Thread: On going chinese 6040 problems
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07-09-2014 #1
OK so iv been trying to set up my 6040 cnc and to be honest i can run it and i have cut some MDF with it, but im not 100% happy with it. The problem i have is if i set the motor tuning to the recommended setting the steppers jam. To prevent this i have to run them at less than half the recommended settings. Here is a video of whats happening maybe someone can help,
https://www.youtube.com/watch?v=O3I8...ature=youtu.be
hope some one can help
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It would help if you gave some details about power supply, voltage, motor specs if you have them and driver.
That would be a start so people can make an informed opinion. ..Clive
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07-09-2014 #3
Also do you have Mach3 set to mm or inches ?
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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07-09-2014 #4
yer sorry this is what i have
http://www.ebay.co.uk/itm/CNC-ROUTER...item2c5eac77af
and this is what in the box and the steppers
i dont know if that helps.. i also have mach3 set to mm .
thanks for the help Mick
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07-09-2014 #5
It looks like you have this setup;
3163B Stepper Driver
set to;
Dynamic Current = 2.5A
1/8 Microstep
50% Standstill Current
57HD5401-14S/8 Stepper Motor
1.8 step angle
6.6V
3A
2.2 Ohms
8mH
17kg/cm
4 wire
24v 8.3A DC PSU
1605 ball screws
And that being so, the settings you have seem to be okay as far as I can make out.
However I did a conversion of the motor torque setting and 17 kg/cm = 1.6671305 Nm, this is not so good but as your video shows they are not under load.
I think you could reduce the microstepping and see if that helps, remember to change the Mach3 'steps per' to match.
5m pitch
1.8 deg motor
1/8 microstep (8)
360/1.8 = 200
200/5 = 40
8 * 40 = 320 steps per
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Reduce microstepping to 2 by setting K1 ON, K2 OFF
5m pitch
1.8 deg motor
1/2 microstep (2)
360/1.8 = 200
200/5 = 40
2 * 40 = 80 steps perLast edited by EddyCurrent; 07-09-2014 at 10:13 PM.
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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The Following User Says Thank You to EddyCurrent For This Useful Post:
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07-09-2014 #6
ok thanks ill try that. im rite in thinking at the moment they are both set to on. so all i need to do is switch k2 down on all three . Then change the steps per to 80 . I do have 3 of these i could try and see if its any better if that dose not work .
http://www.ebay.co.uk/itm/EU-Free-Sc...item338efc0758
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08-09-2014 #7
Ok I'm lost now. Are you saying the board I'm using won't take 36v or the drivers that came with the kit won't take 36v
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08-09-2014 #9
Ok I'm lost now. Are you saying the board I'm using won't take 36v or the drivers that came with the kit won't take 36v
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08-09-2014 #10
Yes that's correct
I was going to make my own so I got all the parts together to make one. Then I found I don't have the time to prototype parts. So I thought I would buy one. . The photos and video are of the one I got form eBay. The link to the aliexpress is a kit of electrical parts I have that for the one I was going to ( May still do) make. But I can use the parts on the other if I need to. Not sure about the sub Bob now thow as I have a dedicated pc with a PP. Hope that's abit more clear. Thanks mick
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