55 replies to this topic

[Greg Erskine]

Thanks for the info.

[dtosetto]

Getting Ready for testing, Last step build the resistor network.

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[dtosetto]

More pics, I have 2 board sets left if anyone like to get one, Its completely free, just send me prepaid label, and I will ship then, Only thing I'm asking is to provide feedback, on how can we make improvements. 

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[Greg Erskine]

Great progress. 

 

What are you doing for a heatsink?

 

I think:

 

1. The brake circuit carries the full back EMF of the motor so it should have thick wires for optimal performance (especially if the relay fails). I guess thin wire could be considered part of the resistance network.

 

2. The power traces need to be as wide as possible and the wires need to connect directly to the relay and transistors. You don't want power to be travelling along PCB traces if possible.

 

I would only install one output transistor for testing.

[Johnny]

More pics, I have 2 board sets left if anyone like to get one, Its completely free, just send me prepaid label, and I will ship then, Only thing I'm asking is to provide feedback, on how can we make improvements. 

 

Very very Interesting Project!  How can I get one Board to Norway?      

I can PayPal You the shipping costs. 

[Greg Erskine]

hi Daniel,

 

Any news of your progress?

 

Have you got your github repository setup? I am interested in experimenting with your files.

 

regards

Greg