MFT Cam Clamps

[Woodwork Wizard]

Cam clamps for MFT.
I got the idea from       
Best of all you can download a template and make an exact replica. 2 of them holds the piece really well.

 

[PreferrablyWood]

Nice work, thanks for sharing this. I'll be making these up where the need arrises...

 

[flair woodworks]

Nice!  I've been meaning to make some of these for a while.

 

[Svar]

You are right, your first version of the clamp did not work because is was a circle with offset pivot. While it has to be Archimedean spiral (your second version), which has constant separation distance b, namely:  r=a+bθ.

 

[sancho57]

W/W you are da man my brother

 

[Max Fracas]

Thanks a lot for posting these.  I've been thinking lately how handy DIY cam clamps would be.  Great contribution!

 

[Woodwork Wizard]

The Marius Hornberger YouTube video is where I got the idea from. All I did was to copy it by downloading the template, because I have been interested to see how well something like this could clamp but never found a pattern I could be certain would work. They work very well, I reckon they have more clamping power than the Festool clamping elements at £75+ for a pair.

 

[Max Fracas]

Marius Hornberger did a great job on the video and explaining the effective cam shape.  I think the Festool clamping elements work all right but I wish they were lower in price and height.  I've sanded them off a bit now (!) but would like a clamp around 10mm tall.