Which thread will make the cut?
I was asked to put a thread in the middle of a handwheel, but it became a marathon effort as the identity of the thread was not clear and then I found that the existing hole was too big for the newly discovered thread. Plenty of machining in this one!
Пікірлер: 8
Brilliant Michael, another job you’ve done for me & yes! it’s going to be perfect. I have no doubt at all. And lovely video production too.
@occasionalmachinist
2 ай бұрын
Strangely enough, once the thread was identified, the nut was relatively straight forward. Sometimes, it's all in the preparation.
great job!
@occasionalmachinist
2 ай бұрын
Thanks.
a good job! i was glad to see you and i still use HSS ground tips for threading, i thought i was the only fool!(LOL) cheers ( Michael?)
@occasionalmachinist
2 ай бұрын
For the amount of thread cutting I do, HSS is fine. With the jig on my surface grinder I can get a really good grind too, so no problems with wonky profiles. (yes)
Nice work, as usual. I was concerned when you started talking about the cast hub as your reference for where the bored hole needed to be. I would not trust any casting, instead using the rim (where one's hands grip the wheel, ie, the functional element) as the reference to centralise and square to. I expect it all worked out fine anyway.
@occasionalmachinist
Ай бұрын
I'd agree about a cast feature not necessarily being reliable. The hole for the nut is square to the rim and evenly spaced in the hub. As it is a slow speed operation, I'm not overly concerned about the rim being exactly central to the axis of the nut - I think it will be good enough. Interestingly (and bearing out your concerns) when I put the machined nut with flange into the hole I'd bored, I discovered it was not sitting evenly. That is, the surface of the flange was not parallel to the plane of the rim.