Originally shared by Shane Gough I wrote a more in depth post about my

General CNC CNC Routers
,
1

Originally shared by Shane Gough

I wrote a more in depth post about my ATMega based CNC input board. It is still a #workinprogress but functional enough that I am using it to do a set of board levelling probes. arduino #atmelavr #cncmachine
http://thegaragelab.com/cnc-auxiliary-input-board/

2

Ah, the good old TB6560AHQ. I like them, for what they are. Although they have a bad rep because so many fail to take the time to fully understand the hardware. I guess for $30 not many are willing to invest too much of themselves into something. Which is a shame, because there is a lot of good potential there, if folks only took the time to realize it for themselves.

I will say this to anyone that is willing to make an effort. Get Toshiba’s data sheet and read about the current sense resistors. Then put the right ones on your board for your motors. Using the Torque settings of the IC is not really the best way to do it I’m afraid. Set the Decay lines to 100% too.

Then come back and thank me. Because depending on how far off optimal things started out those changes could boost output torque up to about 6 times over what it was. Which is substantial, to say the least.