X2 CNC Power Drawbar

Рет қаралды 24,353

10 жыл бұрын

I finally got around to this after a year and a half of tool changes. This is very nice to have and is well worth the $. This is my version of the Power drawbar I made several changes to lighten the whole unit but the basic design is from Dan's at Hossmachine.info. I try to show all the parts needed for the PDB so you can see what's involved. Also take a look at the M6 macro video for manual tool changes.Thanks for watching please subscribe to the Channel. Visit the website at www.cnc4xr7.com X2 PDB kits are now avalible

Пікірлер: 84

@UnorthodoxFabrication 8 жыл бұрын

I really enjoy your videos and have subscribed. Please keep up the great work.

@CNC4XR7 8 жыл бұрын

+Unorthodox Fabrication Thank you for the sub, Video's take time but I really enjoy sharing the info . Be Safe, Sam

@EZ_shop 9 жыл бұрын

Dude, that was excellent! It was exactly what I wanted to see. Thanks.

@CNC4XR7 9 жыл бұрын

Your welcome.

@shawnlund 9 жыл бұрын

That's awesome, thanks for the breakdown and explanation, much appreciated

@CNC4XR7 9 жыл бұрын

Your welcome!

@TrPrecisionMachining 4 жыл бұрын

very good video..thanks for your time

@CNC4XR7 4 жыл бұрын

You are welcome!

@AGN_Customs_LLC 2 жыл бұрын

That's bad ass!

@CNC4XR7 2 жыл бұрын

Thank you!

@Shopbuilt 6 жыл бұрын

Thanks for the info, what is the minimum air pressure needed to compress the springs?

@CNC4XR7 6 жыл бұрын

Hmm, I never tried to use a Minimum air pressure I run it @90 psi works great.

@benjaminusey382 8 жыл бұрын

Sam, I was successful! Will post a video of the finished product soon. Posted one before it was finished.

@walsayer 9 жыл бұрын

Thanks for sharing your insight on the topic. And thanks for giving credit to hossmachine, not many people do that. Could you also add an annotation (using KZfaq annotation) in the video where you put the wrong site name of hossmachine.com. It took me a while to figure out later that it is hossmachine.info. I didn't notice it is mentioned in the description.

@CNC4XR7 9 жыл бұрын

Waheed Alsayer Your welcome, Dan did all the work I just tweaked it to suit me. I thought I had made the link Error changes I guess not I have now Hopefully it clears things up. Thanks for watching, Sam

@cncdavenz 8 жыл бұрын

Hi Sam. I have just found your channel and are working through your many videos. They are all very well presented and relevant to the type of modifications the home user is likely to consider. The draw bar project is something I would like to do to my mill but up until now have been unsure of how they work but now it has clicked. Can you tell me were you obtained the pin clamps that you use on your toolmakers vice.Cheers Dave.

@CNC4XR7 8 жыл бұрын

+Dave Bassett Sure LMS littlemachineshop.com/products/product_view.php?ProductID=2675&category=1963256911

@divemasterbill 8 жыл бұрын

Absolutely great work you and Hoss are doing .I am just finishing my CNC conversion on my LMS 3990 and your videos and Hoss's have been invaluable to me . Can you send me a link to where to get the tool holders.

@CNC4XR7 8 жыл бұрын

I get mine from little machine shop : littlemachineshop.com/products/product_category.php?category=209730719 Or Tormach :www.tormach.com/store/index.php?app=ecom&ns=catshow&ref=TTS

@divemasterbill 8 жыл бұрын

Thanks for the info Really fast reply Great work I'm gonna start draw bar next

@CNC4XR7 8 жыл бұрын

Great! let me know if ya need anything Be Safe, Sam

@reedivan4828 6 жыл бұрын

Hey, i was wondering if you could send me the prints for the 3990 draw bar.

@IcanCwhatUsay 6 жыл бұрын

Do you know the BImba part number for that air cylinder by chance. The place everyone got them from is out of stock and I'm having a hell of a time finding that exact one. Hoss said he paid $3.50 for it and everywhere I've looked is $45 or more, so I want to be sure I'm getting the right one.

@vegandiver 9 жыл бұрын

Regarding 4 vs. 6 belleville washers. adding the extra 2 washers doesn't really increase your holding force. The way you have them stacked (serial) adding more washers doesn't increase the force applied. if you stack them in parallel (cups inside each other) you'll get more force. Having the extra washers will increase the travel of the spring, so that may aid you in removing your tools a little easier. Either way, it seems to work! I like the way you set it up, I think it's a really clean install! kudos!

