@dc42 Thanks

Guarda onestamente non so più cosa dirti.... hai collegato correttamente il motore?? È possibili che vibri perché hai collegato male gli avvolgimenti motore male? Misuralo con un tester... se hai cablato male quella parte il motore mette in movimento entrambe le coil e quindi il motore vibra....

If the problem is only when going up, that suggests that you have too little motor current set to overcome the load, or you have the Z acceleration set too high.

Ok. Think I got it figured out. The problem was in the top of the config under the delta config. The height was set to 400. I replaced this number after having done a homing, so I could see what my real height is. Funnily enough it says in the config it’s to replaced and was set artificially high.

This is now my new line;

;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.
M665 R162 L268 B85 H295.75 ; Set delta radius, diagonal rod length, printable radius and homed height

Great!
I already have 3 1.02 running ... so maybe it’s time to get a 4th printer

@puppet172 said in Z probe Detects bed but doesn't stop:

This is my Z probe
https://www.amazon.com/gp/product/B00S50O152/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Which mode do you think will be best?
I am thinking 1 or 2 but I don't know

The answer is in the wiki page that I linked to.

Good catch, we haven't documented the available GPIO pins for the Maestro yet. Try P64 in the M280 command.

@dc42 The only person using concrete printer I know is Kulitorum. Very interesting. For my next house I will contact him 🙂

The mathematical challenges become bigger and bigger with more axes, but at least the future remains interesting.

@nz_andy said in External drives and extra endstops:

Just single end stops per axis, we have one motor on the z, 2 on the y and 1 on the x as is a lead screw driven gantry style and the two y motors are also physically linked so they can't get more than a few steps out of sequence when power is off. (so don't need two end stops on the y) The Duet drivers are really nice and do drive one y motor no problem.
Can I use two duet drivers as simultaneous drivers?

OK, so you need only use the standard X, Y and Z endstop inputs (or just X and Y if you use a Z probe for Z homing).

To use multiple drivers for an axis, see the M584 command in the GCodes wiki page.

Got to say I have been real impressed with the duet and ease of use so far.

Thanks!

What might work is to set a low auto resume setting initially, then use a G4 delay command to allow the system to prime itself, then increase the auto resume voltage.

I guess I could allow the system to prime itself when the voltage exceeds the power loss threshold by 0.5V or something like that.

I answered the first question in your other post a few minutes ago. Regarding the second question, see https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_NPN_output_normally_open_inductive_or_capacitive_sensor.

Thank you! I didn't see it in the getting started wiki 🙂

So all back up and running. 🙂

Just to mention that despite the widespread damage the PT100 daughterboard survived. 🙂

I had a similar issue at first. The pin ended up being a little dirty and would stick a bit causing it to go into error immediately at startup because it couldn't drop consistently. I ended up taking the pin out and cleaning it with a bit of alcohol and some high grit sandpaper. It moved smoothly after that.

@enix you can access the I2C bus pins from the Duex expansion header as well:

0_1529358180020_5b49d258-d37c-476c-90a7-3d2b7e841973-image.png

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

When I tried heater 3 the first time I was still using I1 instead of I0, so I tested this again and I was able to get it working with heater 3 and PWM1

I tried heater 7 and PWM5 again, that still isn't working. I may test some of the other configurations just to see if this is isolated to that connector, but I don't have any plans to use heater 3, so I might just call it good as long as everything is working.

Thanks!

yes i tune PID and its work fine but if i turn on fan then my fan duct cool hotend and duet stop my print.

C87 is connected between one of the Z motor outputs and ground. Its purpose is to help protect the Z driver if the motor is disconnected when under load, and to reduce EMI. Revisions 1.0 and 1.01 of the Duet WiFi didn't have those capacitors.

If you want to replace it, it is a 1nF X5R or X7R 0603 ceramic capacitor rated 50V or greater.