G1 E- 100F2100 retract 100mm (instead of the normal 1mm) You could try changing the Custom Gcode, End Gcode The kit also provides a short length of PTFE tube. Watching on Octoprint, the hot end temperature has a few ups and downs at the start of a print (by a degree or so) and then settles into a steady state. I've done a couple of prints, and it is all good so far. Then re-ran Z adjustment for all my build plates. I did re-calibrate the PINDA probe after the install, to make sure it was at the correct height off the print bed. The little fan is totally silent - a good change from the noisy Prusa hot end fan. The way to test it is to check that it activates when the hot end reaches 50 deg C, and deactivates on the way down again. A Fan self test thus fails for the hot end. The Hot End fan uses only two pins of the three on the buddy board, (providing the 5V it needs) which means the Prusa firmware can't control it's speed since the PWM pin is unused. The kit includes a 5V step down circuit for the fan - that is not needed on the Mini. I found it better to install the print fan as soon as the hot end is in place, then I could deal with it's wires at the same time as everything else. If you have just followed instructions, all the wiring is wrapped and tied down at this point. At the start you remove it, and then it is not mentioned again until the very last step. The only thing I think they got wrong is the print fan. It's all pretty straight forward, except for the wiring - the Mini's buddy box is pretty crammed. I've attached a picture of the final product. I thought people might be interested in the Revo install on the mini.
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