Oops Clamps with 1/4" hardware

thingiverse

I built an MPCNC and needed some specialized work-holding tools, so I created 3d printed clones of "oops clamps". These innovative devices rely on easy-to-find 1/4" hardware in the US. Each oops clamp requires: * 3D printing one tip, middle, and back at approximately 50% infill * Two pieces of 1/4" aluminum rod, each about 3 inches long (available in 3-foot sections at home improvement stores) * A single 1/4-20 bolt * One 1/4-20 carriage bolt for the back portion * One 1/4-20 nut for underneath the back portion I discovered that additional 1/4" washers were necessary due to slightly overlong bolts. I plan to use a hacksaw to shorten the bolts later. Upon inspection, I found that the diameter of the 1/4" aluminum rod varied across different Home Depot and Lowe's locations. Therefore, I designed the parts without press-fit tolerances. The holes are slightly larger than required, allowing for secure fastening with 5-minute epoxy on the tip and back sections. Do not apply epoxy to the middle section, which is intended to slide freely and securely hold workpieces in place. .step files are included for those who wish to create a remix or modification of these innovative work-holding tools.