Is there a PWM solution that can turn on the fan when the stepper drivers power up? To provide some cooling, I'd like to put a small fan near the board to get some air circulating, it only needs to run when the stepper drivers are on. PWM would be very hand in this case, then I can set it to 50% or so, whereas now if I hook up the fan it will be on full speed all the time which is noisy. I'm using an solid state relay for the heatbed which runs off a spare arduino pin, freeing up one of the ramps1.4 mosfets for the extra fan. https://reprap.org/forum/read.php?267,584817,584817#msg-584817 Fri, 11 Sep 2026 21:26:14 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?267,584817,585251#msg-585251 https://reprap.org/forum/read.php?267,584817,585251#msg-585251 TTN Repetier Mon, 16 Nov 2015 18:58:16 -0500 https://reprap.org/forum/read.php?267,584817,585208#msg-585208 https://reprap.org/forum/read.php?267,584817,585208#msg-585208
Thanks!

EDIT: worked :)]]> TTN Repetier Mon, 16 Nov 2015 16:33:08 -0500 https://reprap.org/forum/read.php?267,584817,585006#msg-585006 https://reprap.org/forum/read.php?267,584817,585006#msg-585006
should do. In config tool it is in features section.]]> repetier Repetier Mon, 16 Nov 2015 08:30:37 -0500 https://reprap.org/forum/read.php?267,584817,584975#msg-584975 https://reprap.org/forum/read.php?267,584817,584975#msg-584975
Though I can't seem to find the setting in configuration.h
Is it in configuration.h or where should I look?

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[captain-slow.dk]]]> TTN Repetier Mon, 16 Nov 2015 07:33:34 -0500 https://reprap.org/forum/read.php?267,584817,584873#msg-584873 https://reprap.org/forum/read.php?267,584817,584873#msg-584873 repetier Repetier Mon, 16 Nov 2015 03:25:18 -0500 https://reprap.org/forum/read.php?267,584817,584818#msg-584818 https://reprap.org/forum/read.php?267,584817,584818#msg-584818 TTN Repetier Sun, 15 Nov 2015 20:06:52 -0500 https://reprap.org/forum/read.php?267,584817,584817#msg-584817 https://reprap.org/forum/read.php?267,584817,584817#msg-584817
To provide some cooling, I'd like to put a small fan near the board to get some air circulating, it only needs to run when the stepper drivers are on.
PWM would be very hand in this case, then I can set it to 50% or so, whereas now if I hook up the fan it will be on full speed all the time which is noisy.
I'm using an solid state relay for the heatbed which runs off a spare arduino pin, freeing up one of the ramps1.4 mosfets for the extra fan.]]> TTN Repetier Sun, 15 Nov 2015 20:04:55 -0500