![]() ![]() It's calibrated so that if you really bang it in then the camstoppa gets stuck before the cam does but it pops off so you can retrieve the cam (you have to try quite hard to do this - the camstoppa is then easily retrieved on its own).Īs regards how to use the file: you need openscad (runs on pretty much any computer) load the file and press "F5" to render it (F6 and then save to STL to print).Īs remus' photo shows the file builds DMM camstoppas by default - you'll have to edit the file (really easy) to build other sorts (instructions in the file). Hence the cam with the camstoppa cannot go into a crack too small. ![]() They are dead simple: the camstoppa clicks to the base of the stem and is just fractionally larger than the absolute minimum size that the cams can be retracted. * You can use them for micros but the limitations of the materials make them less useful. * Not totems because I've never actually seen one in the flesh and not quadcams or similar without more testing. They do work, they are near zero trouble to use, they don't affect the holding power of the cam, and they're actually pretty handy for hard trad as they can make placing a cam in a stressful position easier. The idea, design and code is dead simple for people to hack and adapt for other sizes / makes. I have sizes for most current DMM, BD and WC cams and a bunch of random old ones. ![]() While I'm still tweaking things and missing a few sizes I'm happy to print them for people. It's in openscad (easy to use but code) but I'm happy to make. I retrieved it for them but it got me thinking about ways to prevent this happening.Īnyway, I came up with lots of ways to do this and after lots of testing and measuring I found a nice solution that can be 3d printed and fitted to pretty much any cam* provided you know a few measurements.Īfter forgetting about this for about a year I've tidied up the code and put it on github: A long while ago I was stuck for ages on a route behind someone who had placed a cam badly and couldn't get it out.
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