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Yet Another Set of Cam Clamps

197 likes
2293 opens
1233 copies
9 comments
Jonas Karlsson

Project by

Jonas Karlsson

General Information

Large clamps that work with the 75mm wasteboard threaded insert spacing for universal reach.

4 camps cut from a single piece of 12″ × 12″ × 1/2" (actually 13mm) MDF.

Multiple bolt holes allow for better alignment of the clamping force vectors.

Like this project Open in Easel®
Material Description Price
Flat Washer

Flat Washer

Finish: Zinc Plated, Dimensions: I.D: 5.3mm; O.D: 10mm, Quantity: 10

$2.99
MDF Wood

MDF Wood

Dimensions: 12 in × 12 in, Thickness: 1/2 in

Socket Head Cap Screw - Packs of 10 each

Socket Head Cap Screw - Packs of 10 each

Length: 30mm, Quantity: 10, Thread Size: M5

This project's Bill of Materials is not complete. Add to Cart

$2.99
from Inventables

1

Cut out pieces

30 minutes

Carve out the clamps

2

use the clamps

Place your material on your wasteboard
Place the clamps around your material
Choose the hole that best lines up with the nearest threaded insert hole. The clamping force is perpendicular to the edge where the clamp meets the material being clamped. You want to have this force be directed as close as possible through the mounting bolt, so that you are mostly dealing with compressive forces, and minimizing torque forces at the bolt/washer.
Enjoy the carve.

Justin Haugens
I don't understand how to use these, it feels weird that I just don't get it. ha
Justin Haugens
Neil Berkeley
Excellent first project I made these hold good and tight Thank you for sharing
Neil Berkeley
Adam Lesser
So, I feel really stupid, but I also don't get it... I made 4 of these and tried to clamp a rectangular piece as shown, but no matter how I arrange the clamps or rotate them, they keep moving one another, and the piece is never REALLY secure when I try to move it more than a little. Ideas?
Adam Lesser
Adam Lesser
P.S. It would be great if there was a video demo or something, I've looked for similar types of clamps on the 'net but i'm coming up short.
Adam Lesser
sebastien bujold
i modded them with a 3/4 hole and thy works great :) thanks for the design !
sebastien bujold
Gertjan Brons
I think you have to have one side of your material against a solid stop or block, that will keep the clamps from moving
Gertjan Brons
Adam Simmons
Don't use 4 of these at the same time. Make an L bracket to anchor your work near the home point, and use these cams to push the work into the L bracket.
Adam Simmons
Bruce Wagner
I love these clamps! Added to the corner square they make setting up quick, easy and repeatable. Thank you for posting these.
Bruce Wagner
wesly denton
I have to say thank you for sharing this. I would also like to add that old furniture made of MDF is a great way to save money on making clamps and other handy items. Less garbage and more gadgets to add in the workshop.
wesly denton

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