V3 of the BLTouch has an [Alarm Release & Touch mode](https://docs.wixstatic.com/ugd/f5a1c8_77037f55e5d542309d9fc178165c9f3f.pdf) to activate after the probe is deployed. If this mode isn't activated, the BLTouch keeps deploying, ends up detecting a collision and gets itself in error mode.
Tested on a Creality Ender-3.
For some probes like micro switches the full Z clearance raise between
probing attempts is not required while bigger Z clearance between probe
points is still needed to avoid clamps. The shorter Z raise within
multiprobing same point significantly increase probing speed and the whole
auto level process.
The timing value should be properly set for ALL boards. The compiler will check and set maximum step rate calculations based on those values.
Co-Authored-By: ejtagle <ejtagle@hotmail.com>
This is an initial cut for feedback.
Chamber temperature is currently reported along with hot end and bed
temperatures to serial. The format is just like that used for hot end
and bed temperatures, but using 'C' prefix. As there is no heater,
target is always 0. Is this appropriate, is there a better way to report
chamber temperatures?
Chamber temperatures are not reported on the LCD in any way.
When auto chamber fan is enabled, it currently just uses the same
temperature threshold as the other auto controlled fans.
As the chamber temperature is not connected to any heater, it doesn't
undergo mintemp/maxtemp monitoring. This would need to change in the
future if chamber heating became a feature.
Some fix-mounted probes need manual stowing. And after probing some may prefer to raise or lower the nozzle. This restores an old option but tailors it to allow raise or lower as preferred.
With this option enabled, Z won't ever be raised until after `G28` has been completed, and it won't raise if Z becomes unknown. This is good for machines whose beds fall when Z is powered off.
