If you made the base layer out of a non-permeable material, the vacuum forces would be directed soley to the work surface. It would dramatically increase the functionable hold down pressure.

"that's a win, that's innusual for me". some people laugh but i feel that bro. Amazing work!

I couldn't tell from the vid, but if you plane off the smooth finished faces of the mdf spoilboard, you get better air transfer through it. You'll also lose suction through the bottom of the mdf you cut the grooves through, either using a non permeable substrate is preferred, but a good coat of paint helps a lot too.

the top board doesn't have to be permeable, if anything it would be better if it wasn't. that way all the suction would suck through the waste board. looks great though, works and has given me a bit of motivation to make something similar.

My head is in heavy thought. I love your design. Fantastic job for sure. I own a Bob's CNC and thinking about incorporating it into the base of my machine. I think it can be done if I use 1.25 strips like you did for height clearance of the PVC piping. Either way with or without I absolutely admire your build. I am a fan.

Thank you for your great work man..!

You should seal your grid board. You are losing suction due to the mdf being permeable, therefore, half of your suction is being lost. If you seal your grid board and leave your top (waste board) unsealed, all of your suction will be directed from top down. Few coats of shellac or poly should do the trick.

I recommend soaking the plenum in some kind of water seal (Thompson's). It will stabilize that part from humidity or a spilled beer.

Looks good bro. I’ve never watched a video on making you’re own suction table. Great idea man. It’s got me thinking for my own cnc.

Awesome build, thanks for sharing!

That Bourbon Moth entry 😂😂😂

This is great. However, if you make the vacuum plate with the channels in it out of something that is non-permeable, you will get much better suction, which is why they are usually metal. The spoil board / waste board on top of this, must be permeable which will give you greater suction of the material to be cut on top of that.

Whatever happened to you? Miss your videos and ingenuity. I’m about to finally purchase a CNC and was looking at ways to clamp boards down. That’s great for full sheets, wondering if you can adjust holes with plugs to only do small boards. Hope all is well and hope to see you back on YT soon.

Good job Donnie. I'm about to do the same thing to my new Infinity cnc when it arrives.

Hey man! I just went through all the comments and it looks like you never got around to answering the questions about the vacuum specs. Any chance you can follow up?

intro was great. well done 😅

That is awesome. Thanks for sharing. Now I want to go make one

Nice job! Impressed with the performance. It appears that you are running a rather small, vacuum hose. By chance, would you give some feedback on the specs of that vacuum/shop vac? Would you do anything different now that you’ve been using it for a while?

Great video! I enjoyed that. Thanks

You should wear a respirator when cutting MDF (really, when cutting anything)!

if the second board is held down by the first board, it's unclear if any of the plumbing pipes, grooves for air or seals in the grooves were needed. that suggests just a small wooden box with a piece of midf on top is all that's needed. Anybody tried that before?

I'm considering making one of these myself, but I would love to hear how well it works with smaller pieces. It makes sense that it would hold down a large sheet of plywood due to the surface area, but I'm concerned about it's effectiveness with smaller pieces.

6:10 with 2 board? vacuum through the first one or how? I dont get it.

Hi Donnie, Would you please share the document you are using in this video? :)

How in the world did it hold down the second board? Thats crazy and doesn't even add up in my head.

You might want to buy some down spiral router bits.

Regarding the spoilboard, I'm so confused, how does it work with two boards if there are no holes in the first? Please help me figure out what is going on here?

What power is that vacuum cleaner you use? He didn't think he could get through both woods 👌👌

great work. but maybe I am too stupid... how does it work with two boards?

excellent work, how much power does the vacuum you are using have?

another wicked informative video,well done and thanks

I am the 1000th like. Good job.💪😲👍

DONNIE!! Dude! That is awesome! I love your videos!!! This might be my new favorite!! “Check out some of this other shit I made”🤣 Keep killing it!!!

Is there any update to this build? How is it holding up? Anything you would change?

What a great vid. How far apart are the groves and how deep? I am going to make this tomorrow.

THANK YOU FOR POSTING THIS VIDEO!! Just what I was looking for...really appreciate the content. I will be doing this for my CNC for sure...question: What spec shop vac are you using for the table and any issue with the vacuum with longer runs?

a month later, how's it holding up? I'd worry about dust filling the pores of the MDF and lowering the permeability

amazing. Im really struggeling to find someone who can produce some blisterforms for me. Companies dont do small amounts. I would need someone like you who can produce them for me. i have the mold. would be great if you could take commission?

Good Job!!

awesome video

This only works when the workpiece size matches the spoilboard size. I mean what if you need to work on a workpiece that is smaller than the vacuum surfae?

Do you have a cnc file for this ? I want to make one. Great video

how it is imbosible to work with two board??

Great video Donnie! Were you using 3/4 mdf? Getting ready to make something simular for my onefinity

Why is this dude the blue collar linus sebastian

Thanks a lot sir ,

i might of missed it in the video, but what did you use as a vacuum? shop vac or something more industrial? also, where can i find and stl file to cut out the slots for the vac board?

I was wondering how to build a custom vacuum system. Unfortunately, my CNC machine does not have as much clearance in the Z axis as yours. Mine is just about 2.5" so, making the vacuum bed as tall as yours is not an option since I need to carve materials that are 2" tall.

Nice.

Very good video Do you have the file for the cutting of the table

How does the vacuum pull on the second MDF board?

Hey Donnie, I'm curious as to what size pvc pipe you used and what is the CFM rating of the vacuum you are using. I am looking to build one to a 36" x 48" size with wither 4 or 6 zones.

What vacuum pump did you use ? I mean the rating, flow rate etc.

How well does it do for smaller footprint pieces? How about thicker pieces?

Hello, Can you tell me ,what is the measure of each square, and the measure of channel Thanks

Can anyone recommend a vacuum pump good for this purpose? My household vacuum thermally shuts off after prolonged use..

What was the CFM of your vacumn?

Would you by chance have any plans for your build??

How does it work when you put something a little smaller on it that the size of your grid?

great video, what kinda vaccum did you use to hold this down, could you send a link for the vacuum from amazon?

Can u tell us about the vocuume motor

I am a Ding-Dong.....ROFL.....Regards from good old germany !

IS THAT JUST BACKER ROD FOR WHAT YOU USED IN THE GROOVES? SORRY ABOUT THE BULLSHIT CAPS LOL

could you share the specification of the vacuum machine

What CNC machine do you have?

Hi. Would it also work if I cut a plastic plate?

How do you like the Grizzly CNC? Is it a 2x4?

HI, may I ask what is the festools vacuum cleaner model?

How does placing the second board on top of the first board get its suction from? Doesn't the first board cover up all access to the vacuum chamber?

Do you have the DXF files you used make this table available for download?

What was your gasket material?

Le MDF n’est pas etanche à l’air , il faut absolument mettre du bouche pore

I have a general question. Does it still work of you don't put a whole sheet down? Would you need to cover the "empty" areas with plastic or something?

Amazing job. And thank you for using some swear words. How to videos have forgotten their roots.

Nice Please update DXF file link

😁😁😁😍

Never build one with mdf worst product to make it out of it needs to not be porous other wise you loose vacuum it’s also needs to be stable under heat and humidity again mdf is terrible for this it should be made from Bakelite or phenolic or rigid pvc

If think your scripting/reading is sometimes a little michael rosen-ish, feels like you're making the tutorial as a children book :/ just sometimes tho, the rest os good

Lots people asking questions and no answers. Not a helpful channel

Lol that’s unusual for me lol too funny !! Shop looks nice gonna duplicate your design is it available online ?