@CNC4XR7 9 жыл бұрын

How do you suggest they be stacked?

@CNC4XR7 9 жыл бұрын

If there's a better way I'm all ears. I only use 4 now I also found that 6 was not needed. Thank you Sam

@vegandiver 9 жыл бұрын

I think the way you have them is perfect! I use Belleville washers all the time at work. I'd only change the stackup if you needed more force or a longer travel with the spring. as long as you can easily remove the tool in the down position and your tools don't come flying out of the collet when you take a heavy cut, I'd say it's great and wouldn't change anything :-).

@CNC4XR7 9 жыл бұрын

Thanks yea there working great so far I mostly use a .375 endmill and so far so good.

@flyingdog1498 5 жыл бұрын

kzfaq.info/get/bejne/h85_d9h3qJmmdpc.html

@WillHoward317 4 жыл бұрын

What material are you using for the TTS style tool holders? and do you ream the internal to final size or just a boring bar? Thanks!! BTW I think I've watched all of your videos!! GREAT STUFF!!

@CNC4XR7 4 жыл бұрын

I used in this video a 1.5" bar of Stainless steel. Reamers are recommended. You can buy TTs Knock offs for around $15 each

@WillHoward317 4 жыл бұрын

CNC4XR7 do you have a supplier for the tts tool holders... I’m not finding any

@CNC4XR7 4 жыл бұрын

@@WillHoward317 www.hobby-machinist.com/threads/inexpensive-tts-alternative-or-r8-quick-change-tooling.77304/

@dalepowell3822 5 жыл бұрын

Looking for the parts breakdown and did you do any type of an upgrade to the axle spindle thanks

@CNC4XR7 5 жыл бұрын

I followed Hossmachine.info plans for the most part I did not upgrade the bearings.

@fredbana 8 жыл бұрын

Sam where can i find the 1/8 NPT 3-WAY 2-POS 24 VDC SOLENOID AIR VALVE that you use in your project ? thanks

@CNC4XR7 8 жыл бұрын

+Fred Bana here is a good sorce and explanation of the different types. www.frightprops.com/faq/content/2/51/en/solenoid-valves-the-different-types-explained.html

@a154james 8 жыл бұрын

Any chance you have a parts list? :) At least the spring washers you used and the piston, would be very grateful.

@CNC4XR7 8 жыл бұрын

+a154james Hi You can find the info at www.hossmachine.info the belville washers cylinder size etc. he has his drawings also I used his design as my guide for my build no sense in reinventing the wheel. Be Safe Sam

@balestracycling8317 5 жыл бұрын

Is it also possible to use a normal 3MT TTS colllet to make a drawbar insted of using the r8 collet?

@CNC4XR7 5 жыл бұрын

I have not tried it I think it should be ok its just a R8 3/4" collet that you use so a 3MT 3/4" collet should work fine. the TTS tool holders seat up against the bottom of the spindle.

@CncObsession 9 жыл бұрын

Very good job and explanation. At 1 point you mention boring (really drilling and tapping) the head for the side plates. Why not mount it to the plate of the belt drive. It wouldnt require any machine mods. Minor detail just an option.

@CNC4XR7 9 жыл бұрын

Thank you, I did consider mount on to the belt drive. My plate is only 1/2 " thick and since the belt drive was made before the PDB I didn't have enough meat to feel good about mounting it to the belt drive plate. With a little planing it can be done. And is a great alternative.

@williamhardin5254 9 жыл бұрын

I really enjoyed this video, graet job of explaining what you have to have in the way of parts. I went to Hossmachine.com and all I found was a virus. After getting rid of that problem I did some searching around and found a website called Hossmachine.info, there I found everything you talked about except for the power draw bar. I did find a pdf put out by LittleMachineShop.com on his website that described the power draw bar with pictures but no drawings were included. Do you have any other info?

@CNC4XR7 9 жыл бұрын

Hi W. H. Thank you why don't you email me my name at gmail. Com I will help all I can

@williamhardin5254 9 жыл бұрын

CNC4XR7 I'd like to email you but I couldn't find your name. I did however, managed to find out the info for the power drawbar by doing a search for "Hossmachine Power Drawbar" on Google. I now have the parts list and drawings that I was looking for. Thanks for responding.

@koenkersten6987 5 жыл бұрын

what dimensions are the inner and outer circle of the Belleville washers and the thickness of the Belleville washer?

@CNC4XR7 5 жыл бұрын

I dont have the machine anymore I think these are the washers I used. www.mcmaster.com/9712K436

@Ziedin100 9 жыл бұрын

What kind of air solenoid is that and how much was it? where did you source it? Thanks!

