Problems fitting some parts?? Pins are wider than desired?
UPDATE!!! BETTER SOLUTION: Change 'Horizontal Expansion'
This is an old piece made for testing assembling part. 2 years ago i worked reducing flow for some pieces to avoid the 'horizontal growth' but the better solution i have by far is tweaking the 'horizontal expansion' to get a good fit in pieces that require assembling.
Use this piece as a test for tuning your settings qhen printing assembling parts.
Solution is about controlling the 'flow' of material extruded doing some tests and measuring with any kind of calibration tool.
I have no calibration tool and this is my solution: A simple cilinder and a ring that must fit.
Easy and fast print.
Print-->Test-->Adjust flow an do it again until you get the correct flow value.
WARNING: reducing too much flow (under 75% apeox.) can do underextrusion issues. Combine Flow control with 'Horizontal expansion' parameter to get the result you need.
Tested with PLA
Every filament color/brand/manufacturer prints better with different flows.
Also uploaded the 123D Design file
Hope you find it useful.
Maybe you need some kind of brim if you have bed adhesion problems.
Resolution and infill depends of what kind of print you want to test.