Unfortunately, there may be very few Japanese developers on the PanelDue forum.
At any rate, I created a pull request.
Posts made by nyaru
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RE: Paneldue japanese translation
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Paneldue japanese translation
I have created a Japanese translation of Paneldue.
I think it is useful for Japanese users who are not good at English.However, due to hardware limitations, the available alphabets are few, so the expressions are a bit childish. It's like a book read in kindergarten.
I am a CNC user, so I am not sure if the terminology of 3D printers is perfect, but I tried to translate as much as I could.
I have left long Japanese words in English.If there are any Japanese users here, please give me your opinion on the translation.
If it looks OK, I would like to create a pull request.
https://github.com/nyarurato/PanelDueFirmware/tree/jp_translate
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G82 Allow to move multiple E axis in absolute mode
I am building a support system for motion art production using Duet. The motorized art may use 10 or more motors.
I am currently using multiple E-axes and disappointed that the M82 does not support multiple axis movement.https://github.com/Duet3D/RepRapFirmware/blob/3.5-dev/src/GCodes/GCodes.cpp#L1815
I have solved this problem with CAM to convert relative move, but I would like to use absolute coordinate movement of multiple E-axes if possible.
Is there any reasons to prohibit multiple E-axis moves in absolute coordinates?
If there is another way to move multiple E-axes in absolute coordinates, please let me know.Thanks,
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RE: Anybody wants a stepper motor analyzer?
@zapta
thanks for the nice report@zapta said in Anybody wants a stepper motor analyzer?:
The CC6920BSO seems to have much higher output impedance, when I loaded it with 100ohms to ground Vout went down significantly while the TI didn't change.
I checked the datasheet and it shows "Output resistance load": probably output impedance, is 1.5k ohms.
Does this mean that the following should be considered in such a case?
- MPU needs high input impedance than sensor
- It is better not to use an electrical LPF filter
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RE: Anybody wants a stepper motor analyzer?
@zapta said in Anybody wants a stepper motor analyzer?:
Is it ok to link it in the page below, saying that people can buy it from your site?
https://github.com/zapta/simple_stepper_motor_analyzerOf course it is OK.
I hope other sellers will appear for users in other countries, because shipping from Japan is expensive to non-Asian countries.
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RE: Anybody wants a stepper motor analyzer?
@doc-s I have a small amout of analyzer kits using the CC6920BSO-5A shown here.
@nyaru said in Anybody wants a stepper motor analyzer?:
Hi.
I am planning to sell a small quantity of this analyzer in Japan for CNC users.I sell it in Japan at the following page .
https://nyarurato.booth.pm/items/4025304If you need them with international shipping, you can order them from the web page using a proxy service or by sending direct message to me on this forum.
Payment would be made by PayPal or T/T transfer.If anyone else is interested, please send me a direct message.
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RE: Anybody wants a stepper motor analyzer?
@zapta
Thanks for letting me know.The Alegro datasheet says " It incorporates giant magneto-resistive (GMR) technology that is 25 times more sensitive than traditional Hall-effect sensors to sense the magnetic field generated by the current flowing through the low resistance, integrated primary conductor. " such that is needs less gain and thus has less noise.
It seems that a large part of the problem is the performance of the IC.
I have also built an analyzer with the TMCS1108A4B, but I think the CC6920BSO is noisier.
@nyaru said in Anybody wants a stepper motor analyzer?:
Hi.
I have made the analyzer using TMCS1101A4B.When using the CC6920BSO for an analyzer, it may be better to set LPF stronger.
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RE: Anybody wants a stepper motor analyzer?
I have hard time downloading the datasheet from LCPCB. Do you happen to have it?
You can see it from another current value sensor page.
https://www.lcsc.com/product-detail/Current-Sensors_Cross-chip-CC6920BSO-10A_C2880431.htmlI already changed sensitivity to 264mV/A in firmware. and it works well.
Do CNC users typically need higher current range than 3D printers?
Yes. Milling and Cutting something in CNC machine need more power than 3D printer. I used 3A stepper motor in my CNC machine.
The firmware does basic signal filtering which reduces the impact of the noise.
Thanks for telling it! This may be the reason why analyzers are less noises than oscilloscopes.
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RE: Anybody wants a stepper motor analyzer?
Hi.
I am planning to sell a small quantity of this analyzer in Japan for CNC users.
I found a cheap current sensor CC6920BSO-5A made in China at LCSC and tested it. LCSC Part No: #C2880430
This sensor also drive in 3.3V.
With this, the current sensor can also be mounted on the board in JLCPCB.I want to share you the test result.
There appears noises on the signal. But I think It is not a problem to get rough forms of waveform.
movies:
https://youtu.be/GVSU9TVF_7k
https://youtu.be/dTQMCF_6i5k -
RE: Remove pullup resistor on sensor input pin
@alankilian
I changed to use io pin as analog input.
It works.
Thank you!!! -
Remove pullup resistor on sensor input pin
Hi.
I have a sensor with analog voltage output connected to the "temp0" pin of Duet3 6HC.
This sensor outputs 0-5.2V, so I use a voltage divider resistor to step it down to 3.3V. It uses 2kΩ, 3kΩ, and variable resistors.
However, when the sensor output is 0V, the reported sensor value is not 0 on Duet. About 1V is applied to temp0.
I am thinking that the pull-up resistor may be the cause.
Can I disable the pull-up resistor on the sensor pin?I have set up the sensor with the following command
M308 S0 P"temp0" Y"linear-analog" A"laser" B0 C100
Thanks
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RE: Anybody wants a stepper motor analyzer?
Hi.
I have made the analyzer using TMCS1101A4B.
It is very nice. Thanks for developing it
I took a video of it in running.
https://youtu.be/eDaxUO8Hbqo?t=115And I have questions.
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"Current Patterns" and "Phase Patterns" screens are choppy, is this normal?
It sample data for 20ms, but it feels like 2fps.
Is this due to the heavy load of data post-processing on the Raspberry Pi Pico? -
The ACS70331 has a bandwidth of 1MHz, whereas the TMCS1101A4B has a bandwidth of 80KHz.
I think 80KHz is sufficient for measuring stepping motor pulses, is that correct?
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RE: Wiki/Docs images broken?
I have same troubles.
If you're using chrome, you can avoid this problem by adding "cache:" to the URL.
like this.cache:https://duet3d.dozuki.com/c/Duet_3_Mainboard_6HC