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On 14/01/2021 at 12:21, tender said:

Yeh, its a plug-in replacement for the A4988 apart from the direction which is reversed.

 

Decided to convert my traverser to stepper motor drive.

I ordered some TMC2208's which arrived this morning.

I have purchased the V3.0 which seems to have some different options to V1.0 regarding UARTs.

Any ideas if it makes a difference?

 

I'm just knocking up a breadboard to test the workings using a Nano & a Shinano stepper out of an Epson Scanner

I also ordered some more Pulleys and a belt (from CNC Planet) in case what I have isn't suitable.

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15 hours ago, melmerby said:

 

Decided to convert my traverser to stepper motor drive.

I ordered some TMC2208's which arrived this morning.

I have purchased the V3.0 which seems to have some different options to V1.0 regarding UARTs.

Any ideas if it makes a difference?

 

I'm just knocking up a breadboard to test the workings using a Nano & a Shinano stepper out of an Epson Scanner

I also ordered some more Pulleys and a belt (from CNC Planet) in case what I have isn't suitable.

 

 

Yeh, you need to make sure you set it to Legacy Mode if using as a drop in replacement for the A4899 (same code).

On the underside there should be a row of 3 solder pads. Make sure there are no links bridging these.

V3.0 boards may have a link.

This might be useful.

 

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