodworker, ever
@dkbuilds
@dkbuilds 3 жыл бұрын
😂
@Its_just_Dave.
@Its_just_Dave. 3 жыл бұрын
Cut the hole first then this wouldn’t have happened.
@chapelchicks8851
@chapelchicks8851 3 жыл бұрын
Thumbs up for your fist in frustration, felt your pain man. Excellent recovery... Great build :)
@dkbuilds
@dkbuilds 3 жыл бұрын
Haha thank you CC!
@dewfall56
@dewfall56 3 жыл бұрын
That’s called serendipity. It turned better in the end than the original idea.
@blackwood786
@blackwood786 3 жыл бұрын
hy
@blackwood786
@blackwood786 3 жыл бұрын
@@dewfall56 hy
@Jasman35
@Jasman35 3 жыл бұрын
I thought it was a bit bland but seeing "asking for improvements" and seeing suggestions in the comments won me for like and sub... love to see the improvements
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you Jasman! I am always trying to improve my skills and my builds. Welcome to my channel!
@andrewhaines8603
@andrewhaines8603 3 жыл бұрын
Perhaps use a big nail instead of a bolt then there isn't the compulsion to try and turn the bolt. Drill the holes so it just fits the nail, then link it with a metal rod, soldered, brazed or welded to complete the link. As someone else said, split rather than cut the block of wood to disguise the join then sand well when glued together again. Could be a good illusion if executed well.
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a very good idea, thanks Andrew!
@pathardage1880
@pathardage1880 3 жыл бұрын
Love it. Thank you.
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you Pat! I appreciate the encouragement!
@wizardofodds8239
@wizardofodds8239 3 жыл бұрын
I can hear the wife. "What are you doing all night in the basement??"
@dkbuilds
@dkbuilds 3 жыл бұрын
Lol! If you build one let me know how it turns out Musical!
@stevenstewart3414
@stevenstewart3414 3 жыл бұрын
Clever! ((And clever fix with the pipe too!)
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks so much Steven! Glad you enjoyed it!
@hikerbro3870
@hikerbro3870 3 жыл бұрын
I wonder if you used a spring to join the two halves if you could push and pull the bolt from the same end? Turns of the spring might feel like the threads of the bolt. Neat project.
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a cool idea! Thanks for sharing HIker
@95Gabe
@95Gabe 2 жыл бұрын
Use a larger piece of wood with nice straight grain. Instead of cutting with a saw, split it lengthwise with a chisel till it splits in the middle. Do your working inside and glue shut. Saw to final dimension to remove chisel marks and sand. That should give you a near-invisible seam. Other suggestions below would help with the illusion regarding bolt wobble and movement. Great instruction video, many thanks.
@dkbuilds
@dkbuilds 2 жыл бұрын
That's a great idea, thanks for sharing Gabe!
@palco22
@palco22 3 жыл бұрын
Like many commented: One long bolt bent up, over, down and out the other end with the inside hollowed out to allow sufficient movement......oh and frankly, drill a smaller hole in the center........the metal tube raises questions ! Masking the wood joints would require some genius work but I'm sure the expert wood working community could answer the call. Enjoyed the video.......I love these little knick knack projects !
@suit1337
@suit1337 3 жыл бұрын
masking the wood joint is easy if you use a different type of wood or different grain orientation - you could spit the wood alone the grain and reglue it without noticing - or just use multiplex or any other type of plywood, this will do the trick. the deluxe version would be a machined metal piece - brass for example and soldered back together with an invisible joint
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks for the ideas, Philippe! I appreciate you sharing them in a constructive and kind way. Lots of negative comments on this one! Thanks for watching, I'm glad you enjoyed it!
@palco22
@palco22 3 жыл бұрын
@@dkbuilds Just invite the negative commenters to make a video of their genius work then we'll judge them ! Don't waste time on them.....keep up the great videos, everyone else enjoys them !
