Search found 280 matches

by dc42
Mon Aug 21, 2017 4:09 pm
Forum: Troubleshooting
Topic: FSR + DuetWifi
Replies: 7
Views: 120

Re: FSR + DuetWifi

I suspect you have a bad crimp connection in the output wire from the JohnSL board to the Duet, or you have connected the output wire to the wrong pin on the Duet Z probe connector.
by dc42
Mon Aug 21, 2017 2:36 am
Forum: Troubleshooting
Topic: FSR + DuetWifi
Replies: 7
Views: 120

Re: FSR + DuetWifi

Check the connections between the JohnSL board and the E0 endstop input on the Duet. If you have connected it to the ZProbe connector instead, use P5 instead of P4 in your M558 command.

Does the JohnSL board have an led to indicate when it triggers?
by dc42
Sun Aug 20, 2017 7:00 pm
Forum: Troubleshooting
Topic: FSR + DuetWifi
Replies: 7
Views: 120

Re: FSR + DuetWifi

Does the JohnSL board produce an active low output (I1 in your M558 command)? I thought it was active high. Here's how to test the Z probe. Set the nozzle well above the bed and send G30. It should start a probing move towards the bed. Tap the bed sharply to trigger the FSRs and the head should stop...
by dc42
Fri Aug 11, 2017 5:07 pm
Forum: Troubleshooting
Topic: MAX V3 calibration woes or am I an idiot? HA
Replies: 5
Views: 296

Re: MAX V3 calibration woes or am I an idiot? HA

There is a long thread on this topic here https://www.duet3d.com/forum/thread.php?id=2002&p=1. It appears that over-string springs between the pairs of arms make this problem worse.
by dc42
Thu Aug 10, 2017 5:00 am
Forum: General Tips 'N Tricks
Topic: PCB smart effector and carriage adapters for Haydn Huntley's rods
Replies: 0
Views: 63

PCB smart effector and carriage adapters for Haydn Huntley's rods

Any of you who have fitted Haydn Huntley's magnetic rods and ball studs to your printer may be interested in the Duet3D PCB effector and carriage adapters, which will be shipping next week. It incorporates a nozzle contact sensor for bed probing based on strain gauge technology. See https://www.duet...
by dc42
Thu Aug 10, 2017 4:51 am
Forum: Rostock MAX v3
Topic: MAX V3 stock power supply volatage increase
Replies: 6
Views: 190

Re: MAX V3 stock power supply volatage increase

For anyone else doing a similar modification, instead of a resistor I suggest you put two 1N4001 or similar silicon rectifier diodes in series with the fan. They will drop almost 1V each, bringing 13.5V-14V from the PSU back down to 12V for the fan.
by dc42
Mon Aug 07, 2017 5:37 pm
Forum: Troubleshooting
Topic: RepRapFirmware E3D v6 tuning
Replies: 4
Views: 286

Re: RepRapFirmware E3D v6 tuning

If you are using a Duet WiFi or Duet Ethernet, then you shouldn't need to do any tuning other than the usual heater model tuning (equivalent to PID tuning in other firmwares). With the earlier Duets, it was sometimes helpful to tune the ADC offset and gain to get more accurate readings, especially a...
by dc42
Fri Aug 04, 2017 6:07 pm
Forum: Troubleshooting
Topic: Panel due not working (both USB to PC and ribbon to duet)
Replies: 1
Views: 117

Re: Panel due not working (both USB to PC and ribbon to duet)

I believe you have posted a similar question on the duet3d forum, and I have replied there.
by dc42
Thu Jul 27, 2017 12:29 pm
Forum: GCode & Test Prints
Topic: Feedback on print quality
Replies: 12
Views: 1014

Re: Feedback on print quality

Vertical banding on delta printers is symptomatic of firmware that uses segmentation and/or stepper drivers that don't do low current microstepping well.
by dc42
Thu Jul 27, 2017 12:22 pm
Forum: GCode & Test Prints
Topic: how to gcode?: continuous, uninterrupted extrusion
Replies: 9
Views: 1247

Re: how to gcode?: continuous, uninterrupted extrusion

It's easiest if you generate relative extruder coordinates, then you just need to make the E coordinate of each gcode command proportional to its XY length to get a constant extrusion rate.
by dc42
Thu Jul 27, 2017 12:10 pm
Forum: Troubleshooting
Topic: Problem with duetwifi's cpu fan
Replies: 7
Views: 353

Re: Problem with duetwifi's cpu fan

The self resetting fuse doesn't protect the fan circuits. If you shorted out an always on fan connector, this typically fuses the trace between the VIN terminal block and the VIN pin on the fan voltage selector jumper block. This trace can easily be bypassed using a piece of wire on the back of the ...
by dc42
Thu Jul 27, 2017 12:00 pm
Forum: Troubleshooting
Topic: RepRapFirmware E3D v6 tuning
Replies: 4
Views: 286

Re: RepRapFirmware E3D v6 tuning

See https://wiki.e3d-online.com/wiki/E3D-v6_Assembly#RepRapFirmware for how to configure the M305 command to set the right parameters for the E3D thermistor. The C parameter goes in the same M305 command. The warning message simply means that your hot end will get very hot indeed if the heater gets ...
by dc42
Wed Jul 12, 2017 1:05 pm
Forum: Duet
Topic: Duet FSR's Stuck at Min Stop
Replies: 4
Views: 180

