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Hot hot hot!!!!

Posted by Ketchup

Ketchup

Hot hot hot!!!!
February 09, 2014 12:53AM

Registered: 10 years ago
Posts: 9

Let's try this again, as it's beginning to worry me...

I am using a geared nema 17 ( 5:18:1? ) for my extruder and it gets really hot. What current should this motor be set at in the repetier firmware?

Currently they're at {150,150,150,155,0}

Edited 1 time(s). Last edit at 02/09/2014 12:54AM by Ketchup.

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NoobMan

Re: Hot hot hot!!!!
February 09, 2014 06:42AM

Registered: 13 years ago
Posts: 1,352

The peak current in the motor is set by the driver and is manually adjusted with a screwdriver on a pot located on the driver board.

Its not impossible to have the currents adjustable in firmware but would need extra hardware and would only make sense in case of a close loop, so on short, afaik nobody uses it like that.

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tjb1

Re: Hot hot hot!!!!
February 27, 2014 08:29AM

Registered: 10 years ago
Posts: 553

Quote
NoobMan
The peak current in the motor is set by the driver and is manually adjusted with a screwdriver on a pot located on the driver board.

Its not impossible to have the currents adjustable in firmware but would need extra hardware and would only make sense in case of a close loop, so on short, afaik nobody uses it like that.

There are quite a few boards that have firmware set current now, Rambo is one of them.