Well, I foolishly decided that instead of editing together some existing video of my machine for Ryan’s contest I should start a new project. I’ve been putting off building a vacuum table for awhile but really want one. And since the pink foam I’ve been using as a waste board for my foam board cutting is starting to wear out decided it’s finally time.
Not sure if I’ll actually get the video edited, rendered and uploaded in time…but…here’s a peek at the project anyway:
It’s really cheap to build, just 3 sheets of dollar tree foam and a 3D printed adapter. I cut the foam with my needle cutter on the MPCNC and all three sheets took about 45 minutes combined. The 3D printed adapter took just over 4 hours…I like cutting things way more than printing them anymore
Here’s the slightly risque view of it’s exposed bottom. One sheet has vertical 1/4" slots, one has horizontal 1/4" slots and the top has 1/4" holes positioned to align with where the slots line up. The bottom is left open so it can suck itself down to my table.
The slots for the 3D printed nozzle I cut by hand since I couldn’t be bothered to deal with them in CAD. And I wasn’t sure which nozzle I was going to use or if this fancy one would even print. And what a print it was:
Love watching these “top heavy” prints build…but they do make me nervous! Didn’t even use a brim and it came out first try though. Glad I did the Z mods on my FolgerTech 2020 i3 though since otherwise it wouldn’t have fit…as it was it barely did:
The last few layers it was pushing my LCD around, and only half of it got any cooling because the wires were dragging on my cooling fan causing it to stop turning for half of each layer.
This crazy 3D printed nozzle is on mobeasts MPCNC low rider inspired foam cutting machine here: Foam Ripper by moebeast - Thingiverse
A simpler option is the nozzle I originally planned on using which I modified from another listing on Thingiverse: Customizable Vacuum Crevice Tip With Offset by jhitesma - Thingiverse it’s a customizer and lets you make your own offset nozzle. But mobeasts was too cool looking for me to not try
It only takes a few minutes to CAD up these sheets…but may as well share my work.
I did it in OnShape so the link to the project is here: Onshape
Just right click on the 3 different sketches and export them as DXF then CAM up in your usual way. This could be cut with a spindle/router…but for foam I love my needle cutter so of course that’s what I used!
Ok…now back to editing down this video and trying to get it up in time for the contest!