@thirdopinion8708
@thirdopinion8708 3 жыл бұрын
How about replacing the bolt with a tea spoon or screw driver of something. The bolt makes us all want to twist it. The idea rocks! I enjoyed the video!
@dkbuilds
@dkbuilds 3 жыл бұрын
Very good point third, I never thought about that. Maybe I'll try a different object if I build this again. Thanks for watching, I'm glad you liked it!!
@DonsWoodies
@DonsWoodies 4 жыл бұрын
Hmmm. Maybe a square channel and wire holding the two pieces of bolt. That way it may be possible to both push and pull the bolt pieces. I haven't thought it thru yet, so not sure if I'm on to something. Gotta think about it. Neat trick.
@dkbuilds
@dkbuilds 4 жыл бұрын
Thanks for the comment, Don! Yeah I'm trying to think of ways where both push and pull are possible. If I had a welder I'd just create a long bolt shaped like --__-- and make a square channel like you suggest. Maybe epoxy would work instead of welding...
@DonsWoodies
@DonsWoodies 4 жыл бұрын
Dave, epoxy would probably work fine. Or, you could make the square connector out of some hard wood and use tiny dovetails for the joints and epoxy to connect the bolt pieces to the wood. :-) Hey, I'm here to make work for you......
@MGScarlet
@MGScarlet 3 жыл бұрын
That's the ticket! Square channel, with a U shaped 'connector. If the bolt is linked to the connector with a 'loose' attachment of some kind (tiny cotter pins?) then the bolt head and end could rotate yet still push/pull each other. The real trick would be to make the rotation occur at both ends simultaneously to complete the illusion. Some mechanical genius above my pay grade will have to figure out that challenge! :)
@adamozmin8970
@adamozmin8970 3 жыл бұрын
I love it. The only thing I might change is using a nail instead of a bolt. Using a lot invites twisting and when the other side doesn’t twist it breaks the illusion
@dkbuilds
@dkbuilds 3 жыл бұрын
Yeah that's a very good point, I didn't consider a users natural inclination to twist a bolt. I'll try a nail or something else next time!
@arburo1
@arburo1 3 жыл бұрын
You can't push one end, only pull it. You need to improve the internal mechanism to make it a pull and push trick. It requires an internal linkage, rather than a piece of string.
@frenchyroastify
@frenchyroastify 3 жыл бұрын
just arch a piece of metal over the hole. There's lots of room to remove material.
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks for the advice arburo! How would you make the linkage?
@arburo1
@arburo1 3 жыл бұрын
@@dkbuilds 1. Just as stated by Patrice above. 2. Bowden cable. 3. A pair of centrally pivoted links with their opposite ends connected by a link.
@gideonsnowdon6913
@gideonsnowdon6913 4 жыл бұрын
That cool but can you make to bolts push? With with longer bolt that you bend around the hole.
@nigel4425
@nigel4425 3 жыл бұрын
a piece of coat hanger wire bent in a [ shape should do the trick. - a project for the weekend I think.
@jamartin1
@jamartin1 3 жыл бұрын
Nice!💜
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you Jason!
@jimmycroce9902
@jimmycroce9902 3 жыл бұрын
Thank You so much for the entertainment. God Bless!
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you for watching and commenting, Jimmy!
@lostbuffalo196
@lostbuffalo196 8 ай бұрын
Nice job...............Good save on hole repair !!!!
@dkbuilds
@dkbuilds 7 ай бұрын
Thanks, Buffalo!
