Topic: New SureStepr SD8825 Installed!
My Y axis A4988 is fried and probably reason I had Y skipping and missteps all last week (very bad).
So after researching I pulled trigger on both the
Pololu A4988 Black edition. drop-in but need to have it soldered.
SureStepr SD8825 (I assume is the DVR TI chip 8825?)
QU-BD Nema 17 4.5KG torque motor (assume the worse that Y motor will be next to go) I called QU-BD and they said will be direct drop in for the SD one. It appears it is little longer but I can easily move the Y drive pully down the shaft a little. Plus it has 2x the torque at a lower amp rating of 1.2A vs 1.33. Combined with the SD board (I hope) I should see no over heating and better control at 1A in the Y. If it works I will crank it up to 1.1-1.2 amp range and see if I can get any improved speeds or acceleration in the Y ans X ( I will use stock x motor but with better driver board)
As a test. I will see how they work. The SD looks sweet with heat sink and better load handling. I hope it is a tru drop-in? I know the Black edition one is but needs to be soldered
I ordered today so hopefully by the weekend I can start testing
I
Print for fun and for parts for my sports cars
current car is 88 IROC