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Masterkookus

Hold Down Clamp

by Masterkookus Aug 30, 2016
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these look nice and hold down well but are not very practical since they have no adjustment in and out...i prefer ones with long slots so you can adjust as needed..not all machining jobs have perfect clamping location so these dont work very well since not adjustable..i made some and then tossed them in trash

Thanks much for posting the source files for these, and you did a great job of making it parameterized! I was able to do a remix strengthening some critical parts and so far they're doing a great job of holding down wood cutouts on my MPCNC. Changes at https://www.thingiverse.com/thing:2841271 .

I printed at 3 perimeters and 25% infill and they are working great.

Hold Down Clamp V2
Comments deleted.

Have you snapped one yet? Wondering how much force they can take

I use my metal clamps for bigger materials and cutting, I mainly created these for use on materials that I wouldn't be putting much stress on or are more delicate. I bet if printed at 100% they could torqued quite a bit. If I get a chance to print another out in the next few weeks I think I may take a torque wrench to it to see if it breaks.

Put Torque of 25 in-lbs before seeing stress forming on the 25% infill, I snapped a 30% using a ft-lbs wrench, snapped somewhere between 4-8 ft-lbs.