@Crafter0323
@Crafter0323 4 жыл бұрын
If you use a piece of tape Measure you can pull or push the bolt
@WagonLoads
@WagonLoads 3 жыл бұрын
Great idea.. Now make it so that when you turn the screw, it turns at the other end.. There might be a better way, but here's a start. Step 1. Drill the BIG hole through the center first. Step 2. Then split the two halves apart. Step 3. Cut a rectangle slot around the BIG hole. Make the rectangle so it is a thin groove above and below the hole and wide at each end in the direction the bolt moves. Step 4. Get a piece of metal bent into a rectangle that is shorter than the groove so it moves inside the cutout groove. Step 5. Cut a plastic staw to the length of the rectangle and tape or glue it down along the long sides of the rectangle. Step 6. Drill a hole in the center of the short side of the metal big enough for the bolt to go through, then attach the nuts to each end of the metal rectangle over the holes and screw the bolts into the nuts 10 turns. Step 7. get a long piece of string and glue it to the first bolt and wait for it to dry. Step 8. after dry, wrap the string around the bolt about 10 times clockwise. Step 9. loop it around the top of the rectangle and feed it through the straw to the other bolt and wrap it 10 times. Step 10. loop it around the bottom of the rectangle and feed it through the first bolt and wrap it clockwise 10 more times. Try not to cover the first wrap of string. Now glue the end of the 10th loop to the bolt.
@dkbuilds
@dkbuilds 3 жыл бұрын
Ooh, that's an interest idea. It sounds like it'll definitely work better than my method. Thanks for sharing, I might give it a go!
@garyfairbrother5532
@garyfairbrother5532 3 жыл бұрын
Is that a “King’s Fine Woodworking” mallet I see you using to set the pipe in the block???
@dkbuilds
@dkbuilds 3 жыл бұрын
Actually I made this mallet myself. I haven't heard of King's Fine Woodworking, but I'll go check it out now!
@roberthunt1540
@roberthunt1540 3 жыл бұрын
2:50 Every pair of scissors in my house.
@dkbuilds
@dkbuilds 3 жыл бұрын
😝
@suit1337
@suit1337 3 жыл бұрын
Amazing - i'll guess i build one myself, but i have an idea for improvement 1) use multiplex instead of solid wood, you you can mask the fact, that you cut it in half and glued it back together, it looks 2) instead of a piece of twine use a piece of u bracket or a solid wire (coat hanger) for example - so you can push and pull it from both sides without "delay" or yanking it 3) add a bit of thickness to the material so you can make it possible for the u-shape mentioned in #2 to rotate/turn the bolt (not freely (360°) but if done properly you can make it turn by lets say 75° if and have still enough material left to stabilize the center pice without showing
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you for the ideas suit! I might try some of those if I build another version!
@robertsoncletokoerner7012
@robertsoncletokoerner7012 5 ай бұрын
Parabéns, belo trabalho, obrigado. Robertson (Brasil)
@dkbuilds
@dkbuilds 4 ай бұрын
Muito obrigado!
@zaster0ne
@zaster0ne 3 жыл бұрын
love it
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you zaster!
@rickcimino5483
@rickcimino5483 3 жыл бұрын
liked and subed based on showing the error! Cool project
@dkbuilds
@dkbuilds 3 жыл бұрын
Awesome thank you Rick!! Welcome to my channel!
@majidbapukureshi8871
@majidbapukureshi8871 Жыл бұрын
Super excellent
@dkbuilds
@dkbuilds Жыл бұрын
Thanks so much MK!
@majidbapukureshi8871
@majidbapukureshi8871 Жыл бұрын
@@dkbuilds good work
@dewfall56
@dewfall56 3 жыл бұрын
I was thinking you might use a flexible cable, like the old speedometer cables, to connect the two ends of the bolt. That way you could not only push and pull, but also turn one side and the other side would turn the same. Not sure if a cable is flexible enough to make that curve and still turn though, and it might require welding the two bolt ends to the cable.
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank for the idea dewfall, I think that would work better than this!
@capodad2u
@capodad2u 3 жыл бұрын
You just need a longer bolt bent into U shape more hollow wood to allow movement. Or just use neodymium magnets on each end of bolt.
@daniel1970ification
@daniel1970ification 3 жыл бұрын
Weld a U in place.
@dkbuilds
@dkbuilds 3 жыл бұрын
Ooh no one recommended magnets before, that's interesting! Thanks for sharing capo!
