Hi, I'm building my Frankenstein test machine running on Ramps 1.4, 24v, and Marlin 1.1.8.
On my 24v part cooling fan, anything below 90/255 on the PWM fan control the fans just make whine noises and not spin, 100/255 will finally kick them over at fairly high speed, once spinning I can dial the fans down to as low as 30/255 for less air flow.
My Taz 5 (that also runs 24v) used to have the same problem, but after it was updated to Marlin 1.1.5 by Lulzbot fans are able be controlled linearly across speed range, however Lulzbot does not publicly publish uncomplicated firmware so I am unable to look through and try to replicate it on my Ramps 1.1.8.
What do I have to change to get full speed control of my 24v fans?
Thanks
On my 24v part cooling fan, anything below 90/255 on the PWM fan control the fans just make whine noises and not spin, 100/255 will finally kick them over at fairly high speed, once spinning I can dial the fans down to as low as 30/255 for less air flow.
My Taz 5 (that also runs 24v) used to have the same problem, but after it was updated to Marlin 1.1.5 by Lulzbot fans are able be controlled linearly across speed range, however Lulzbot does not publicly publish uncomplicated firmware so I am unable to look through and try to replicate it on my Ramps 1.1.8.
What do I have to change to get full speed control of my 24v fans?
Thanks