Part fans no spinning on T1 and T3 on new e3d Tool Changer

Rushmere3D

Can you plug a working tools part cooling fan into the port of a non working fan on the control board side. This would see if the mosfet on the control boards are an issue.

rmilyard

@Rushmere3D This weekend I will put on a table I can work on it. I do the the fans do work with move them to other tools.

Phaedrux

Some photos of the fan mosfets would be helpful as well, as occasionally when they fail you can see clearly the chip is damaged.

rmilyard

Ok so I have my TC apart to test. Like said T0 and T2 work. I need to test T1 and T3. What command to turn them on?

Phaedrux

@rmilyard said in Part fans no spinning on T1 and T3 on new e3d Tool Changer:

What command to turn them on?

M106 P# S1 where # is the number of the fan from the fan definition section.

rmilyard

@Phaedrux

; Fans
M950 F1 C"fan1"
M950 F2 C"fan2"
M950 F3 C"duex.fan3"
M950 F4 C"duex.fan4"
M950 F5 C"duex.fan5"
M950 F6 C"duex.fan6"
M950 F7 C"duex.fan7"
M950 F8 C"duex.fan8"

M106 P1 S255 H1 T70 ; T0 HE
M106 P2 S0 ; T0 PCF
M106 P3 S255 H2 T70 ; T1 HE
M106 P4 S0 ; T1 PCF
M106 P5 S255 H3 T70 ; T2 HE
M106 P6 S0 ; T2 PCF
M106 P7 S255 H4 T70 ; T3 HE
M106 P8 S0 ; T3 PCF

rmilyard

@Phaedrux so M106 P8 S1 should turn T3 part fan on right? If so it doesn't work. I am plugged right into the duex 5

Phaedrux

Send these in turn to test all the fans

M106 P1 S1 H-1
M106 P2 S1 H-1
M106 P3 S1 H-1
M106 P4 S1 H-1
M106 P5 S1 H-1
M106 P6 S1 H-1
M106 P7 S1 H-1
M106 P8 S1 H-1

P# addresses the fan
H-1 turns off thermostatic mode so they can be manually controlled.
S1 sets them to full power.

Phaedrux

can you snap a close up photo of the fan headers on the duex? Sometimes there is visible damage to the fan mosfets.

rmilyard

@Phaedrux

Phaedrux

Ok, so please recap for me, since it's been a long thread.

When sending the fan commands I posted above, which fans do not work?

For the fans that do not work, you have tested the fans themselves in other working ports to confirm they actually work there?

rmilyard

@Phaedrux P106 commands for T1 and T3 don't work. All others do.

Phaedrux

@rmilyard said in Part fans no spinning on T1 and T3 on new e3d Tool Changer:

M950 F1 C"fan1"
M950 F3 C"duex.fan3"

So fan1 is on the Duet and Fan3 is on the Duex. Correct?

@Phaedrux said in Part fans no spinning on T1 and T3 on new e3d Tool Changer:

For the fans that do not work, you have tested the fans themselves in other working ports to confirm they actually work there?

Rushmere3D

@rmilyard So none of the T1 and T3 fans work? Not even hotend fan.

rmilyard

@Rushmere3D so think found issue. If I get the fans anywhere near the extruder the fan stops. I have not tried to steal washers and still doesn't work.

rmilyard

Fans need to be away from stepper almost half inche. Anything can think other than steel washers?

rmilyard

I have some zinc washers but ones I have are thick. Going order some from Amazon.

rmilyard

Thanks all for help! It was combo that my old harness had wire issue and these 2 fans needed zinc washer. Seems like fan working now.