@dc42 Yes thank you that makes sense, sorry that you needed to answer this trivial question.

Are you saying that the PT100 doesn't function when the PanelDue ribbon cable is connected?

You may need to remove the PanelDue controller board from the display before programming it, because typical USB ports can't supply enough power for the 7" display.

Yes it is.

@edchamberlain If you use DWC go to Settings | System Editor menu option. From there you can modify all configuration files.

0_1525514301972_Screenshot from 2018-05-05 13-57-40.png

@dc42 said in add two nema 23 in series:

@danal said in add two nema 23 in series:

Series takes same current, but cuts torque at each motor in half.

Parallel draws double current (quite often beyond capacity of a single driver).

Best way on Duet is almost always to use one driver per motor, and configure to make them work together.

No, series gives you the same torque at low speeds - unless the motors have unusually high resistance - but the maximum speed you can run the motors at before the torque starts to drop is halved. There is a calculator at reprapfirmware.org to work this out.

Aha! Thank you... I almost didn't post that, something didn't quite feel right.

Excellent clarification.

@dc42

Thanks for your help!

Just to updated, we haven't done the cooling portion yet but we wanted to let you know about the DC regulator you recommended.

So when we heat up to say 40degC, the peltier only receives anywhere from 7V to 10V, so it's not like it is receiving the full 24V. Because of this we haven't used the peltier yet. Just to let you know

@pablo said in Going to plug external driver:

i have the same problem. I going to connect 2 nema 23 to Z and 2 nema23 to Y. which driver you recommend guys ?? please try to recommend something cheaper than the leadshine ESD 508... thanks !!!

If they are rated at no more than about 2.8A then one possibility is to use a Duet+DueX5 or DueX2. There is a wide choice of 2.8A Nema 23 motors here https://www.omc-stepperonline.com/nema-23-stepper-motor/filter/146-rated-current-a,2.8.

Got the replacement DueX5 unit today from filastruder and all is working just fine! Problem solved. Thank you for the support here.

The parts you quoted from the GCode wiki at reprap.org are in the section headed "RepRapFirmware 1.09 to 1.14 inclusive", so they don't apply to current or recent firmware versions. From that same wiki page:

"RepRapFirmware 1.15 onwards

In RepRapFirmware 1.15 and later the M301 is supported as described above, but it is not normally used. Instead the heater model is defined by M307 or found by auto tuning, and the firmware calculates the PID parameters from the model. An M301 command can be used in config.g after the M307 command for that heater to override the firmware-computed PID parameters."

Yes that's all correct.

@dc42 said in Changing WiFi module:

ESP-07S

Oops, sorry. I did search but did not get a hit.

Thank you once again for your work and guidance.

@dc42 said in Endstop Wiring:

HT-225D

I have something very similar from eBay, but when I crimp it smashes the connector until it breaks

I have used DB25 for many projects over the years and your answer lies in the QUALITY of the connector.

Basically the cheap chinese connectors are not much good for more than half an amp once you have scraped off the vapor thin gold plating. Insert connector say 10 times and hey presto, no more good contact !

Even the name brands have dropped their quality so unless you source genuine known quality you will have some degree of trouble i.e. Your thermistor readings go noisey.

A good connector pin is OK up to a couple of amps but keep in mind the stepper generates high current spikes so you usually need a better sized pin than the DB series of connectors provide.

You don't need a M574 command for the Z probe, except in the unusual case that you are using the Z probe to home the X or Y axis, as a few printers do.

Glad to help!

my config.g has the M564 H0 in it.

things are moving now. but to be honest i am not sure what i changed to make it happen.. it just started working.. which is concerning.. as to why it wasnt before.

is there a buffer/cache that holds old settings

This is my current setup

M584 X5 Y6 Z7 U4 E1:2:3 P3
;
; Set stepper drives parameters for all the used ones
M569 P5 S0 R1 T6:6:5:0 ; X AXIS Drive 5 goes forwards (E2 on Expansion Header)
M569 P6 S0 R1 T6:6:5:0 ; Y AXIS Drive 6 goes forwards (E3 on Expansion Header)
M569 P7 S0 R1 T6:6:5:0 ; Z AXIS Drive 7 goes forwards (E4 on Expansion Header)

; Set axis dynamic parameters
M350 X1 Y1 Z1 U1 I0 ; Configure microstepping NO interpolation
M92 X200 Y200 Z200 U400 ; Set steps per mm
M566 X900 Y900 Z200 U900 ; Set maximum instantaneous speed changes (mm/min)
M203 X2000 Y2000 Z2000 U2500 ; Set maximum speeds (mm/min)
M201 X150 Y150 Z150 U150 ; Set accelerations (mm/s^2)

You don't need to put ferrules on solid core wires. The thickest wire the VIN and bed heater terminals will accommodate is a little over 3mm diameter, which would be about 9AWG.

I'm glad you like the Duet!

@dc42 Changed the cable supplied with stepper (!) with another one and it works.
thanks for your answer