If I was building a printer board I would use a DRV8825 driver chip. The problem is the fine pitch of the pins would be a problem for my bad eys and board building skils.
The other problem is cost, purchasing all parts required in small volume would cost more than an assembled driver board.
If you are doing it as a learning experience not a cost savings design a board using the Pololu driver board as a driver.
These driver boards are cheap and if you are building your own board you will blow at lot of chips prior to getting a working board.
I made my own driver board for a cnc machine. I made several tries before I had a working board. The cost to build was 3 times the cost to buy a driver. This does not count the $400 scope I purchased to test board. They did not work as good as a purchased driver and I then ending up purchasing a commerial driver to get a reliable machine.
I do not reget building my own as I learned a lot and that was my goal.
If learnig is your goal go for it but start simple and grow, if getting a cheap board is you goal just buy one.
The other problem is cost, purchasing all parts required in small volume would cost more than an assembled driver board.
If you are doing it as a learning experience not a cost savings design a board using the Pololu driver board as a driver.
These driver boards are cheap and if you are building your own board you will blow at lot of chips prior to getting a working board.
I made my own driver board for a cnc machine. I made several tries before I had a working board. The cost to build was 3 times the cost to buy a driver. This does not count the $400 scope I purchased to test board. They did not work as good as a purchased driver and I then ending up purchasing a commerial driver to get a reliable machine.
I do not reget building my own as I learned a lot and that was my goal.
If learnig is your goal go for it but start simple and grow, if getting a cheap board is you goal just buy one.