Hello,
Going through the documentation, I couldn't find torque vs speed curves for this closed-loop motor. Is there any information on this?
Is the recommended operating voltage = 24V? The input voltage range is 12 to 48V and higher voltage = higher torque. Wanted to know what were the recommendations from internal testing
Posts made by RockB
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Duet closed loop motor 23CL - Torque vs speed curves
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Suggestion on wiring multiple M23CLs CAN-FD bus
Hello,
I am exploring using multiple closed-loop motors M23CL for my project and trying to figure out how to connect the CAN-FD connections. Planning to use 3 M23CLsCurrent setup: Duet 3 Mainboard 6HC --> Tool Distribution Board 1 --> Tool Distribution Board 2
Tool Distribution board 1 has four T1LCs and Tool Distribution board 2 has one T1LC board.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.
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 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
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RE: Using Roto Tool board for other extruders
@RockB said in Using Roto Tool board for other extruders:
- Most of the extruders I am planning to use (E.g. Hemera XS) are within the current rating (1.1A) and heater output rating of Roto TB, so I think I should be good there. However, One of the extruders I am using is a compact pellet extruder and the documentation says that driver current is to be set to ~1.6A in RepRap firmware. Can Roto TB handle this?
The documentation says that "Note further thermal testing may allow higher extruder current for Extruders other than the Revo Roto which should not exceed 600mA current"
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?
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RE: Using Roto Tool board for other extruders
@gloomyandy Had to design and build some custom mounts for Roto TB to work with other extruders. Connectors should be ok
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Using Roto Tool board for other extruders
Hello,
I am trying to decide between Toolboard 1LC v1.3 vs Roto toolboard for my custom tool changing machine setup currently under development. I plan to use some revo family of extruders (E.g. Hemera XS) and some other brands as well.I like the compactness, improved wiring, and LED output in the Roto toolboard. Comparing these tool boards, the main differences I see are:
- 1LC stepper drivers are rated for 1.6A peak, 1.1 RMS while Roto TB is 1A peak and 1.1 RMS
- 5A high current output at Vin for TB 1LC (120W @24V) and 3.4A output at Vin for RotoTB (80W at 24V)
- OUT_2 (3 Pin heatsink Fan) rated for 5V on roto TB while Vin possible on TB 1LC - I think I should be able to swap out 24V default fans with 5V Noctua fans
- RotoTB has a dedicated output for driving LEDs - I need this for my application since I am planning to use IO_0.out for something else
Questions:
- Most of the extruders I am planning to use (E.g. Hemera XS) are within the current rating (1.1A) and heater output rating of Roto TB, so I think I should be good there. However, One of the extruders I am using is a compact pellet extruder and the documentation says that driver current is to be set to ~1.6A in RepRap firmware. Can Roto TB handle this?
The documentation says that "Note further thermal testing may allow higher extruder current for Extruders other than the Revo Roto which should not exceed 600mA current"
The heater unit for the pellet extruder is rated at 70W, so should be good there.
- Although OUT_1 is meant for the part cooling fan, can it be used as a switch to turn on/off an air solenoid (24V DC and 2.5W rated)?
- What is the built-in inductive sensor (LDC1612) in roto TB typically used for?
- Are there any other major differences between these toolboards that I am missing?
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RE: Controlling LED through toolboard
@oliof thanks for the update. Is there any particular brand or part number of LED recommended? I am looking to address a single RGBW led to indicate status of hotend. Would something like this work?
https://www.adafruit.com/product/5408
Little skeptical about required power requirements. Open to any other suggestions as well.
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Controlling LED through toolboard
Hello,
I am in the process of creating a custom tool changer and wanted to know if tool boards (either 1LC v1.3 or Roto tool board) have any capability to interface with an LED and adjust/change color to indicate certain action: heating, active, etc. I see some spare IO in the schematics.
Any suggestions on what LED would work with these tool boards? -
Duet Closed Loop Stepper 23CL
Hello,
I came across the Duet 3 closed loop stepper motor (https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Motor_23CL) and thought it would be a great addition to a machine I am developing. Is there a timeline on when it's going to be available in the US region? I am interested in the 56 mm and 76mm NEMA 23 variants without brake. I would like to test these out for my application and I think would help make the wiring, setup, and usage easier.Are there any plans for the NEMA17 variant of this?
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Connecting a laser distance sensor to Duet3 6HC
Hello,
I wanted to know if it is possible to connect a laser distance sensor (https://www.automationdirect.com/adc/shopping/catalog/sensors_-z-_encoders/photoelectric_sensors/distance_measuring_sensors/opt2002) left behind from a previous project.