Re: Duet FSR's Stuck at Min Stop

I suspect that you have a bad crimp connection in the output wire from the FSR board to the Duet. You can test the Duet's input by disconnecting the FSR board and shorting the two outer pins of that endstop connector together. The LED should come on and the firmware should indicate that the Z probe ...
by dc42
Fri Jun 16, 2017 1:35 am
Forum: Duet
Topic: Optimizing Duet setup regarding stepper current, jerk and speed
Replies: 2
Views: 238

Re: Optimizing Duet setup regarding stepper current, jerk and speed

You need to enter the inductance in Henries, then you get 737mm/sec. It's mm/sec not m/sec because the formula assumes a 2mm belt pitch. The reason it is so high is that the motors have low inductance and you are running them well below their rated current. You could certainly increase the current t...
by dc42
Thu Jun 15, 2017 6:38 pm
Forum: Rostock MAX v3
Topic: Stock Max v3 Motors on 24v?
Replies: 14
Views: 557

Re: Stock Max v3 Motors on 24v?

The uncalibrated MCU temperature on the Duet WiFi and Duet Ethernet should be within 13C of the true temperature. For the Duet 06 and 085, it could be up to 45C off.
by dc42
Sun Jun 11, 2017 3:27 pm
Forum: Rostock MAX v3
Topic: Stock Max v3 Motors on 24v?
Replies: 14
Views: 557

Re: Stock Max v3 Motors on 24v?

Higher current will reduce the likelihood of missed steps. However, if you increase the current much above the 1.2A that you are already using, then you will need to use a fan to cool your Duet 0.6 board. The best arrangement is a fan that blows cool air along the line of drivers on both sides of th...
by dc42
Sun Jun 11, 2017 2:20 am
Forum: Rostock MAX v3
Topic: Stock Max v3 Motors on 24v?
Replies: 14
Views: 557

Re: Stock Max v3 Motors on 24v?

Yes, inductance is normally quoted per phase.
by dc42
Fri Jun 09, 2017 4:11 pm
Forum: Rostock MAX v3
Topic: Stock Max v3 Motors on 24v?
Replies: 14
Views: 557

Re: Stock Max v3 Motors on 24v?

Thank you for the reply. The only 2A 0.9 deg motors I could find on http://www.omc-stepperonline.com and on Amazon have an inductance of 3mH, while the 1.68A motors I found on http://www.ultibots.com have an inductance of 2.8mH. Further, the holding torque of the 2A is 46Ncm vs 44Ncm of the 1.68A m...
by dc42
Fri Jun 09, 2017 8:11 am
Forum: Rostock MAX v3
Topic: Yet another Duet-to-HE280 accelerometer probe adapter
Replies: 69
Views: 3740

Re: Yet another Duet-to-HE280 accelerometer probe adapter

See https://duet3d.com/wiki/Connecting_a_Z_ ... tor.28s.29. If you have connected the JohnSL board to the Z probe connector, you should use P5 in the M558 command instead of P4.
by dc42
Fri Jun 09, 2017 8:08 am
Forum: Rostock MAX v3
Topic: Stock Max v3 Motors on 24v?
Replies: 14
Views: 557

Re: Stock Max v3 Motors on 24v?

I don't know those motors in particular. However, if you are looking for high travel speeds, when using the Duet WiFi or Duet Ethernet it's better to take advantage of the high current rating of the drivers and choose motors rated at 2A rather than 1.7A, because they will have lower inductance - ass...
by dc42
Wed Jun 07, 2017 6:00 pm
Forum: Rostock MAX v3
Topic: Stock Max v3 Motors on 24v?
Replies: 14
Views: 557

Re: Stock Max v3 Motors on 24v?

Like all other 3D printer boards, the Duets use constant current stepper drivers. This means that you do not need to change the motors or the motor settings in firmware when changing from 12V to 24V power.
by dc42
Sat Jun 03, 2017 7:54 am
Forum: Duet
Topic: Understanding Probing and Trigger Z Height
Replies: 10
Views: 599

Re: Understanding Probing and Trigger Z Height

If you adjust the G31 Z parameter and then run auto calibration, then the live M665 values will be altered based on the calibration results. You can see this by running M665 with no parameters, which displays the current values. However, the new values will not survive a power down/up or a reset unl...
by dc42
Tue May 30, 2017 1:51 am
Forum: Rostock MAX v3
Topic: Yet another Duet-to-HE280 accelerometer probe adapter
Replies: 69
Views: 3740

Re: Yet another Duet-to-HE280 accelerometer probe adapter

Either the adapter isn't registering a hit, or it is but it isn't being communicated to the firmware running on the Duet. Have you verified that you are using the correct wiring from the adapter back to the Duet, and the correct M558 command in the config.g file? Does the adapter have a LED that fla...
by dc42
Mon May 29, 2017 4:47 pm
Forum: Alligator Board
Topic: Firmware, Arduino IDE files
Replies: 1
Views: 507

Re: Firmware, Arduino IDE files

In case it's of any interest, there is now an up-to-date build of RepRapFirmware for the Alligator. See https://github.com/MarcoAntonini/RepRap ... e/releases.

Go to advanced search