@Panthror
@Panthror 3 жыл бұрын
Maybe use a spring instead of the wire, that way you'll be able to also push it which will help sell the illusion even better. You can screw the ends of the bolt into the spring eliminating the nuts and this also allows for a narrower channel so it doesn't wobble as much.
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a good idea, Panthror! Thanks for sharing, I might try that next time!
@ladamyre1
@ladamyre1 3 жыл бұрын
Install nuts on the outer edges with grooves behind them to allow 1/2" of travel in and out. then weld a strong spring on the inside ends of the bolts to travel through a groove in the wood block: this time make a jig to cut that groove. Glue the block back together and drill your hole in the middle, well clear of the groove. Make it look like the block was never cut by splitting the wood with a knife, then dressing the ends afterwards. Cut your groove, epoxy the nuts in their places with the bolt/spring assembly in them and glue the whole thing back together. This way you turn the screw and it goes back and forth. Also make the hole for the bolt threads tight and make sure it is aligned well with the other end.
@dkbuilds
@dkbuilds 3 жыл бұрын
Wow interesting idea, thanks for sharing ladmyre! I like your idea of a jig to cut the groove too.
@Super241946
@Super241946 3 жыл бұрын
Neat!
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks Super!
@whatyousaidbud
@whatyousaidbud 3 жыл бұрын
You need to put a spring on both bolts between the nut on the inside and the inside of the wood so that when you pull and release one 'end' of the bolt, the spring on the one not being pulled will push it back into place making it appear more convincing!
@dkbuilds
@dkbuilds 3 жыл бұрын
Ooh a spring is an interesting idea. Thanks for the idea, reckon!
@stephenrobbins2931
@stephenrobbins2931 3 жыл бұрын
You have play in the bolt that gives away the fact it is not one piece. That could be fixed by actually taking a longer piece of threaded rod and bending it round the hole as someone else has said, you would need to hollow out the wood to allow it to move back and forth. However the bolt cannot turn which is a great shame, as it should do so, and indeed if anyone can think of a way of making it that really would be an impressive illusion. I think I would choose a flat object instead (like a table knife) which goes into a slot in the block, but you would then need to weld a semi circle of metal to its two parts to be hidden inside the wood.
@dkbuilds
@dkbuilds 3 жыл бұрын
Very good point, nice observation Stephen. Thanks for the suggestion on how to improve it!
@Offshoreorganbuilder
@Offshoreorganbuilder 2 жыл бұрын
Cute!
@dkbuilds
@dkbuilds 2 жыл бұрын
😇
@brettjohanyak672
@brettjohanyak672 3 жыл бұрын
I knew what was going to happen before I even watched this..but still good content kool video
@dkbuilds
@dkbuilds 3 жыл бұрын
Glad you liked it Brett!
@NotesFromKrautland
@NotesFromKrautland 2 жыл бұрын
How to improve it? Give the bolts a proper bearing so they don't tilt and connect them with a wire. There's so much space, no need for a string.
@dkbuilds
@dkbuilds 2 жыл бұрын
Good tip, thanks Notes!
@robh063
@robh063 3 жыл бұрын
Most people would turn the bolt and discover the other side doesn't turn before they would pull on it.
@dkbuilds
@dkbuilds 3 жыл бұрын
Yeah that may be true. Do you have a recommended solution to fix that?
@robh063
@robh063 3 жыл бұрын
@@dkbuilds I would try a 20D 4" nail or bigger if they make them. Anything without threads might work.
@sjv6598
@sjv6598 4 жыл бұрын
Drill the hole through the middle first? ? 🙂
@dkbuilds
@dkbuilds 4 жыл бұрын
That's what I did on my first prototype actually... but then when I was trying to route out the channel around it, I broke the wall of the hole even though I was a full 1/4" away from it. I was hoping to drill at the end so there's more support to prevent chipout while routing, but then I missed the mark :(
@craftsmanwoodturner
@craftsmanwoodturner 3 жыл бұрын
@@dkbuilds Try drilling a very small hole right through the centre (before routing out the channel) - then use that hole as the centre for the Forstner bit, to guarantee accuracy.