The sensor has allowable input voltage of 18-30 VDC and provides analog output: either 0-10V or 4-20 mAI am planning to use this to take periodic measurements of a rotating cylindrical shaft (this will be 4th rotary axis) before and after printing on this.
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Rotary axis feedrate calculation
Hello, I am working on a project to deposit filament along length of a rod. Currently I only have two axes: Axis A for rotation of the rod about its axis and Axis X for moving the extruder head along the length of the rod. The z height distance between tip on the nozzle and rod dia is adjusted manually. I have configured the rotary axis A as follows: (Using Duet3 mainboard 6HC with RRF 3.4.4)
; Drives M569 P0.0 S0 ; physical drive 0.0 goes backwards M569 P0.1 S1 ; physical drive 0.1 goes forwards M569 P0.2 S1 ; physical drive 0.2 goes forwards M569 P0.3 S1 ; physical drive 0.3 goes forwards M569 P0.4 S0 ; physical drive 0.4 goes backwards M584 X0.0 Y0.1 Z0.2 E0.3 A0.4 ; set drive mapping M350 X16 Y16 Z16 E16 A16 I1 ; configure microstepping with interpolation M92 X1280.00 Y80.00 Z400.00 E397.00 ; set steps per mm M92 A43.3086419 ; set steps per deg for rotational A axis (0.9deg motor = 400 steps/rev; 16x microstepping = 400*16/360 = 17.7778 steps/deg; 2.436 gearing ratio) M566 X900.00 Y900.00 Z60.00 E120.00 A120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z180.00 E1200.00 A12000.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z20.00 E250.00 A500.00 ; set accelerations (mm/s^2) M906 X1500 Y800 Z800 E1000 A1500 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X230 Y210 Z200 S0 ; set axis maxima ; Endstops M574 X1 S1 P"io0.in" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io0.in
The documentation says for rotary axis, M92 uses "steps per degree" units.
Questions:
- For a rotary axis, What are the units for M201, M203 and M566? deg/min?
- To set rotary axis for infinite rotation, I can either use large value in M208 or use G92 A0 before each move. What is max number I can use for M208 command?
- For an example linear interpolation command including linear, extruder and rotary axes: G1 A14400 X32.0 E80.0 F130
What is the speed of rotation of rotary (A) axis in this case? (based on my configuration)
Just trying to understand how feed rates work when linear and rotary axes are used in same G1 command.
Update:
After some experimentation, I noticed that changing feedrate (F) in the above G1 command involving A,X and E axes had NO effect on speed of rotation of A axis. This seems like feedrate parameter only affects linear axes. This makes me wonder how is A axis rotation speed calculated by Duet? -
RE: NPN Inductive Proximity Sensor as an axis End Stop
@droftarts Thanks!
Just to confirm, only one pin (io[#].in) is used out of the 5 pin IOs.
When connecting sensor (+) and GND to PSU, it should be the same PSU powering the VIN in duet right? to maintain common GND
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NPN Inductive Proximity Sensor as an axis End Stop
Hello, I want to use a normally closed NPN prox sensor that came as part of a ball screw actuator as the end stop for the axis. Documentation says I can directly connect this to the any of the 5-pin IOs (IO_0 through IO-9). I want to use this sensor at 24V (also my V_IN). I am using Duet 3 main board.
The NPN NC sensor has 3 wires: Brown (+), Blue (-) and Black (output). Voltage between Brown and Black is 24v during normal operation and 0v when triggered.
In terms of connecting this to the 5-pin IO:
3.3v -> No Connection
io[#].in -> Brown (+) from sensor (also needs to be connected to 24v)
GND -> Black (out) from sensor
io[#].out -> No Connection
5v -> No ConnectionQuestions:
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Is the io[#].in and GND connections right? or they have to be switched? Slightly confused since brown (+) from sensor has to be connected to 24v and io[#].in?
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Where can I source 24v from the Duet 3 board? VIN (24v) and any of the OUT (OUT1 to OUT 6 with appropriate jumper position to V_FUSED) are current options
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RE: Using 24V Extruder with Duet Tool Board 1LC
@T3P3Tony Thank you for the clarification
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Using 24V Extruder with Duet Tool Board 1LC
Duet documentation states it supports both 12V and 24V extrusion systems, however looking at the specs of the tool board 1LC, there is only 12V fan output and On-board 12V, 5V and 3.3V regulators. Is the 24V extruders (e3D Revo hemera) compatible with the tool board?