MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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That is tricky. I had some issues as well. You have to tune the impact pin housing. I had to put a little tension on the hair spring and adjust that housing just right until it had enough spring back to lift the fork and return. A lot of trial and error. Deffinatly have to have the lock nuts loose enough to have free movement of the balance wheel.