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| Bloomers and cock ups learning to cut thread on the lathe |
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| Bangkok Mick:
Well as the title indicates I have been persevering and honing my skills on my new lathe and decided to try my hand at threading with a one point cutter tool instead of the tap & die method. Yesterday I have produced a couple of prototypes but could not get them to screw together no matter what I tried. I checked the pitch to insure my threads were straight and compared the diameter of both male and female threads and everything appeared to be at least a good effort for a beginner but nothing worked, as soon as I tried to screw one into another they bound up and joined one another crocked and simply did not behave as expected so I gave up and decided to try again with a fresh start tomorrow. Getting home from work today I tackled the problem again and realized that by turning the male and female threads using the lathe in the same orientation and direction on both cuts I was producing one right hand thread and one left hand thread that of course simply could not screw together. Having resolved this problem I have since turned and threaded a hollow brass bar that can be screwed together and the action is very smooth and satisfying. Cheers Mick |
| awemawson:
Well done - it's all a learning experience. |
| Jonny:
Good practice Mick and true its gratifying. Sounds like wrong hand tool on female thread? Done it all, wrong tips for thread on finished product to wrong pitch but right tip. Spindle startup 800 rpm on a short thread glad of foot brake. Check and check again no ones fallible. Dare say you have realised now that you can actually make your own matching male and female thread up, one reason I like metric. Gets a bit tricky say UNC with metric pitch. |
| Bangkok Mick:
Thanks for the feed back guys, learning must be the best part. Cheers Mick |
| awemawson:
When you stop learning you must have either stopped doing or listening or both :thumbup: |
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