Trying to pick up the pieces after major life changes and get my 3d

Trying to pick up the pieces after major life changes and get my 3d stuff maker running.
I bought this as a kit almost 4 years ago now and had issues with feed. Ordered some replacement parts (wrong style ) tried to call tech support (major fail ) troubleshooting issues myself and decided problem was the cheesy hobs style feeder. Still wanted to make it work (fail) did more research decided to go to a direct drive feeder and now I have the problem of over feeding (firmware still set up for 3:1 reduction ) board is gen 6 any and all help appreciated. …thanks for reading. …Chris

You need to change the steps per mm on the extruder. Some firmware requires a new build with the correct steps. I always hated that so we (Printrbot) added an McDowell to change it on the fly and save to eeprom w/o requiring a recompile. You need to find this requirement first.

Does anyone know if mainline marlin offers that mcode? Or will it mean a recompile.

A hack would be to dual down the extrusion multiplier by 3x, but then you’d be out in left field :wink:

Thanks
Think the re-compile is only option but mfgr not open to me accessing the firmware so I have blank replacement board but no idea how to get firmware onto the darn thing? ?