3D Printed Vacuum POD's??

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This topic contains 12 replies, has 7 voices, and was last updated by  Al Quentin 1 month ago.

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  • #29392

    Brian
    Participant

    The recent discussion of vacuum tables and or vacuum pods has really had me thinking. I think the PODS would work beter for me since I could move them around the work surface to fit the size / shape of the work material and I could even screw them onto my spoilboard, and remove them later.

    >>Also, the 2-Sided PODS would work great for me too. Examples here

    http://www.veneersupplies.com/products/Podz-Vacuum-Clamping-Jigs.html

    http://www.ebay.com/itm/2-SIDED-VACUUM-CLAMPS-PODS-Vacuum-Table-CNC-Machining-/280708685096

    I could make these out of HDPE, Aluminum etc. But my question is do you think 3D printed PODS would hold a vacuum??

    #29411

    Barry
    Participant
    #29413

    Yeah, this should work fine. Just make sure not to under extrude and do at least 3 perimeters with enough infill. Make sure that there is no gap between perimeters.

    I made a few 3D printed parts for pneumatics applications (pneumatic muscles) and they work up pretty well.

    I didn’t know these vacuum pods, I think I’ll print some right away, thanks !

    #29439

    Jim Hildebrandt
    Participant

    #29444

    P3DCNC
    Participant

    I would probably cut through one of these in no time. That’s why we have spoil boards right ;)!

    I’m planning to do this with my spoil board essentially. I have a 2’x4′ cut area that I will divide into zones. The underside will serve as the plenum (where the air is pulled from) and the top side will have zones routed, think perimeter channel around the zone with matrix of channels inside the zone, and several holes for clamping with one passing through to underside. This way I can use mechanical cam clamping and turn off unused zones by plugging one hole.

    I think I’d buy an actual vacuum pump though. Shop vacs are sooo loud!

    …on my to do list.

    #29445

    Barry
    Participant

    Vacuum(hold down) pumps are pretty loud too. These aren’t the same as a vacuum(seal/freeze dry) pumps.

    #29447

    P3DCNC
    Participant

    I wonder if you could get the impeller part (or whatever makes up the vac pump) and attach it to a 1hp motor. I have a pool motor laying around that is super quiet. Much like my dust collector is much quieter than my shop vac.

    #29448

    Barry
    Participant

    Vac pump impellers are the expensive part. They’re usually graphite and have to be replaced after a certain amount of hours. Their clearance between the impeller and housing is insanely close. I bet a cheap dust collection blower would work.

    #29450

    P3DCNC
    Participant

    I have a 1HP dust collector. It works well if it’s not restricted. It works awful as a vacuum. Shop vacs are far more robust for vacuum purposes.

    #29451

    Brian
    Participant

    I was planning to use this pump http://www.ebay.com/itm/131845616776?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

    Your gonna really bust my bubble of you tell me that wont work lol

    #29455

    P3DCNC
    Participant

    Hmm. Guess you’ll let us know :). I’m sure that might work better than a dust collector. This is what I have and is what I was talking about: 1HP Dust Collector

    If you reduce the 4″inlet down to a small shop vac tube (1 1/2 or so) it really kills it. Put your hand on the end it it’s reduced to nothing. Has great flow when it is unrestricted. Not at all if it is. One of the reasons why I’m redoing my dust pickup on my mpcnc to accept a larger hose.

    #37621

    Peter A Mills
    Participant

    Did anyone follow through and make these vacuum pods? I ran across these in a different place and was going to ask about them. Good thing I searched first as it’s been covered. Seems like a good idea for some of the work I’ve been wanting to do.

    #38529

    Al Quentin
    Participant

    Not done yet, but my attempt at a design is attached. I’m trying to use an o-ring (AS568-337, 2.975ID x .210CS) instead of vacuum tape. Might work as-is, but haven’t tried printing it yet as I still need the hardware used in the DIY:

    http://www.joewoodworker.com/veneering/vacuumclampingmatrix.htm

    Bit of a hack, but might be useful as a starting point for someone with actual CAD/CAM skills.

    – Al

    P.S. Zip contains .stl, .step, .sldprt, and .dxf files exported from the Onshape file.

    Vaclamp-w_o-ring

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