@Eidolon1andOnly
@Eidolon1andOnly 3 жыл бұрын
Wouldn't it be better to use a rigid wire instead of twine? That way you could both push and pull on only one end.
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a good idea, thanks for sharing Sans!
@Knasterman
@Knasterman 3 жыл бұрын
nice nice .....
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you Knasterman!
@antman674
@antman674 3 жыл бұрын
Why not drill the center hole first? You could use a stiff wire instead of string to push and pull the bolt. Or better, solder a piece of sheet metal cut to shape. A keyway could help keep the ends aligned.
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a good point Ant. I didn't drill the hole first because I was worried I would blow through it when routing out the groove on the inside. In retrospect I could have drilled it first... might try that next time. Thanks for sharing!
@samrowe2889
@samrowe2889 3 жыл бұрын
So sharpin my chisels b4 I do this and let's see what else nope its perfect time to go replicate it
@dkbuilds
@dkbuilds 3 жыл бұрын
Good luck, if you replicate it let me know how it turns out Sam!
@TheButlerNZ
@TheButlerNZ 3 жыл бұрын
OK.. My Idea to improve this... but not as simple... Clip ring to stop bolts exiting either end. 2 trains of an odd number of gears meshed top to top of the bolts, and bottom to bottom. Pulling left bolt rotates 1st and last top gear anti clockwise, and bottom 1st and last clockwise. Result is right bolt driven out by right top and bottom gears... (Same thing when pushed back in)... BUT... Rotating the left bolt (say anti clockwise undo) should rotate the top and bottom left and right gears anti clockwise... but this would just bind up... So this is where the hard part comes in... Drill the end of the bolts and add a dual direction wound piece of cable soldiered in the hole like your piece of string. (bike brake wire is wound in one direction,.. you need something with a 2nd winding in the opposite direction otherwise turning in one direction will spread the wire ) the wire "Should" rotate the other bolt overcoming the binding... If that fails you could try a different approach... (which I think is actually the easiest.. but harder to find parts... 3D printer???? mill the end of the bolts to a thin axle. Jam a longitudinal spline gear on each, make a channel of these gears with the bolt gear slotted into one end... make a shaft with a spline gear either end joining the 2 channels.... the result SHOULD now work when you pull/push as the channel (looking a bit like a short machine gun magazine) is locked either side of the bolts gear, and the other end of the channel is locked to the gear on the end of the shaft... which is attached to the other,channel,bolt yadda yadda. and when you rotate the bolt.. it rolls the gears... doesn't matter how many (least as possible) as both sides match rotation, so will the bolt. I made my own "Trick" block when I was a kid (After seeing a similar trick block. The trick... a block with a string through a drilled hole and out the other side. String passes freely knotted end to knotted end unobstructed. Pick up both knots, hold one hand up and one down... block slides down, switch hands... down up.... block slides down,.... do it again but then block magically stops on its way down... you can make it start stop... Hand it to the guest.. nothing they do works, block just drops. The secret.. Drill hole through block. Cut the block in 2. Drill big hole inside both halves but not right through to the outside. put a bent nail in the inside of one bent over in the shape of a 7 (note a 7 makes a hook) with the hook lower than the centre of the through hole. How to do the trick, push the string in both ends and spin the loose string clockwise to hook it (you need to make sure you know which end is which as spinning the string the other way un hooks it). once the string is 'hooked' holding loosly will allow the block to drop... holding tight binds the string in a V with the holes either side of the hook being the bottom of the V. Phew...
@dkbuilds
@dkbuilds 3 жыл бұрын
Wow, thank you for the detailed response Butler! Lots of great ideas in there! The spinning trick sounds really cool!
