Topics created by Tricep terry

@chrishamm that indeed did the trick. It also fixed the issue with the order of powering the device. Many thanks.

@Tricep-terry that's basically the way to do it. Make sure the relay is switchable with 5V. You may need to invert the pson pin depending on wiring and type of relay

@dc42 many thanks for the response, the panels / enclosure is anodized aluminium, which is not conducting, so the gx-12 are not really in continuity with the enclosure (at least in a reliable sense), maybe if I would screw them overly tight it would. However, the enclosure is floating and no AC is coming in but only 24v DC, so grounding the whole enclosure is not necessary as far as I'm aware.

The power supply I'm using only outputs a floating DC voltage
(class 1) through the barrel jack connector, therefore I'm a bit confused about your last command. Would the shield still work/be effective if it is only connected to the negative terminal of the floating 24v dc PSU as in the following image:

clarification-wiring-question.png

To me, it just looks a bit odd..

regarding connecting it to the stepper motor body, I've encountered many conflicting opinions on various build forums.. with many people saying you should only connect it to one side (controller side) so I'm still a bit in doubt about what to do with it.

won't hurt, but if you're trying to stop a USB ground loop, isolating the USB cable electrically is enough.

@Tricep-terry No, there aren't any other 5V PWM pins on the Mini 5+.

However, if you have a spare fan or heater output, you can use the MOSFET (which are on the ground side) to control a 5V input and make it a PWM signal, with the addition of a 1kohm pullup resistor. See https://forum.duet3d.com/post/118283 (thanks again @DIY-O-Sphere )
This is used to control a servo, but it can be used for any PWM output.

Ian

@fcwilt I see, strange that I never noticed this before, thanks for the clarification

@OwenD many thanks for the clearly written explanation with examples, definitely going to give this a shot in the next few days!

@Tricep-terry currently if a command that has axis parameters such as G1 refers to axes that don't exist, those parameters are ignored. In a future version of RRF we may generate warnings when a command has unused parameters.

@Tricep-terry said in Discrepancy between speed limit between duet 2 and duet 3 mini:

Also after start up, sending a G91 G1 X10000 command does not move the axis at the max speed set in the config file, but sending for example G91 G1 X10000 F500000 will perform just fine (F500000) set as the max speed

RepRapFirmware doesn't use the max speed set by M203 for moves immediately after config.g has run at start up; it uses a default speed. I think the default speed is 3000mm/min / 50mm/s. The speed for the Machine movement buttons in DWC is specified on Settings > Machine-Specific.

Ian

@tricep-terry we hope to release RRF 3.4.1rc1 within the next day or two, and that version no longer produces the virus warning. However, that won't fix the underlying issue, which is that Windows is repeatedly trying to download some sort of update file from the Duet. At best this will slightly slow down your PC and the network.

@tricep-terry that's good news, thanks for telling!

@tricep-terry just a hunch after they changed where the firmware files were placed. When the firmware won't downgrade, the IAP file is usually the cause

If you're not using the drivers you can disable them with M569 P# R-1 where # is the driver number. I think that should stop the warning.

https://duet3d.dozuki.com/Wiki/M569

@dc42 I will try today as well. pleased to screen-record the console of the duet web control application and run three replicas to see if it happens at the same time timepoint.

Max

@Tricep-terry, if you connect the 100 ohm resistor supplied with the daughter board to the two middle places of the terminal block in place of the sensor, what reading do you get?

To flag the additional axes as homed, use G92 commands. For example, add this to the end of your homeall.g file:

G92 U0 V0 W0