Topics created by sparkymark79

@sparkymark79 said in Cannot get the print fan to come on:

M106 P0 S1 I0 F500 H1 T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

You have both fans set to thermostatic control.

Our intention is that you use Fan 0 for the print cooling fan and Fan 1 for the heatsink fan. This is easiest to set up in firmware, and is how the firmware uses the fans by default.

What is the rated current of the extruder motor?

@sparkymark79 glad that was it man.. lol, between the fb groups, forums, and github repos I regular... I have probably seen people with this problem close to a hundred times at this point.. I still have the manual with the incorrect(but seemingly correct-looking) layout.

That's right. Apologies, I had intended to copy and paste the whole line, not just the number!

You should get somewhere in the right region with 96. I'd still recommend you fine-tune the extruder after doing that though. There are loads of tutorials on how to do that, including Thomas Sanladerer's here:

https://toms3d.org/2014/04/06/3d-printing-guides-calibrating-your-extruder/

On the Duet, you can send an M92 command while the printer is running. e.g.

M92 E96

and you can see the results straight away. Use a guide like Tom's to get the figure as accurate as possible, then modify your config.g with the new value.

adavidm

The cause is probably the same as https://duet3d.dozuki.com/Wiki/FAQ#Section_When_my_print_finishes_it_retracts_all_the_filament_out_of_the_printer.

increase the H param on your M558 line (Temporarily) to say H30 and try again sounds like you have your Homed hight set a little high in your M665 line and that is what is causing the initial head crash.

HTH

Doug

@danal Thanks so much for this, going to get cracking once the kids are in bed.

I actually just retrieved the rod length stickers out of the bin after you mentioned it included the ball measurements too. Thanks for that!

I'm lucky I have a second printer as I've used it to print off the print cooling fan shroud and also a 40mm hot end fan replacement after I put my thumb through the e3d provided stock fan and fortunately had a 40mm fan spare. Whoops!

Thanks again, I'm sure I'll be back 😉

P.S.: Regarding the pull-test: It is even advised on the packaging of the PA-20 to do that after having crimped only the pair of wings that will hold the cable. I did not pull as hard as I could but I wasn't particularly easy on them either - and in this case there will be no pulling force on these cables ever except I decide for some reason to pull out a plug by pulling on the cables instead of the housing (which I try to avoid).