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Build Your Own SLA/SLS A forum dedicated to helping you build your own SLA/SLS-based 3d printer 2014-07-17T23:40:50-04:00 http://www.buildyourownsla.com/forum/feed.php?f=3&t=1486 2014-07-17T23:40:50-04:00 2014-07-17T23:40:50-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4298#p4298 <![CDATA[Re: Drivers needed to controll mega 2560]]> BTW that stepper motor is going to draw too much current for that driver you my burn it out. They really shouldn't drive any higher than 2 amps your stepper will draw 2.8

Statistics: Posted by Finhead — Thu Jul 17, 2014 11:40 pm


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2014-07-17T23:05:46-04:00 2014-07-17T23:05:46-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4297#p4297 <![CDATA[Re: Drivers needed to controll mega 2560]]> :D :D :D :D :D :D :D :D :D :D :D :D :D

Ok so how did i fix it by adding 3 jumpers below the step stick


so after sitzme suggesting it was a step rate problem i had done a little research and voila i found post mentioning the jumpers under the stepper driver boards.


all the tutorials i have read regarding ramps set ups i have never seen mention of these jumpers nor was the ramps board shipped with jumpers, very frustrating,

now how do i make the steeper step faster hahahahahahah do remove one jumper or adjust the firmware??????


thank you to all that help 8-)

Statistics: Posted by chemstar — Thu Jul 17, 2014 11:05 pm


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2014-07-17T22:13:29-04:00 2014-07-17T22:13:29-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4296#p4296 <![CDATA[Re: Drivers needed to controll mega 2560]]>
image.jpg

Statistics: Posted by chemstar — Thu Jul 17, 2014 10:13 pm


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2014-07-17T22:12:05-04:00 2014-07-17T22:12:05-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4295#p4295 <![CDATA[Re: Drivers needed to controll mega 2560]]>
Here are some details on the set up also my stepper is the 263oz stepper
image.jpg

image.jpg

image.jpg

Statistics: Posted by chemstar — Thu Jul 17, 2014 10:12 pm


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2014-07-17T11:00:35-04:00 2014-07-17T11:00:35-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4275#p4275 <![CDATA[Re: Drivers needed to controll mega 2560]]> The drivers your using are only designed to run 2.5 amps at the high end so your motor must not draw more, but they also need to be adjusted properly.


Statistics: Posted by Finhead — Thu Jul 17, 2014 11:00 am


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2014-07-17T08:55:16-04:00 2014-07-17T08:55:16-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4274#p4274 <![CDATA[Re: Drivers needed to controll mega 2560]]>
The stepper motors work by switching the field coils with transistors instead of a commutator. You can drive a stepper by manually connecting the wires and switching them in the correct sequence. Slow but it will turn. If you drive a stepper too fast the armature can't keep up with the field and it loses all torque and gets out of step. That usually has a sound that can vary from a growl to a squeel. The buzz you describe is fairly typical in my experience.

I would drop the step rates until you get consistent motion, then raise it until it fails. At that point back it down and do some testing to be sure that it will work under all loads and conditions for your machine.

Statistics: Posted by sitzme — Thu Jul 17, 2014 8:55 am


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2014-07-17T05:06:09-04:00 2014-07-17T05:06:09-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4273#p4273 <![CDATA[Re: Drivers needed to controll mega 2560]]>

what iv changed

Replaced nema 17 with nema 23

upgraded step stick to drv8825 (also tried other brands)

hard wired the power supply and stepper connections

used 3 different power supplies

tried marlin and sprinter

every time iv changed something i tried and still the same result, works fine with the ramps 1.4 firmware but when i try marlin or sprinter with creation workshop the stepper just buzzzes, what am i doing wrong?

Statistics: Posted by chemstar — Thu Jul 17, 2014 5:06 am


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2014-06-21T04:44:16-04:00 2014-06-21T04:44:16-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=4052#p4052 <![CDATA[Re: Drivers needed to controll mega 2560]]>
i actually thought it was the power supply and so changed to another one but still the same

i will report back with results

Statistics: Posted by chemstar — Sat Jun 21, 2014 4:44 am


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2014-06-16T02:44:39-04:00 2014-06-16T02:44:39-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3988#p3988 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by Finhead — Mon Jun 16, 2014 2:44 am


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2014-06-15T19:13:30-04:00 2014-06-15T19:13:30-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3985#p3985 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by SIDRANA — Sun Jun 15, 2014 7:13 pm


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2014-06-15T11:14:52-04:00 2014-06-15T11:14:52-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3984#p3984 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by Finhead — Sun Jun 15, 2014 11:14 am


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2014-06-14T21:58:14-04:00 2014-06-14T21:58:14-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3979#p3979 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by chemstar — Sat Jun 14, 2014 9:58 pm


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2014-06-07T02:28:39-04:00 2014-06-07T02:28:39-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3873#p3873 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by chemstar — Sat Jun 07, 2014 2:28 am


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2014-06-14T21:48:38-04:00 2014-06-07T02:27:26-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3872#p3872 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by chemstar — Sat Jun 07, 2014 2:27 am


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2014-06-03T22:54:06-04:00 2014-06-03T22:54:06-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=1486&p=3841#p3841 <![CDATA[Re: Drivers needed to controll mega 2560]]> Statistics: Posted by Finhead — Tue Jun 03, 2014 10:54 pm


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