Can anyone confirm or deny that on a Bridgeport series1 with (what used to be) a 2J head, the back-gear drive-train is running 100% of the time the spindle is regardless of the position of the back-gear lever?
I'm fairly certain it does but wanted to confirm before i disconnected my one - I only run pretty much flat out now since CNC'in the old girl and the back-gear drive seems to be the source of most of the heat and noise in the head.
There are no vari-discs anymore as I run 1:1 toothed belt drive and also no quill power feed stuff up there as its' CNC now.
Thanks
I'm fairly certain it does but wanted to confirm before i disconnected my one - I only run pretty much flat out now since CNC'in the old girl and the back-gear drive seems to be the source of most of the heat and noise in the head.
There are no vari-discs anymore as I run 1:1 toothed belt drive and also no quill power feed stuff up there as its' CNC now.
Thanks
Comment