DOH!!!!!!!!!!!!!!!!

Often it is the obvious mistake that will only get picked up by another set of eyes.

Thank you Phaedrux it is all working as advertised again.

@Phaedrux

i updated the first post with a link to the image. sorry about the quality of the first one. didn't know it was bad. i read somewhere that a duet2 running RRF3 wont work. however, there was a testDWA.py file inside the TAMV folder that was able to detect my duet2wifi RRF3 board when i entered my IP manually and it was able to display the correct X Y and Z position which i found was odd considering my machine is not a duet2 on RRF2 or duet3 on RRF3.

@nedmo

Glad to hear you got it sorted.

Frederick

Thanks. I do have an account from a while back. I'll try access it. I have access to CAD through my job

Thats great i'll give that a try, just asnt sure if there was an order in the code that meant it had to be a specific place 🙂

I wonder how feasible it would be to do a dual extruder version of this conversion. Is there a mirrored version of the Hemera?

precision piezo is probably the best I've tried, just very stressful... building a 3d printer is already stressful per se, so at the end I decided to just use a high precision switch (the head catches it with magnets). Very happy with it.

@Hiroaki Sorry again.
I have also checked both files in my 1st printer.
Both values were correct.
I can't get when it's changed in my second printer....
Thank you very much!

Non-sense. Happens to the best of us.

Hi, I know this problem is quite old, but I finally found out how to solve this, and did not know where else to share it. The piezo signal is very sensitive to electromagnetic interferences. The solution is to shorten this wire as much as possible and as far as possible from the power wires (heater, stepper motors...). A shielded wire may help maybe. So as a conclusion, place the PCB amplifier as close as possible to the piezos and protect the link between the piezos and the amplifier from electromagnetic fields as much as possible.

Also, here is the schematic i have made (pardon the sideways power ports):
c32e1843-6e5a-4b23-946d-d8d8ba3da4a4-image.png

@chop with s1 its enabled. Without anything ots disabled

@chop here's my wipe.g but is machine specific, you will want to make your own

if !move.axes[0].homed || !move.axes[1].homed echo "X and Y axes not homed, aborting the wipe" M99 if state.currentTool < 0 echo "No tool loaded, aborting the wipe" M99 if heat.heaters[tools[state.currentTool].heaters[0]].current < 200 echo "Extruder too cold, no point wiping, aborting the wipe" M99 ; Drop all motor currents down M400 M913 X30 Y30 Z25 M83 ; -135, -116, 115, 125, ; ,104....++++++++++++++++++++++.... ; ....++++++++++++++++++++++.... ; ....++++++++++++++++++++++.... ; ....++++++++++++++++++++++.... ; ,63 ..|.++++++++++++++++++++++.... ; ..|.++++++++++++++++++++++.... ; ..|.++++++++++++++++++++++.... ; ,30 ..|.++++++++++++++++++++++.... ; ....++++++++++++++++++++++.... ; ....++++++++++++++++++++++.... ; ....++++++++++++++++++++++.... ; ,-112....++++++++++++++++++++++.... ; .............................. ; .............................. ; ,-121.............................. G0 X-115 Y65 F9000 while true G0 X-135 Y{65 - iterations * 3} F7000 G0 X-115 Y{65 - iterations * 4} F5000 if iterations == 6 G1 E-3 F3000 if iterations == 8 break M98 P"park.g" ; Return all motor currents to 100% M400 M913 X100 Y100 Z100

and park.g

; drop motor curents M913 X30 Y30 Z25 ; go to park position G0 X-135 Y40 ; restore motor curents M913 X100 Y100 Z100

Hi, do you have schematics and such available for this board? It looks like it could be useful for something I'm doing.

@stuartofmt said in Precisionpiezo Problems:

@arhi - Thanks for the clarification. At $35 for a new BLTouch and my currentl hourly rate working on PP (about 35c per hour) .... well - you get my drift 🙂

yes, that is why I'm not using it for new printers 😞 ..it's a great idea but...

@stuartofmt said in Precisionpiezo Problems:

I'm curious now as to the difference between Zesty Nimble and flex3drive but that's a different thread 🙂

in 99.9% cases, this question leads to a flame war and lock of a topic so I'll restrain myself from commenting. I heavily tested both and can give you my own opinion (not affiliated with any of them) in private chat if you are interested

They are fragile. I've lost one in a head crash with the print once. Treat them gently like the precision measuring device they are and you'll be alright. Once installed, make sure the leads are secured for strain relief during operation and it'll be fine.

Pulling my hair out a bit. I've started a post here that may be useful as you progress.

https://forum.duet3d.com/topic/18966/precisionpiezo-problems?_=1601500980292

Voltages up to 3.3V would be measured. Anything larger wod read the same as 3.3V. You could use a voltage divider to extend the range, but bear in mind that there is a 27K pullup resistor between the input pin and +3.3V.

Analog Z probes are not supported on Duet 3 expansion and tool boards.

@tracar said in BL-Touch and two endstop switches:

G1 H1 Z-905 F400 ; home Z axis
G1 Z5 F800 ; go back a few mm
G1 H1 Z-905 F100 ; move slowly to Z axis endstop (second pass)
G90 ; absolute positioning
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
G91 ; relative positioning
G1 Z10 F800 ; lift Z relative to current position
G90 ; absolute positioning

You're using the commands to home Z using an endstop here. You should be using G30 to call for a Z probe move. Position the probe with a G1 X Y move first.

See the examples here: https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z

If you have further questions, please start a new thread.