While looking for a way to effectively hold down work on my 3018 CNC weturned to Fusion 360 and designed this niffy clamp! It is relatively simple with one fixed end, a slider another movable fixed end which uses three 1/4-20 bolts to put pressure on the slider. Both the fixed and pressure bar are held in place by 4 M5 12mm long bolts (see more here: https://www.amazon.com/M5-0-8x12mm-Available-Stainless-Eastlo-Fastener/dp/B07VLM3QB3/ref=as_li_ss_tl?dchild=1&keywords=m5+12mm&qid=1588875250&sr=8-3&linkCode=sl1&tag=diy3dtech-20&linkId=9e6de8dd9aab98efd2c70d2cde32b6fa&language=en_US ) and T nuts (see more here: https://www.amazon.com/M5-0-8x12mm-Available-Stainless-Eastlo-Fastener/dp/B07VLM3QB3/ref=as_li_ss_tl?dchild=1&keywords=m5+12mm&qid=1588875250&sr=8-3&linkCode=sl1&tag=diy3dtech-20&linkId=9e6de8dd9aab98efd2c70d2cde32b6fa&language=en_US )

Aside from the M5's this also three (3) common 1/4-20 nuts as well as three (3) 1/4-20 3 inch long bolts. For the metric fans out their I would you could substitute something of simular size.

If you want to see more about this design, please be sure to checkout this video:https://youtu.be/_N2sE2KgyfY

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Major Favor: if you make one of these please post the Make and share it with the community :-) .

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