khani3s / wm3020

wm3020

Processor

STM32F103C8T Clone

Pin	Description
1	VCC
2	GND
3	GND
4	spindle_enable
5	osc_in
6	osc_out
7	e-stop
8	GND
9	VCC
10	step_X
11	step_Y
12	step_Z
13
14	dir X (-X=3.3v)
15	dir Y (-Y=3.3v)
16	dir Z (-Z=3.3v)
17
18	spindle_direction (M4)
19
20
21
22
23	GND
24	VCC
25	x limit - PORT1(1)
26	y limit - PORT1(2)
27	z limit - PORT1(3)
28
29	spindle_pwm
30
31
32
33
34	ST-LINK (4) SWDIO
35	GND
36	VCC
37	SWCLK - ST-LINK (2) / HOME
38	step_enable
39
40	coolant (M8)
41	pause - hold/door
42	resume - start
43	reset - rst
44
45	BOOT 0 - ST-link (1) GND
46	probe - PORT1(7)
47	GND
48	VCC

Board

Driver Chip: TB67S109AFTG

CAD Model

PSU

Model: CNC-600D24+48ADJ Output 1: +24V 8A Output 2: +48V (Adjustable) 7A