@CNC4XR7 9 жыл бұрын

Ziedin100 The air solenoid is a MAC Brand 24v #45-BA1-DDDA-1BA its a 4 way valve. Any air solenoid will work. Some air cylinders have a return spring so a 3 way valve will work My Cylinder did not so I use air to push down and up. Here is a site that explains how the valve works and they sell them in Ac and dc voltages.www.frightprops.com/faq/content/2/51/en/solenoid-valves-the-different-types-explained.html

@CNC4XR7 9 жыл бұрын

No Problem Glad to help, Thanks for watching, Sam

@CNC4XR7 9 жыл бұрын

***** No Problem Thanks for watching! Sam

@neilcunningham5542 5 жыл бұрын

i cannot find the plans Hoss posted. his old site is down do you have a copy of the plans would love to build one of these.

@CNC4XR7 5 жыл бұрын

Hi Neil , Yes I have his drawings but I can not freely pass this information on. Try and contact Hoss through CNC zone.

@ISILENTNINJAI 5 жыл бұрын

I cant see the design from hoss machine. Is there any other designs you could point me to?

@CNC4XR7 5 жыл бұрын

sorry no

@jimminnick5989 4 жыл бұрын

Do you have the plans for this, hossmachine no longer online, Thanks.

@CNC4XR7 4 жыл бұрын

Sorry no I dont and there not mine to give out. Check on CNczone you might be able to fine the information.

@michaeljuan98 4 жыл бұрын

Would you be willing to release the cad since hossmachine website is no longer up

@CNC4XR7 4 жыл бұрын

Im sorry I do not have those.

@amjadatieh1 7 жыл бұрын

how did you grind down the collet?

@CNC4XR7 7 жыл бұрын

amjad atieh I just used a bench grinder. beware the import collets do not accept Tormach holders well. better to buy a Tormach collet

@reedivan4828 6 жыл бұрын

Hello, do you have the blue prints for power draw bar still? Hoss machine website down..

@CNC4XR7 6 жыл бұрын

Have you tried contacting him?

@reedivan4828 6 жыл бұрын

Whats his address? The one i tried bounced

@CNC4XR7 6 жыл бұрын

I'm not sure can you email me

@IcanCwhatUsay 6 жыл бұрын

g0704.com has a link to contact him, he's also on CNCzone.com

@Thekingmaker 3 жыл бұрын

@@IcanCwhatUsay wondering if you know if he is still on cnc zone, couldn't find him, thanks in advance..

@JPurontong 8 жыл бұрын

why not mount the bimba directly on top of the spindle?

@CNC4XR7 8 жыл бұрын

+En Liri Hmm, How do you mean I would be interested in your theory, Be Safe Sam

@JPurontong 8 жыл бұрын

The bimba is pushing the disc spring spacer, right? So why not directly aim the pushing rod of the bimba on top of the spindle to press the disc spring spacers?

@JPurontong 8 жыл бұрын

you could use a Bimba Flat

@CNC4XR7 8 жыл бұрын

+En Liri Ok I see the reason it is configured this way is for leverage so as to use a smaller cylinder.

@IH1940HAY 3 жыл бұрын

Are plans available still available?

@CNC4XR7 3 жыл бұрын

As far as I know they are not.

@IH1940HAY 3 жыл бұрын

@@CNC4XR7 thanks

@TBR_LLC 8 жыл бұрын

extra weight? bo-zo

@CNC4XR7 8 жыл бұрын

+elcanfan The weight of the PDB has not been a issue for me and my setup but yes it does add some weight. I did instal a air spring and with the power off my Z axis remains stationary.

@helicrashproprocrasher2367 9 жыл бұрын

You are pushing all the weight of the draw bar against your bearings. You don't see a problem with that?

@CNC4XR7 9 жыл бұрын

Yes I see, there are trade offs I am also losing a little accuracy in the spindle. But please bear in mind this is a $600 mill so the risk of the bearing wearing out prematurely is a risk I'll take for the convenience of the PDB. Thanks

@JaakkoF 6 жыл бұрын

The force needed to compress two Belleville washers (he has them in series so it is really the force of only two) is very low load on the bearings. Even a basic drilling operation will put more force against those bearings. If you however are converned about the axial loading, change the bearings to tapered roller bearings.

@benjaminusey382 8 жыл бұрын

Sam, I was successful! Will post a video of the finished product soon. Posted one before it was finished.

@CNC4XR7 8 жыл бұрын

+Benjamin Usey great looking forward to seeing it.