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Vacuum Table!

Posted: Sat Jan 16, 2016 1:01 am
by edwardrford
Hi All,

Went out to the C3D shop in California this week to do some R&D and hang out with the rest of the crew. Plus, it's very cold in IL right now, so if nothing else - seeing the sun was a nice change of pace!

Anyway - we had some fun yesterday using Carbide Create to design a vacuum table we've been talking about for a long time now. The entire thing can be cut with a 1/4" square endmill.
front_view_closeup.jpeg
front_view_closeup.jpeg (140.52 KiB) Viewed 11396 times
Between designing, cutting, and gluing the project took a couple of hours. The results were good.
cutting_top.jpeg
cutting_top.jpeg (143.87 KiB) Viewed 11396 times
cutting_bottom_piece.jpeg
cutting_bottom_piece.jpeg (174.78 KiB) Viewed 11396 times
After using the table for a couple of jobs I have some ideas to make it better
- putting locating holes on the top and bottom to better line them up when glueing
- putting inserts into the bottom so the top is easily replaceable
- putting holes in the side that match up with the aluminum table holes

Using a regular shopvac produced enough pull to hold down a sheet of acrylic (which I accidentally cut all the way through as you can see in the pictures...). Later in the day I masked off a good part of the table with masking tape and engraved on a piece of renshape, which also worked very well.
under_view.jpeg
under_view.jpeg (142.19 KiB) Viewed 11396 times
If you're interested in making one of your own, here are the c2d files (one for top, one for bottom)
vacuum_table.zip
(12.91 KiB) Downloaded 416 times
Here is the flanged adapter I used: http://www.amazon.com/gp/product/B00AX5 ... detailpage

If you do make one of your own, send us a picture (sales@carbide3d) with the subject of 'vacuum table'. if you're one of the first 10 pictures we get, we'll send you a free 1/4" cutter for being awesome.

Re: Vacuum Table!

Posted: Sat Jan 16, 2016 3:11 am
by AnonymousPerson
That looks interesting. I've recently been mucking around with other vacuum stuff, but haven't tried making a vacuum table yet. Might give that a shot.

With the c2d files... is that the file extension used by Carbide Create? Doing Googling for c2d, the only results are for a disk image program which makes no sense in this context. :wink:

Re: Vacuum Table!

Posted: Sat Jan 16, 2016 7:18 am
by Brian Stone
This is really cool, Edward. Thanks for sharing. I need a bigger machine before it makes sense for me to build a vacuum table though... I'm crossing my fingers for a 2'x4' S3 option!

Re: Vacuum Table!

Posted: Tue Jan 19, 2016 2:25 am
by TonyB
Awesome! I'd love to see it in action, any videos?

I was also kind of curious, if your material doesn't cover all the holes, is it still effective?

Re: Vacuum Table!

Posted: Tue Jan 19, 2016 9:50 am
by AnonymousPerson
Vacuum cleaners need to draw in air for cooling don't they? If that's the case, then a completely air tight solution might blow it up? :D

If not, then something like Neoprene rubber might work for covering up the holes. :)

http://www.amazon.co.uk/gp/product/B00FF5RSB4

Re: Vacuum Table!

Posted: Sun Jan 24, 2016 7:39 pm
by atrueresistance
I downloaded the zip, looks like just the bottom file was included.

Re: Vacuum Table!

Posted: Sun Jan 24, 2016 9:27 pm
by atrueresistance
Bottom done!

Image

Re: Vacuum Table!

Posted: Sun Jan 24, 2016 10:14 pm
by atrueresistance
Here is the top file I come up with based on the bottom

Re: Vacuum Table!

Posted: Sun Jan 24, 2016 10:42 pm
by AnonymousPerson
Your base looks good. :)

One of these days I'll try out Carbide Create. Today isn't that day though. ;)

Re: Vacuum Table!

Posted: Mon Jan 25, 2016 12:38 am
by atrueresistance
Link to photo album https://goo.gl/photos/aMwuevWKJGHRobc69
edwardrford wrote:
After using the table for a couple of jobs I have some ideas to make it better
- putting locating holes on the top and bottom to better line them up when glueing
- putting inserts into the bottom so the top is easily replaceable
- putting holes in the side that match up with the aluminum table holes
I'm going to try and glue it up with a piece of paper in between. My thought is you should be able to easily pry off the top when putting a new sheet on. I cut a small dado to fit onto the front plate of the SO3. This has the benefit of always placing the vacuum table on the machine square, and helps with torsion. I use the 3m double sided tape to attach everything to the spoilboard :-) Not all of us have a fancy aluminum board :-P When are those going on sale by the way?