I have a 3040T 4 axis CNC and currently have grbl on an Arduino Nano connected to the DB25.
I was wondering if anyone has tried Machinekit on a CRAMPS board driving the DB25 directly instead of going inside the control box and replacing things. The DB25 has opto isolators on the DB25 inputs. Probably more of a question for Charles unless someone else is familiar with the drive capabilities of the BBB and input bufffering of CRAMPS. They are 4N26 - http://www.vishay.com/docs/83725/4n25.pdf DB25P wirings: >From Vide CNC LPT Pinout db25 Pin Description 1 A Enable 2 X Step 3 X Direction 4 Y Step 5 Y Direction 6 Z Step 7 Z Direction 8 A Step ** 9 A Direction ** 10 Reset / Abort / E-Stop 11 Z limit( Mach 3 video =X) 12 Y limit( Mach 3 video =Y) 13 X limit( Mach 3 video =Z) 14 X Enable 15 Probe 16 Y Enable( Mach 3 vidoe =Output1) 17 Z Enable 18 - 25 Ground [image: GRBL_Arduino_Nano_DB25_CNC_1.jpg] -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. To view this discussion on the web visit https://groups.google.com/d/msgid/machinekit/b45d62ef-0f72-44ad-a221-4791ad55b579%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