@TheButlerNZ
@TheButlerNZ 3 жыл бұрын
@@dkbuilds If only I put the time into actually making things instead of theorizing then going off on a tangent.
@greenrolaids
@greenrolaids 3 жыл бұрын
i showed this video to my 8 year old niece.. she laughed and said "thats stupid."..
@dkbuilds
@dkbuilds 3 жыл бұрын
Haha sounds like your niece has good taste! Now go show her all my other videos and see what she thinks :)
@blackwood786
@blackwood786 3 жыл бұрын
i m a carpenter love u sir
@dkbuilds
@dkbuilds 3 жыл бұрын
Thank you so much BW!!
@holmberghandicraft
@holmberghandicraft 4 жыл бұрын
Would picture hanging wire work better than twine? Anyways, very clever
@dkbuilds
@dkbuilds 4 жыл бұрын
That's a good idea, that wire wouldn't have any flex to it like this string has... I'll try that next time!
@Runescope
@Runescope 3 жыл бұрын
This would work better if instead of a string you used a curved piece of metal so you could push and pull on either end and it would move back and forth. This way if you can only pull. If you were to push either end the other end wouldn't move.
@dkbuilds
@dkbuilds 3 жыл бұрын
Very good point. Thank you for the constructive criticism Thane!
@1965GJS13
@1965GJS13 3 жыл бұрын
Make one where you can both PUSH and pull the bolt......?
@dkbuilds
@dkbuilds 3 жыл бұрын
Good idea. Any recommendations how to do that?
@Sparkjumper59
@Sparkjumper59 3 жыл бұрын
The illusion works only when the bolt is pulled. Pushing does not move the other side.
@dkbuilds
@dkbuilds 3 жыл бұрын
Good point Spark. How would you recommend I make it so pushing works too?
@Sparkjumper59
@Sparkjumper59 3 жыл бұрын
@@dkbuilds don’t cut the bolt and run it though the hole.
@dfhowes
@dfhowes 3 жыл бұрын
Thumbs up if for no other reason than 4:17. 😆 I feel your pain!
@dkbuilds
@dkbuilds 3 жыл бұрын
Hahaha thank you df!! Happens to the best of us :)
@Emanemoston
@Emanemoston 3 жыл бұрын
Vice!
@dkbuilds
@dkbuilds 3 жыл бұрын
Vice!
@rhouland
@rhouland 3 жыл бұрын
изготовить сплошной болт в форме дуги, тоже не большое-то дело :P
@dkbuilds
@dkbuilds 3 жыл бұрын
Это очень хорошая идея! Я плотник, а не слесарь, поэтому я этого не знал: D
@johnwilburn
@johnwilburn 3 жыл бұрын
Cool video, but why not just heat the bolt and bend it around a pipe? That's easier, tighter, and would even still ohm.
@dkbuilds
@dkbuilds 3 жыл бұрын
Wow I hadn't thought of that! I'm a woodworker not a metalworker so I never even considered that. Thanks for sharing John!
@johnwilburn
@johnwilburn 3 жыл бұрын
@@dkbuilds I’m a metal worker not a wood worker, so I never know how ya’ll get the wood to cooperate, LOL.
@TruckerRob444
@TruckerRob444 3 жыл бұрын
if you used metal framing the bolt would move on both a pull and a push......and stain the wood to hide your seams
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks for the advice Robert!
@pouzzler
@pouzzler 3 жыл бұрын
Problem is that pushing won't work
@dkbuilds
@dkbuilds 3 жыл бұрын
Yep good point pouzzler.
@BroughtToYouByDDean
@BroughtToYouByDDean 3 жыл бұрын
Use a spring that had been fixed to the inside ends of the bolt. This will allow push and pull as well rotating
@dkbuilds
@dkbuilds 3 жыл бұрын
That's a good idea BTYBDD! Thanks for sharing
@BroughtToYouByDDean
@BroughtToYouByDDean 3 жыл бұрын
@@dkbuilds thanks! Would love to see it work out.
