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Re: Needle height calibration
Posted: Fri Nov 13, 2020 5:57 pm
by JuKu
Fyi, I don’t use either spring, the weight of the tube is ok for what I do.
Re: Needle height calibration
Posted: Sat Nov 14, 2020 12:36 am
by mikehibbett
Thanks. I used a tiny amount of pressure on the lower spring - hoping to not need to strip the head down. It's been behaving well on nozzle changes, so fingers crossed!
Re: Needle height calibration
Posted: Mon Nov 16, 2020 12:24 pm
by mikehibbett
The final solution was loosening the upper bearing and reseating it, giving the vacuum tube more freedom. I'm now up to 2.2mm backoff, and picking components up & dropping them without resets.