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Printing issues ...
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for IMG_2344.JPG it is bed level . level bed and it will fine
by
samotras
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Printing
Hi ,
After most of search i can not resolve my problem, any advise much appropriate .
Some information :
Firmware : Marlin
Host software : Pronterface
Slicer : Slic3r
Y Axis Motor Nema 23 19.5 Kg 2.2Amp
Moro drive : DIV268N - 5A
All wire cheked : OK
Step : Full Step
In firmware :
#define DEFAULT_AXIS_STEPS_PER_UNIT {80.0000, 640.0000, 320.0000, 28.5000, 28.5000,80.0000 }
#define DEFAULT_M
by
samotras
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Stepper Motors, Servo Motors, DC Motors
Hello , As million problems to coming out from sainsmart kits , now i reach to set current limit for A4988 drive , i know how i can to set current limit but first i need to know how i can to find out VREF for my A4988 drive , i saw polo video and other guide but in my A4988 no ref point at all !!
how i find out what VREF my A4988 has ?
just notice that sainsmart never reply to technical questi
by
samotras
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Controllers
there is one jumper for 5V only to get from USB nothing else , it is placed next to USB port (blue jumper) , when remove blue jumper no 5V comes to board , i can not see any 5V regulator at the board .
Can you tell me how can i add 5V to my board and what is 7805?
QuoteVDX
... either there is missing a voltage regulator to get the 5V out from the 12V, or you haven't found (a possibly existing?)
by
samotras
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Controllers
When USB connected i have on pin 2 4.87V and pin 3 3.3V , When usb remove and board only connect to 12V power supply pin 2 is 3.3V (Why?) and pin 3 3.3V
LCD working only when usb connect and pin 2 has 4.8V , but with out usb pin 2 receive 3.3V and LCD not working only backlight of LCD turn on when push keypad
Im not electronic man but im sure the problem becomes from pin 2 how can i deliver 4.8V
by
samotras
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Elektrik & Elektronik
Hello every one , at first be aware about to order Megatronics V2.0 from sainsmart.com no document , no support at all from sainsmart , any document they will send to poor buyer came out from this forum and just they put it on 2 page word files !!!! , so be happy to find this topics and go for another board ,
im still working on bunch of problems of this board and saw many ppl bought it , some
by
samotras
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Controllers
i changed from 2 nema 17 to one nema 23 with TB6600 external drive , the 2 motors in one axis have many disadvantage
by
samotras
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Controllers
Same problem about LCD only work with USB power , any advise ?
by
samotras
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Controllers
I have same issue with Megatronics V2.0 , any advise ?
by
samotras
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Controllers
I'm building a 3Dprinter and am collecting parts still mostly reading and learning.
A bunch of powerfull stepper motors, Nema 17 and 23 are waiting to be used but the A4988 won't drive these, 2 - 3 Amp will be needed.
Is there a good megatronics v2.0 design somewhere out there for use with external drives?
the reason i want to use external stepper drive becuz i dont know how to use 2 motor for
by
samotras
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Controllers