- Variable spindle is now enabled by default. Z-limit(D12) and spindle enable(D11) have switched to access the hardware PWM on D11. Homing will not work if you do not re-wire your Z-limit switch to D12.
咁就 XYZ 了, 用緊舊既 CNC Shield 點算?
Homing 都事少, 轉左 D11 同 D12 就 大鑊, 針腳變左, 連訊號都唔同左.
平時主軸都全開, 仲有時用激光頭, 唔需要變速, 用 relay 控開關就夠了.
最慘係佢轉左 PWM output, 同 Z-limit 調轉插都唔 work (PWM 控 relay 唔得)
買左塊舊既 CNC Shield 板咪廢左?
好在 GRBL 都預左我呢條 cheap 精, 死都要用舊野 (無錢換新野), 佢都留番一手比我玩.
- download GRBL 既 source. https://github.com/grbl/grbl
- 爆開個 zip 將 grbl 既 folder 抄去 arduino 既 libraries folder 下面
- 打開佢個 config.h, comment 左呢句野:
#define VARIABLE_SPINDLE // Default enabled. Comment to disable. - 開 Arduino, 再 load Example: grbl->grblUpload
- 好似平時咁 set 好 port 同 板, upload 上去就得
改完之後, 就可以用番舊既 CNC Shield 玩了.
GRBL 的接腳資料: GRBL's Pin