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Cyclone PCB Factory - Strange nut and bolt dimensions confused smiley

Posted by ianmcmill 
Cyclone PCB Factory - Strange nut and bolt dimensions confused smiley
September 10, 2015 06:14PM
Hello
I have recently started to print the parts for the Cyclone PCB Factory 2.1.
Now while assembling I have realized that all the nut slots and screw bores are way to big. The nuts often spin while trying to fasten the screws. I have checked the config file (as the whole thing is parametric) and the dimensions for nuts and bores are as follows.
These are the configs for the nuts (Metric)

5.90,//m3
7.30,//m4
8.30,//m5
10.30,//m6
13.30,//m8

But when measuring in the output STLs that come precompiled the m3 nut slots have 6.24mm diameter. Because of this the nuts spin freely.
Also the bores for the screws are affected. An m3 bore is actually 3.78mm instead of 3.0 or 3.2mm to account perimeter thickness. Really strange dimensions.

I have tried to compile the files by myself from the sources (scad files) as described in the header of Cyclone.scad but I still get these strange off-size dimensions.
Anyone else experienced this?


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