I'd been having some trouble spinning my growths using the new centrifuge downstairs. Somehow, when depositing my growth into the centrifuge capsule, it would often get stuck on the lip of the capsule and I would waste valuable seconds poking it to make it go in. This happened several times before I realized that the capsules had not been machined exactly to specifications. While the upstairs, original centrifuge capsules have slanted lips, the ones on the new capsules are completely horizontal - thus providing a ledge on which my growths can get stuck.
Since I realized this, I've been bringing one of the old capsules downstairs to do my spin. Eventually I'll go to the machine shop to see if the new capsules can be fixed.
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Oh - it's possible this is the same problem I have. A second person has often needed to push in the quartz ampoule & prevent it sliding out when I tip it in. I checked, and the crucible lip is perfectly horizontal. In what way is the original crucible lip slanted?
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