Topics created by RockB

I'd suggest re-tuning it from dead cold using M303 T0 S230 to tune it as a tool rather than just the heater. This will incorporate the cooling fan a well.

@RockB said in Heater Fault - Temperature raising slowly:

;M307 H2 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #2

Was this your previous tuning results?

@RockB Probably something like

; values are machine position from camera calibration var t1X = 0 var t1Y = 0 G1 X{var.t1X} Y{var.t1Y} F1000; Move to camera calib position G1 X{var.t1X-7.95} Y{var.t1Y-47.9} F1000; move to secondary position

@RockB @droftarts @dc42 any suggestions?

@droftarts Tested this and works as expected. Just changed the 2K resistor to a 2.7K resistor to limit the overall current below 10mA. Thanks

@RockB For the US Digikey and Mouser are great options (there are more!)
https://www.digikey.com/en/products/detail/molex/0436450308/4247419
https://www.mouser.com/ProductDetail/Molex/43645-0308?qs=1uvhzzitxfhjsp6NZN%252BXjw%3D%3D

@dc42 Looks like the roto tool board was running an older version (3.5.0 rc1) of the firmware. After updating the firmware to the latest 3.5.2 everything works as expected.

@gloomyandy This makes sense given out1 is PWM switched to ground. Measuring the voltages between V_IN and out1 gives the correct voltages with M42 P5 S0 and M42 P5 S1.

I have changed my connections as follows to make it work:
(+) of Air Solenoid --> out1 V_IN on OUT 1 in Tool RR
(-) of Air Solenoid --> GND out1 on OUT 1 in Tool RR

@RockB Yikes, that's poor. The assembly company must have had the trainees on the tools that day! Yes, no problem, we'll replace under warranty. Please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out.

If you don't want the hassle of waiting for a replacement, and you're comfortable waving a soldering iron around, I'm happy if you want to clean up the solder yourself, and we'll continue to honour the warranty. Though it would be good to get that board back and show the assembly company!

Ian

@RockB the answer is available in this thread:

https://forum.duet3d.com/topic/36183/duet-3-motor-23-cl-torque-curve?_=1725438247537

@RockB

Looking at the pin-out of M23CL, I see two pairs of CAN_L and CAN_H (one each for incoming and outgoing I think). I can daisy chain the outgoing pair to the incoming pair of another motor.

Yes, that's correct.

Should the motors be wired in-between the other boards on the CAN bus or be used as the last device on the bus? Is there a termination resistor built in?

The 23CL is supplied without CAN termination, so is easiest to use between other boards. If a 23CL needs to be the last device on the bus, there is a solder jumper on the PCB inside the motor to enable termination, but you would have to take the rear cover off the motor to access it. We recommend using external termination if the 23CL is the last device on the CAN bus. Connect a 120 ohm resistor between the pins on the 'outgoing' wire pair, between CAN_H and CAN_L.

The documentation says "Multiple M23CLs can be connected to the bus, either via an M8 Y splitter or a distribution board/box". Is this available as a product? Any wiring diagrams would be appreciated

M8 cables are pretty widely available. Generally, you can use 4-wire M8 cables. What kind you need will depend largely on your application.

T splitters (not Y splitters, they tend to have the wrong connections) with 4 positions on all connectors such as https://www.te.com/usa-en/product-T4082102004-000.html (widely available from Mouser/Digikey/RS/Farnell etc) should work. Plugging in with the middle connector of the T will obstruct the 23CL power connector, so either use the other female connector of the T, or have a short jumper cable between the T and the 23CL.

For 'distribution board/box', you can use the Duet 3 Tool Distribution board, and wire each 23CL in the same way as a Toolboard 1LC. Bus termination can then be done on the Tool Distribution board.

I'll add the above to the 23CL documentation.

Ian

@RockB said in Using Roto Tool board for other extruders:

@RockB said in Using Roto Tool board for other extruders:
Any issues setting extruder current to ~1.6A in Roto Toolboard? (M906 E1680.00) for the pellet extruder? or better to use T1LC for this?

The maximum current you can set the TOOL1RR to is currently limited to 1.0A in firmware. It's a 1-line code change to increase this, and during testing we had it set to 1.6A.

At 1.6A you will need to fan-cool the tool board. The TMC2240 driver provides a temperature read-out, so you will be able to monitor the temperature to see if this is viable in the long term.

@RockB the Roto tool board has a dedicated output for LEDs and enough 5V power for a strip of reasonable length. The 1LC can only drive LEDs from the IO0.out port (which is not available if you use a BLTouch) and normally needs external 5V power, although it should be good to drive a single RGBW LED.

@RockB Have some on the way, ETA any day now. https://www.filastruder.com/products/duet3d-ldo-nema23-closed-loop-stepper-motors

@RockB you could connect the 0-10V output to a potential divider to scale it back to 0-3.3V, feed it into an analog input on the Duet, and then configure a Linear Analog Sensor in RRF to take the measurement.

@RockB said in Rotary axis feedrate calculation:

set rotary axis for infinite rotation

The M208 is the smaller problem. M208 XYZ uses print area limits in mm traditionally (because they were used for linear axes). M208 A is then e.g. in degrees, but it's not possible to set XYZ degree limits for XYZ rotary axes. This is solved for kinematics with XYZ rotary axes by other means, e.g. dedicated angle limit parameters. Not specifying A limits will probably solve the problem.

But as said, this is the smaller problem. Main problem, if you plan to have an actuator which runs all the time, is, that RRF is not designed this way. Every stepper needs to be planned in a fixed time frame, i. e. needs to end. So an unlimited movement is not possible.

There is a thread discussing whether RRF can be extended to support unlimited movements. Another possibility is to install a stepper outside of RRF with unlimited movement and control start/stop with RRF.

If you meant turning an axis more than 360 degrees with infinite, there was the thread https://forum.duet3d.com/topic/17169/what-s-the-best-way-to-set-up-a-continuous-rotation-for-an-axis?_=1592982351701
This movement will however stop after the time frame, however.

@RockB said in NPN Inductive Proximity Sensor as an axis End Stop:

Just to confirm, only one pin (io[#].in) is used out of the 5 pin IOs.

Yes, that's correct. You can still use the other pins on the io connector if you want/need.

When connecting sensor (+) and GND to PSU, it should be the same PSU powering the VIN in duet right? to maintain common GND

Yes, or if using a separate PSU, tie the PSU GNDs together. You could connect the sensor positive to V_FUSED from an unused heater output, or from the fan power jumper selector (if accessible) or a fan header (with fan selector on V_FUSED) assuming the probe doesn't draw much current (please check first!), which would offer a bit of protection with the fuse. You can connect GND to the ground pin on the IO connector.

Ian

@T3P3Tony Thank you for the clarification