@Streety420
@Streety420 3 жыл бұрын
Just so you’re aware, the preview clip the KZfaq app provides gives away the “secret.”
@dkbuilds
@dkbuilds 3 жыл бұрын
Oh no! Not sure I can change that. Thanks for the heads up Streety!
@Rubbernecker
@Rubbernecker 3 жыл бұрын
A lot of impossible vanishing sliding bolt experts here. This video must have been shown by the keynote speaker at their recent convention.
@dkbuilds
@dkbuilds 3 жыл бұрын
Damn well said Scott. Really appreciate you sharing a positive comment. The video was clearly a gimmick and just for fun and I'm getting hate rained down upon me! Thanks for watching and for sticking up for me!
@mcmneverreadsreplys7318
@mcmneverreadsreplys7318 3 жыл бұрын
Just don't ever put it in the hands of another - because, for certain, they will do a "pull - push" rather than a "pull - pull" and your fraud will be exposed. To improve this I would square off the 'detour' giving it extended 'slide' room on either end. Then I would bend (or construct) a bolt with four 90 degree turns. Then, you could hand it to anyone and they could "push - pull" to their heart's content. This would also mean you do not need the bolt 'stopper' nuts on the inside - however, I would at least weld one to the threaded end of the bolt on the outside of the block to provide a reason the bolt can not be removed completely. You may use a second nut if you do not want the Head end of the bolt to be pushed all the way to the wood.
@dkbuilds
@dkbuilds 3 жыл бұрын
Good ideas, thanks for sharing MCM!
@userbosco
@userbosco 3 жыл бұрын
Make the hole in the middle smaller next time...
@dkbuilds
@dkbuilds 3 жыл бұрын
Good idea userbosco!
@MZaphodB
@MZaphodB 3 жыл бұрын
impossible ...usefull
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks Jack!
@shariklein5883
@shariklein5883 4 жыл бұрын
try a nitinol wire instead of a string
@dkbuilds
@dkbuilds 4 жыл бұрын
Ooh that's a great idea! Thanks for sharing Shari
@vinceguerra1310
@vinceguerra1310 3 жыл бұрын
Bicycle brake cable
@dkbuilds
@dkbuilds 3 жыл бұрын
Ooh that's an interesting idea. That should work!
@brendanriel888
@brendanriel888 3 жыл бұрын
Somehow try and make it so that you can push one side and not just pull the other.
@dkbuilds
@dkbuilds 3 жыл бұрын
Good idea Brendan! Any recommendation how I could do that?
@dustintunis9347
@dustintunis9347 3 жыл бұрын
Brendan - If you read other comments you'd find several suggestions on how to do just that.
@wallace631
@wallace631 3 жыл бұрын
Reminds me of my ex: She was able to pull me back and forth, as well as push me around... even though at the core, there was only an empty marriage.
@dkbuilds
@dkbuilds 3 жыл бұрын
Yikes! Thanks for watching Wall!
@allahspreadshate6486
@allahspreadshate6486 3 жыл бұрын
I've seen a few mind-bending things created with wood by skilled craftsmen. But this isn't one.
@dkbuilds
@dkbuilds 3 жыл бұрын
Can't win 'em all! It's probably safest if you just avoid my channel from now on.
@AgiHammerthief
@AgiHammerthief Жыл бұрын
instead of sawing it in half I would have split the wood with a hatchet.
@dkbuilds
@dkbuilds Жыл бұрын
That’s a great idea!
@christiansfortruth5953
@christiansfortruth5953 3 жыл бұрын
Oh please
@dkbuilds
@dkbuilds 3 жыл бұрын
😇
@e.c.listening326
@e.c.listening326 3 жыл бұрын
But... it won’t turn... what’s a screw that doesn’t turn...
@dkbuilds
@dkbuilds 3 жыл бұрын
Good point, maybe I should have used a nail!
