I *love* having a reversible spindle! It's really handy for power tapping, and on occasion good for threading with upside-down tools to thread away from a shoulder toward the tailstock.
One thing that matters though is if the spindle is a thread mount for chucks, you can only reverse it when using a collet chuck and only if that isn't the screw-on type.
(10-18-2016, 11:30 AM)johnobirches Wrote: [ -> ]What is the main drawback of not being able to reverse the motor?
It looks like the motor has been changed and is a non reversible type.
The reverse switch at the rear has been removed at some time.
Thanks
John
not being able to reverse the spindle while power tapping
Thanks for that folks.
The chucks I have are both screw on [don't have a collet chuck] but I'm probably a long way from being ready to power tap.
Best Regards
John
(10-19-2016, 02:06 AM)johnobirches Wrote: [ -> ]Thanks for that folks.
The chucks I have are both screw on [don't have a collet chuck] but I'm probably a long way from being ready to power tap.
Best Regards
John
I'd only reverse the spindle if there is a positive lock, such as a set screw, that secures the chuck to the spindle.
Its nice to have the parting tool set up on the top slide rack up-side down for quick parting off... or any tool for the matter it can make you go twice as fast.
Anthony.
Well I sorted some belts and got the lathe spinning.
I turned down some aluminium and made a plug to press out a bush from my AJS motorbike crank case.
Then flushed with success made a bearing on a rod push tool a-la John Mills to true things up in the chuck.
Some issues with wear on the cross slide and a little lumpiness in the carriage travel along the bed but overall I'm a very happy camper.
Thanks again for the welcome and support.
John
Great work John...
most of this is machining malarkey is common sense and not really hard and with a plethora of machining videos to watch on the tube you will get the hang of it... enjoy yourself brother..
All the best
Anthony..