Hi guys!

Thanks to all for your help! It was quite a challenge but in the end I got values that work:
M92 X87.9328 Y87.9328 Z3980.

This will bring the extruder to exactly Y=140 and Z=10 (the biggest I could measure precisely).

So I'm happy again! Now, I will try to implement mesh bed measurement!

Again, accept my deepest thanks to you all and to this great community!
Ciao,
Bob

Great Ian!

You have saved the day, once again!

Tell me, now that I have spent days getting this old printer to work again, what do you think is the best value for a printer with a full sized bed today? Prusa I3 MK3? other?

In any case, thanks so much for all your kind help - I would still be struggling without you and the rest of this community!

Ciao,
Bob

Ian, Thanks once again!

We are getting close, but now the web control shows 2 fans:

The sliders both control the part cooling fan...

Is this ok?

@droftarts
Hi Ian!
Yes, I remember all your pleasant help in our exchanges when I was building the Huxley Duo which I got from reprappro uk!

Thank you once again for all this new help!!!

I used your template to generate the sys files and then tested them on the machine.

I've attached my template and config files:
config.json
config.g

I had to make a few changes, which I did very carefully so as to not crash the extruder. In particular, the direction of the drives needed to be updated. Also, I set the Z homing to the center of the bed.

Now I wonder what changes you made to the fan? I see that this is the "part cooling fan", which previously came on by magic when the part being print was small, I think.

Now, in testing I see that the fan comes on full speed as soon as the extruder temp passes 45C.

You mention that I need to "move it from an 'always on' pin to a PWM controlled fan output" - what does that mean?

I wonder if this is correct as is, or if it will over cool parts ?

All the rest seems good, ready for a printing test!

Thanks so much!
Cheers,
Bob

@dc42 Thanks, once again!

By the way I do have the 4.7K resistor on my Duet 0.6.

I'm concerned by how to properly map the motors on the Huxley Duo? The physical is:

• 2 Z motors
• 1 Y motor
• 1 X motor
• 1 extruder motor
• 1 Y end stop
• X and Z use the modulated IR prob to home
• 2 extruder fans

cf. wiring diagram

Does that mean the the drives are?

• 0 extruder
• 1 X motor
• 2 Y motor
• 3:4 Z motors

My original config.g contains
M569 P0 S1
M569 P3 S0
M569 P4 S0
but no M584 mapping the drives...

But really, I just don't have enough understanding and cannot find my way through the docs. Also, the config tool doesn't seem to allow for multiple motors for the Z axis...

Another question I have is that in the bed.g file I see the M561 to clear any bed transforms. What exactly does that mean? and how do any "transforms" get back, if needed?

@DocTrucker Thanks for that tip!

But, first I would like to make a correct set of config files.

Would anyone have a template for the Huxley Duo? I've tried to use the config builder tool but starting from scratch is quite difficult since I don't know what I'm doing.

I made an attempt using an omerod 1 template, but I have no way of knowing if the results are okay or not.

Alternatively, I could try to adapt my existing files, but again, I am really at a loss. If anyone is interested in helping with the adaptation route, my current sys files are uploaded here:
config.g
homez.g
homey.g
homex.g
homeall.g
bed.g
resume.g
pause.g

I'm really almost there, but it is quite challenging!

Again, thank you all for your great support!
Ciao,
Bob (confined in SW France...)

Hi guys!

Thanks to all for your help! It was quite a challenge but in the end I got values that work:
M92 X87.9328 Y87.9328 Z3980.

This will bring the extruder to exactly Y=140 and Z=10 (the biggest I could measure precisely).

So I'm happy again! Now, I will try to implement mesh bed measurement!

Again, accept my deepest thanks to you all and to this great community!
Ciao,
Bob

@dc42

I can't understand why the axes don't match their real dimensions any more..
M92:
Steps/mm: X: 80.000, Y: 80.000, Z: 4000.000, E: 641.000:641.000:641.000:641.000:641.000:641.000
but when I send the head to X=140
I measure: X= 128mm

Any help woud be greatly appreciated...

@dc42
I did post them already.

In the meantime, I have made quite some progress. There are many changes in what is needed in config.g and homex.g files !!!

Now I can effectively, home all axis, but it seems that the firmware has a new value for number of steps per mm in X,Y,Z?

I repost my current files, but I need a method for callibrating the x,y,z movements, if you have one?

config.g
homex.g

Great!
So I updated to 1.26.1 by using the web interface to upload RepRapFirmware.bin then updated the firmware via the web interface.

I then copied the DuetWebControl-1.22.6 directory hierarchy to the SD card and restarted.

I see that the URL for the Duet now has a .lan name.

It seems to be ok, but I could not home any axes and got the message

G28 X
Error: G0/G1: insufficient axes homed

As per FAQ, I put the M564 H0 in config.g to allow movement before homing.

This allowed me to home the Y axis (with end stop) but not the X axis (uses IR sensor). The X homing moves the head a little to the left then stops. Then it sets X position to -15 and no longer allows me to move the head left, even though it could be anywhere on the x-axis.

So I am stuck. Perhaps I need to further modify the config.g and/or homex.g files (attached) ?

Any help would be greatly appreciated as I am completely blocked, sigh.

Thanks again,
Bob

@dc42
Thanks ! You may not remember, but you've been answering my electronics questions for nearly 10 years now Thank you so so SO much!

Just the last questions for today: Can I just click on upload system file, choose RepRapFirmware.bin, on web control v 1.19 and the upgrade will happen by magic? (Then I will put the new web control files on the sd card manually).

Are then any changes needed in the system files (*.g) ?

Stay well!
Cheers,
Bob