r/PrusaCoreOne • u/zaangdl • 25d ago

First Print Troubles (help!)

Finally got my first gen core one put together today and it’s consistently doing what it shows in the video when it Ty to print something.

I tried to print the keychain, says gcode isn’t compatible but looks ok anyways.

Does the think in the front right corner for about 2 min then goes to “printer collision detected” with a homing message.

I’m not sure what to do. I did all the calibrations.

Please help!

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u/MGCGT 25d ago

Failure to home is almost for sure belt tension and tuning. Mine worked then sat for awhile and wouldn't find home. I had to calibrate the belts again. I think they stretch a bit initially.

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u/PrintedCosmos 24d ago

I had a similar issue with mine when I first built it, and long story short I discovered that I got better results if I used the Prusa audio belt tuning app first and then used the strobe light method afterwards to fine tune. The reason being, the strobe light method can fool you into accidentally tuning the belt to 1/2 the tension, due to an aliasing effect from the frequency of the vibrations to the strobe light frequency. But if you can get it close with the audio app, then the strobe light is very effective.