Wooden Cam Type Clamps

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That’s quite an “honor”??? At least it didn’t appear from a Cloud… But that really is an accomplishment, I am impressed, great work. I’ll see what I can return the favor with. Maybe for my single action rubber band revolver… I could call it the “Arkansaw Kid”…I seem to remember you saying that’s where you are. Thanks for the “name-innation”. That is cool to name something you worked on for someone else, quite a gesture and much appreciated. Jude

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Thanks, and you’re welcome.
It took me all day, but I learned so much, and now that I’m learning Sculptris, and ZBrush, I can make .stl models all day long :slight_smile:
Grass hoppers are a rare find, the only one I could find was over $30, so I decided to make one to share.

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So much better than those “russian” ones, but they did have an elephant sitting on a rock like “the thinker”, do grasshoppers think?..more ideas than I can contain…Oh…I got tons of grasshoppers in the yard… Jude

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Here it is ready to cut in Estlcam, I’m not understanding enough about this process to try it yet, but the grasshopper is.

my grasshopper.PNG1768×878 381 KB

Nice work Jerry.

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While that looks nothing like even old David Carridine, I like it! My appologies I just could not pass up the Young Grasshopper!

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How did I forget Master? No apologies needed, gotta love memories, if only I could forget some of mine. I do believe that youth is wasted on the young, we do appreciate those times, somehow…

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Well I hope they work for you. They probably could use some improvements, but at least there is a baseline to go off of. I made two pieces of wood to serve as straight edges that would line up at 90 deg and would bolt to the pattern in my wasteboard, as a supplement to these clamps. Now i’m finding that if I use my X and Y axis travel to make those edges no kidding straight (by jogging the machine manually while running in only the X or Y axis and taking a thin cut off the edges), that they don’t meet perfectly at 90 deg. Maybe like 89.5. So I’m rechecking the square-ness of my machine. As far as the machine knows, it’s X-axis is perpendicular to the Y-axis, but that’s not how they come out in reality. Mildly annoying.

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Those look interesting. Can you please show how these work. Ty

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Check out this video. It’s simple yet effective. https://www.youtube.com/watch?v=tJO4K-UTgo0

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Here is some pictures of them in action.

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I’m still laughing about this, brightens up a dreary day. Thanks again Jerry

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I made a similar torsion clamp system designed and made by Marius Hornberger.
It uses the “dog hole” features and requires 3/4" or 19mm pipe to be cut and used for locating & stabilizing the clamp components. Marius is a little sarcastic, but very German, good entertainment and educational, so edutainment?
Tem

These videos:


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I created a slightly modified version of Marius’ parts that is based very closely on the DXF file he provides a link to.
I created my parts using fusion 360. I can provide them if interested.

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I, for one, would appreciate your F 360 file. And, thanks for offering!

If you mill a large variety of materials, shapes etc you cannot have too many work holding options!

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My only concern with this work holding system is that it doesn’t hold down the work, so the work could potentially be picked up and thrown across the shop. I haven’t had this issue yet, crossing fingers. Maybe it’s the fact that I use conventional milling to hog out the mass of material and then do up cutting for finishing? I’m still learning.

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I also have made a modified version of Maruis’ design based off the DXF file he made that fits my 2" threaded insert spoil board. I have found it to be a pretty solid work holding system as long as your stock is relatively flat.

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http://a360.co/2HfbyKz
marius

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Sorry know this is an old post… @Tem do you recall if when you modified the design if it was intended to work with the Festool MFT style of dog spacing or if you modified the file for Marius’s dog hole spacing?

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Hi! The original file that Marius provided was a hand drawn sketch, IIRC.
I tried to very carefully stay consistent with it, but had to clean up the rough spots.
In regards to spacing, I nearly followed his recommendations, 75mm on center.
Tem

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Thanks @Tem those are non-festool style then; I’ve iterated a bit and come up with a more elegant version for Festool MFT Style Spoilboards.

Heres the thread:https://community.carbide3d.com/t/festool-mft-cam-style-clamps/17245

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