@barrygordon1173
@barrygordon1173 3 жыл бұрын
Make the hole smaller.....one you put metal pipe in you can tell 100% fake....cuz bolt not hitting metal
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks for the idea Barry maybe I'll try that!
@AliIsmaeltyphoon
@AliIsmaeltyphoon 3 жыл бұрын
Covid 19 side effects . . . . .
@dkbuilds
@dkbuilds 3 жыл бұрын
😂
@karapus001
@karapus001 4 жыл бұрын
rechts und links muss gerade sein!!!!!!!!!!!!!!!!!!! :-((((((((((
@shawnjarman9860
@shawnjarman9860 3 жыл бұрын
Nice amateur way to do this, keep practicing m you’ll get better with designs when you’re sliding the bolt, I can see the bolt wiggle giving away it has been cut, hollow out the center a little more, and use solid material to hold both end instead of string
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks for the tip Shawn!
@kryczeck
@kryczeck 3 жыл бұрын
Pulling it back and forth is one thing... try turning it 🙂
@my3dviews
@my3dviews 3 жыл бұрын
Or pushing it.
@dkbuilds
@dkbuilds 3 жыл бұрын
Yes true that's a definite limitation. I'll try to improve it if I build another version. Thanks for sharing Alex!
@gerritjager5261
@gerritjager5261 3 жыл бұрын
.
@dkbuilds
@dkbuilds 3 жыл бұрын
.
@user-ig3bm9ng8z
@user-ig3bm9ng8z 4 жыл бұрын
когда коту нечего делать - он яйца лижет.(с)
@vitalijgutknecht93
@vitalijgutknecht93 3 жыл бұрын
Alles gut, aber seitlich sieht man
@dkbuilds
@dkbuilds 3 жыл бұрын
Vielen Dank! Welche Seite?
@vitalijgutknecht93
@vitalijgutknecht93 3 жыл бұрын
@@dkbuilds schmalen Seiten
@fido139
@fido139 3 жыл бұрын
It just does not look convincing at its very best.
@dkbuilds
@dkbuilds 3 жыл бұрын
Yeah you've got a good point. Any recommendations how to make it more convincing?
@siriusgd4753
@siriusgd4753 3 жыл бұрын
Too many things wrong with this trick.
@m.b.82
@m.b.82 3 жыл бұрын
Its not very convincing
@MorsDengse
@MorsDengse 3 жыл бұрын
@@m.b.82 Neither is the craftmanship
@dkbuilds
@dkbuilds 3 жыл бұрын
It was made as a gimmick just for fun. I agree it's not exactly mind blowing, but kids like it :) Thanks for watching.
@fredjimbob2962
@fredjimbob2962 3 жыл бұрын
Great vid. But you could just use real magic instead.
@dkbuilds
@dkbuilds 3 жыл бұрын
Good point Fred! I'll try that next time 😝
@brianpoteete2200
@brianpoteete2200 3 жыл бұрын
I think your video would be better if you spoke.
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks for the input Brian! I have a few videos where I speak and a few where I don't, I am experimenting to see what users like best. I will consider your opinion for future videos!
@uliaguileraonline
@uliaguileraonline 3 жыл бұрын
Advertising...
@dkbuilds
@dkbuilds 3 жыл бұрын
🤔
@SteveCarrDrivesAPrius
@SteveCarrDrivesAPrius 3 жыл бұрын
02:55 and can click thru after 03:04
@dkbuilds
@dkbuilds 3 жыл бұрын
😂
@hipphipphurra77
@hipphipphurra77 3 жыл бұрын
Not yet on Copperfield level - but you can practice, practice, practice, practice, ...
@dkbuilds
@dkbuilds 3 жыл бұрын
I will!
@themurph930
@themurph930 3 жыл бұрын
Good clickbait. If you had started with the actual trick I wouldn’t have bothered to watch. Thought it involved turning the bolts, not just pulling.
@dkbuilds
@dkbuilds 3 жыл бұрын
Thanks I guess!
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