[Issue#191] Probing widget on g2core does not set coordinate offset properly About GRBL HAL

Issue #191 | 状态: 已关闭 | 作者: mennodegraaf | 创建时间: 2017-08-25

标签: 🐛 bug

After playing around with a cheap chinese probe, I noticed that the CNCjs 1.9.7 probe widget does not set the coordinate offset properly. Probing works correctly, after that the coordinate offset is set with:

; Set the active WCS Z0
G10 L20 P0 Z20

This seems to be accepted by GRBL, but not by g2core 100.26. According to https://github.com/synthetos/g2/wiki/Gcode-Coordinate-Offsets#g10-ln-set-parameters the supported P codes are P1-P6 for G54-G59 respectively. By manually using P1 it is accepted by g2core.

#1 – cheton 于 2017-08-25

G10 L20 P- axes (P number is in the range 0 to 9) is a EMC2 (linuxcnc.org) standard. However, P0 is currently not supported by TinyG and g2core, I will change the P number to fit the corresponding G54-G59 work coordinate system in the 1.9.9 release.

#2 – cheton 于 2017-08-25

BTW, you can upgrade CNCjs to 1.9.8, it fixed some critical bugs especially for Grbl. Check out latest release notes at https://github.com/cncjs/cncjs/releases

#3 – mennodegraaf 于 2017-08-25

Great, thanks

#4 – aldenhart 于 2017-08-25

TinyG and G2core follow the convention that P1 is coordinate system G54 — going to P6 = G59.
This is how it’s defined for Tormach, Haas, Fanuc, and most of the “big boys”:
https://www.tormach.com/g10.html
http://diy.haascnc.com/node/30342#gsc.tab=0
http://www.cnccookbook.com/CCCNCGCodeG10SettingToolWorkOffsetsInGCode.html

By convention P0 refers to the active coordinate system. P0 is not currently implemented in TinyG and G2core.

#5 – cheton 于 2017-08-31

See CNCjs 1.9.9 release notes at https://github.com/cncjs/cncjs/releases/tag/v1.9.9

原始Issue: https://github.com/cncjs/cncjs/issues/191

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