3D Printed Vacuum POD's??

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This topic contains 10 replies, has 5 voices, and was last updated by Profile photo of P3DCNC P3DCNC 1 month, 2 weeks ago.

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  • #29392
    Profile photo of Brian
    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
    Profile photo of Barry
    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
    Profile photo of Jim Hildebrandt
    Jim Hildebrandt
    Participant

    #29444
    Profile photo of P3DCNC
    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
    Profile photo of Barry
    Barry
    Participant

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

    #29447
    Profile photo of P3DCNC
    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
    Profile photo of Barry
    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
    Profile photo of P3DCNC
    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
    Profile photo of Brian
    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

    • This reply was modified 1 month, 2 weeks ago by Profile photo of Brian Brian.
    #29455
    Profile photo of P3DCNC
    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.

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