orcinus wrote:Call me crazy, but i don't feel comfortable having the whole gantry weight rest on the nozzle tip in order to calibrate the Z.
If i understood the idea correctly, this actually rests the whole gantry weight on the nozzle tip EVERY TIME you calibrate.
Unless it's just meant as an emergency measure, but then - what's the point, it's as good as having it float mechanically when the nozzle hits the bed.
TLHarrell wrote:Best method for this, adapted from the CNC industry, would be to have a touchoff location with a spring mounted contact. The system would move over the plate, feed down at a moderate rate until contact is made, lift a short distance, then touch back off at a crawl. The plate would need to be mounted in a way to allow it to be adjusted to match the bed height.
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