CNC drill/mill machine V2 – Electronics Part – Update

I designed the pcb for the stepper driver. It uses an L297 and L298 ic. The circuit I used:

Schema Stappenmotor sturing cnc L297 L298

(Clickable)

Stappenmotor sturing pcb cnc L298 L297

(Clickable)

 

Partlist:

Name:
Value:
R1, R2, R3, R4 1R 3W
R5 100R 5W
R8, R9 10K
R10 25K trim potmeter
R11, R12 22K
C1 1000µF 50V
C2, C3, C4, C5, C6, C7, C8 100nF
C9 3,3nF
D1, D2, D3, D4, D5, D6, D7, D8 MUR440RL
IC1 7805
IC2 L297
IC3 L298
J1, J2 AMP vlakstekker
J4 3p pin header
X1 3p printkroonsteen
X2 5p printkroonsteen
X3 fan connector
F1 4A fuse + holder
M1 40mm 5V Fan (optional)

 

stappenmotor sturing

stappenmotor sturing

stappenmotor sturing

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