Quote Originally Posted by uncle_bob View Post
Hi

With a probe (any mechanical probe) you probably need the bed and carriage in a defined location as the warmup occurs. Where that is probably does not matter as much as it being the same every time. Most probes heat up more from the bed than from the extruder and that's why the bed to carriage relation matters.

Bob
Placing a piece of cork or even a piece of cardboard on the bed during warm up not only makes it heat faster and more evenly, it protects the probe from damage. On PLA it's not such a big deal but with ABS and 110 C bed temps it makes a big difference.