Topics created by paolozampini1973

@paolozampini1973 If you printed a 'calibration cube' and adjusted the steps per mm or XYZ scaling based on that, it's not a great way to calibrate your machine. This doesn't take account of extrusion. I recommend using something like the 'califlower' from Vector3D https://vector3d.shop/products/califlower-calibration. Well worth the couple of £/€/$. Gives internal as well as external measurements, so over/under extrusion can be ignored and/or calibrated later.

Ian

@paolozampini1973 said in MCU Temperature duet wifi:

MCU Temperatura Volevo sapere come accendere la ventola quando MCU Temperatura supera i 40° perche adesso e sempre accesa

Please share your config.g to show how you have the fan and temp sensor configured currently.

@oliof Thanks everyone for the information

works for me on Cura 5.6 (and worked on earlier versions too).

@jay_s_uk said in UPDATE VFD TO NEMA:

@paolozampini1973 what @Falcounet said. And the firmware doesn't support continuous rotational axis. And you can't move an axis that isn't in sync with others

Thanks for your answer

@paolozampini1973
I think what that means is the memory within the Duet2 doesn't have adequate capacity to store the additional code required.

@paolozampini1973 marocco vs spain, marocco won. My country germany is out.

@T3P3Tony said in instant extruder speed:

@paolozampini1973 unfortunately not, this display relies on information from the newer firmware.

OK

@paolozampini1973 said in ERROR update firmware:

@droftarts what I'm building now then to build a lathe mill a machine that you can TONIRE and also has a milling cutter what I was wondering is that the Spindle How should the Spindle be configured Sara with a nema 23 ho 34 motor that spins a Spindle k12 -125 Connected with the belt

Best to create a new thread with your question in the CNC forum.

@paolozampini1973 asking is never a problem, even problems you remember later that you knew it.

I myself thought about using spindle for 3D printing, that's the reason why I know the answers immediately.

@Phaedrux said in DUEX 0.11:

I can't see any damage. It's a mosfet, so you can test it with a multimeter, but be very careful not to short anything out.

https://www.youtube.com/watch?v=tL7bQuJaXKA

Thanks for the answer. You are always available and always pay attention to me

@jay_s_uk said in RFF 3.42 extruder change:

@paolozampini1973 you have more than 1 tool defined though. you don't need to have a physical toolchange to have different tools

So what do you think I should do delete them?

@phaedrux thanks I solved I simply got a command wrong on the silicer

@chrishamm said in RFF3.42 display the extruder speed:

DWC 3.5.1
DWC 3.5.1 works of love to upgrade because I know there are a few things to replace I have the version 3.4.2
I'm not aware of how many things you'll then have to reset

@phaedrux before I had made this type of setting because the two EXTRUDER are THE WIRES ARE CONNECTED E0 = DRIVER 3 and E1 = DRIVER 4 M584 X7 Y8 Z1:2 A5 B6 E0:1 S0 and the engines don't turn, they don't work to make it work I had to change the configuration leaving the wires connected E0 = DRIVER 3 and E1 = DRIVER 4 with this type of command M584 X7 Y8 Z1:2 A5 B6 E3:4 S0
and now they work well but I can't understand why they work these have come out that they are on the expansion card DUEX 0.11 CONFIGURED IN DUEX 2
E3 = DRIVER 6 AND AXIS B WORKS CONNECTED
E4 = DRIVER 7 IS DISABLED FOR EXTERNAL AXIS X
E5 = DRIVER 8 AND DISABLED FOR EXTERNAL AXIS Y
E6 = DRIVER 9 IS DISABLED NOT CONNECTED NO AXIS IS FREE
So how does it work and also works well?

then another question the cooling fins on the drivers I no longer have them installed Also because there are two 120mm fans if you remember I had problems with temperature error since I installed two 120mm fans I have not had any more problems
WHAT DO YOU THINK ABOUT IT?
Speaking of problems I have a problem with F7 no longer working the fan works I tested it on F8 and it works well but output 7 no longer works as never what advice can you give me?config (40).g

@paolozampini1973 ah yes, so they are. Missed them!

@norder said in duet wifi 1.04 USB is not detected:

@paolozampini1973
Is the USB cable connected directly to the computer or to a USB hub?
Always connect directly to a computer, not to a hub.

If the cable is connected directly... have you tried a different USB port or maybe even a different computer ?

P.S.:
Are you sure that the heatsinks on the driver chips are not touching any other components on the board and possibly causing a short circuit ?

yes and cable is connected directly to the computer and obviously everything is disconnected as in the picture

@paolozampini1973 said in resolution accuracy:

I would like to do a theoretical calculation of the precision of an axis with nema 1.8 ° M350 = 16 4MM SCREW

OK, this math is easy:

You have a 1.8 degree-per-step motor. That's 360/1.8=200 steps-per-revolution. You are going to do 16 microsteps-per-step so you'll be doing 16*200=3,200 microsteps-per-revolution. You have a machine that moves 4 milliMeters-per-revolution, so if you move 1/3200 revolution your machine will move 4/3200 = 0.00125mm per microstep.

Now, that's what the MATH says.

Real stepper motors do not turn 1/16th of a step for every microstep. They move something between 0 and 1/16th of a step per microstep. WHAT??? But that means I don't gain any resolution by microstepping. Yes, you gain noise and vibration reductions, and maybe a little resolution, but don't depend on it.

So, your system will move somewhere between 4/200=0.04mm and 3200/200= 0.00125mm per microstep.

This is the math of the system. a real system will not move precisely and accurately, so you will need to measure the actual performace of your system.

Things to lookup when learning about this:

Backlash Axis sag leadscrew accuracy and precision Carrier following accuracy

There are about 100 things that affect the accuracy and precision of a mechanical system. They are all important and interesting.

I hope your needs are to be able to position something to within 0.1mm of where you want it to go. That's a reasonable target.

external axis I want to calculate M92 = 99.975 exsternal driver and set to 400 M350 = 16 4MM SCREW I WANT TO KNOW THE PITCH AND ACCURACY CORRESPONDS

I don't know what this means.

@fcwilt said in big problems on the nozzle temperature:

@paolozampini1973 said in big problems on the nozzle temperature:

I would like to have an algorithm without compromises it must be absolutely perfect

Why must it be absolutely perfect?

The current system meets the real world needs of FDM printers.

What are you unable to do with the current system?

Frederick

Thanks

@oliof said in DUEX 0.11 FAN 5:

@paolozampini1973 after you update to 3.4, you can try heater feedforward https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m309-set-or-report-heater-feedforward which raises the heater power for higher speed prints.
Alternately you can adjust the heater fault detection using M570 https://docs.duet3d.com/User_manual/Reference/Gcodes#m570-configure-heater-fault-detection but since this is a critical safety feature I would only use this as a last resort. It does allow you to adjust the excursion limit as you requested.

Thanks for the very kind reply