Is this normal?
I just got done with building the kit and the calibration tests all passed. I have been able to print two of the sample keychains. When the printer begins to print it moves all the way to the front right corner and then hits the rails multiple times for about a minute and then it begins printing. The prints aren’t the greatest so I need to figure that out still.
RE: Is this normal?
I just got done with building the kit and the calibration tests all passed. I have been able to print two of the sample keychains. When the printer begins to print it moves all the way to the front right corner and then hits the rails multiple times for about a minute and then it begins printing. The prints aren’t the greatest so I need to figure that out still.
It is normal that the printer "bangs" the right and front sides a few times to find its precise home position. But it should not take that long. In a well-aligned printer, it hits front, front -- right, right -- front, right, front, right, front, right, front, right. 12 bangs total, takes a few seconds (but still sounds a bit unhealthy...)
If you printer needs much longer to establish its home position, be sure that your gantry is squared and the belt tensions are correct. Updated instructions are here: https://help.prusa3d.com/article/adjusting-belt-tension-core-one_845048.
The new Release Candidate firmware 6.4.0 makes belt tuning easier by implementing a wizard and a stroboscope tuner using the built-in white LEDs; no more strumming and acoustic frequency measurements needed. Despite not being officially released, it works ok on the Core One. But with a newly built printer, maybe you want to stick with the production firmware for now.