Suddenly the banjo on my lathe won't stay tightened. When i push the lever down, and release my hand, you can see the lever end start to rise on its own.:shocked7fl: Any suggestions?
Actually, I think it happened suddenly right around the time my work piece slipped out the chuck. See my post on off center.Any accumulated debris on the underside of the cam? Sometimes grime can accumulate on the cam and cause the banjo to slip. I have also heard of bent cams that cannot be tightened properly. I am assuming you had no problems and slowly this problem manifested itself.....
What is a banjo?
The banjo slides on the the lathe ways holding the tool rest.What is a banjo?
I had a round nose scraper doing the hollowing, when it happened and I was being way to agressive with it. It started to chatter and I ignored it:sad9cd: and then all went to ....:BangHead: As soon as I get a chance to take it off, I'll let you'all know what I probably messed up:frown3qg:May have bent the cam when you lost grip on the chuck. Do you remember striking it?
I had a round nose scraper doing the hollowing, when it happened and I was being way to agressive with it. It started to chatter and I ignored it:sad9cd: and then all went to ....:BangHead: As soon as I get a chance to take it off, I'll let you'all know what I probably messed up:frown3qg:
So, is that the way it works on most lathes? Not eh specific degrees but the principal?Hey, I didn't know that either. Thanks for the tip (sorry)!
The catching on a rough spot was the reason it was working before the goblet broke. On this one, the internal desigh is definitely intended for the handle to be down at the 180 deg point. Now it makes me wonder about my tailstock:shocked7fl:Steve, I have not encountered the problem you described. But with most banjo mechanisms you just turn them until the cam is tight. If I am understanding what you are saying you found the cam was catching on a rough spot in the casting. That is not normal. With most banjo tightening mechanisms there is no specific angle or number of degrees you turn the handle to make it tight, it is just where you turn it until it becomes tight. Shoot Steve, I think all of the above means, I don't know for sure. Yeah, that is my best answer, I don't know.
That's what I had assumed but the Rikon is definetly not that way.But with most banjo mechanisms you just turn them until the cam is tight.