Print fan dead? What other parts should I have on hand?
So have had my last two prints fail with a print fan error:
https://help.prusa3d.com/en/article/err-print-fan-error_2159
Setting the fan to 255 I get an RPM which is often sub 1000 so I believe it's just died and I need a new one.
Problem is I'm in New Zealand and the bottom of the world and so shipping makes me not want to just order a single fan (shipping is $30 for a $7 fan). I found a local seller, who is charging $30 for the same part so not excited about giving them my business either.
Given that I want to minimise my shipping what other parts would make sense to have a spare of? Is there another option for sourcing the print fan?
Setting the fan to 255 I get an RPM which is often sub 1000
Slightly odd, they usually die completely...
Two things to try:
Clean the fan, both sides of the blades - use a stiff paintbrush - and the hub; in particular fine sections of stringing can get into the bearing and slow things down, you may need to use a needle and a magnifying glass to tease it out.
Lubricate the fan, iIrc you can get to the back of the hub by peeling back a sticker, use a single drop of light oil.
Cheerio,
RE: Print fan dead? What other parts should I have on hand?
There is an option in the control panel to disable fan checks. Be careful what you ask for, if you set it! 😉
As far as what parts to have on hand, I have a 'crash kit' for the Prusa that has things like a couple lengths of drive belt, a complete spare hot end, an Einsy board, the spare hardware from the assembly, hex keys, nozzle wrenches, acupuncture needles, and printed parts for the extruder in the event I have a blob of doom and a meltdown.