Re: new to 3d printin looking to dive in May 06, 2015 07:43AM |
Registered: 11 years ago Posts: 469 |
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o_lampe
How are the odds for buying steppers nowadays, that are NOT able to do 1/16 microsteps?
Background: I sourced my steppers I used to play with from old copymachines. They hardly do 1/2 steps, better use fullsteps only....
Just thinking out of the box
Olaf
PS: Did you try to reduce speed and acceleration settings?
Re: new to 3d printin looking to dive in May 06, 2015 07:54AM |
Registered: 11 years ago Posts: 469 |
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lokiwizz
Allright guys all these are valid points.
at this point I have not tested every motor.
but two motors act the same when plugged in to any of the drivers. As for steps or speed I have not changed them. the power supply I'm un certain on an explication on how to test for that would be greatly appreciated.
The replacement parts should be in today along with the osiliscope so I will check the drivers before trying a new one.
Buying 4 bad drivers is unlikely but damaging 4 drivers from hot swapping the motor harness I think is in the realm
of possibilities
Re: new to 3d printin looking to dive in May 06, 2015 08:36AM |
Registered: 9 years ago Posts: 48 |
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bigfilsing
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lokiwizz
Allright guys all these are valid points.
at this point I have not tested every motor.
but two motors act the same when plugged in to any of the drivers. As for steps or speed I have not changed them. the power supply I'm un certain on an explication on how to test for that would be greatly appreciated.
The replacement parts should be in today along with the osiliscope so I will check the drivers before trying a new one.
Buying 4 bad drivers is unlikely but damaging 4 drivers from hot swapping the motor harness I think is in the realm
of possibilities
However likely it is that you have blown your drivers i still think you should investigate If only to avoid the dilemma when your new drivers arrive and you still have the same problem.
Power supply testing depends on what power supply you have but the simplest test would be to measure the output and monitor it when under load . Connect your heated bed and or hotend to load it up and make sure the voltage doesn't drop.
You can also measure the 12V where it goes into the stepper driver and make sure that doesnt dip when you try and move the stepper motor.
Be careful when your probing around. The drivers work on 5 volt logic for dir/step/ enable but the actual feed to the motor comes from the 12 Volt rail on the ramps.
To avoid any issues with settings simply use the Marlin test code. If you can get them working on that then there should be no reason why they wouldnt work with the proper firmware loaded.
Re: new to 3d printin looking to dive in May 06, 2015 11:03AM |
Registered: 8 years ago Posts: 5,232 |
Re: new to 3d printin looking to dive in May 06, 2015 11:09AM |
Registered: 9 years ago Posts: 48 |
Re: new to 3d printin looking to dive in May 06, 2015 12:19PM |
Registered: 11 years ago Posts: 469 |
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lokiwizz
Little update to list the psu specs.
Supernight
360w
12v 30a
This would be sufficient as long as it is capable And in good working order?
Re: new to 3d printin looking to dive in May 06, 2015 12:33PM |
Registered: 9 years ago Posts: 48 |
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bigfilsing
Quote
lokiwizz
Little update to list the psu specs.
Supernight
360w
12v 30a
This would be sufficient as long as it is capable And in good working order?
Should be OK looks like a standard unit. There is sometimes a small trim pot near the terminals that allows you to adjust the out put voltage but that's normal not needed as they are usually set at the factory during testing.
It would be normal to expect a slight dip when a load is applied but nothing radical.
You might also want to check your ramps boards as it is there that a regulator "creates" 5 volts for the mega logic control and drive. Its a bit far fetched but id be checking everything i possible can while i wait for spares.
I still think you should get a bread board and set up a single driver and single motor system to test things out. You can also set your new drivers there as well. Not to mention having a play with your new scope :-)
Re: new to 3d printin looking to dive in May 07, 2015 08:08AM |
Registered: 9 years ago Posts: 48 |
Re: new to 3d printin looking to dive in May 07, 2015 10:13AM |
Registered: 11 years ago Posts: 469 |
Re: new to 3d printin looking to dive in May 07, 2015 10:22AM |
Registered: 9 years ago Posts: 48 |
haha funny funny no I will post up the actual pin out vs the listed pin out tonight to be clear. but in short I should have conected the dots when I ohm'ed it the many times. As you said it it's very basic and I felt like such a fool last night but I did get a good chuckle out of it.Quote
bigfilsing
Well thats good news ...
How can the pin out be wrong ???? its all very clear and has worked for many people for a considerable amount of time !! Or is that just a smoke screen for less than ideal wiring harness
Re: new to 3d printin looking to dive in May 07, 2015 01:01PM |
Registered: 9 years ago Posts: 131 |
Re: new to 3d printin looking to dive in May 10, 2015 07:02AM |
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Re: new to 3d printin looking to dive in May 10, 2015 04:32PM |
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Re: new to 3d printin looking to dive in May 10, 2015 07:07PM |
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Re: new to 3d printin looking to dive in May 10, 2015 08:58PM |
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Re: new to 3d printin looking to dive in May 10, 2015 09:09PM |
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Re: new to 3d printin looking to dive in May 12, 2015 08:01AM |
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Re: new to 3d printin looking to dive in May 12, 2015 07:41PM |
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Re: new to 3d printin looking to dive in May 12, 2015 07:46PM |
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Re: new to 3d printin looking to dive in May 16, 2015 10:13AM |
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