Indexing System For The Lathe

Рет қаралды 3,286

The Hobby Machinist NZ

Күн бұрын

Пікірлер: 32

@billgilbride7972 7 ай бұрын

FOURTEEN INCHES!!! You have done an amazing job on this one. Once you are past the disc, it's all Gravy!

@thehobbymachinistnz 7 ай бұрын

Yes, it was large, and a lot of holes to drill. Thanks for watching.

@Rustinox 10 ай бұрын

Hell, you drilled holes for a lifetime on this one. Nice work.

@thehobbymachinistnz 10 ай бұрын

Thanks Michel. Yes, I didn't know when the drilling was going to stop... One thing I did not mention in the video is that I went through all of those holes manually in the drill press to drill them out to 4mm.

@Preso58 10 ай бұрын

Nice job, Jon. Congratulations on getting those hole patterns to work out. So much potential for a bad hole location, but it looks like 100% accuracy.

@thehobbymachinistnz 10 ай бұрын

Thanks Mark. I don't think I made a mistake. It was a lot of concentration for a few days.

@donmittlestaedt1117 10 ай бұрын

Thanks, I liked your project and narration.

@thehobbymachinistnz 9 ай бұрын

Thank you.

@MyMiniHomeWorkshop 10 ай бұрын

Very innovative, better you than me drilling all those holes, well done. 👍

@thehobbymachinistnz 10 ай бұрын

Thanks. I did not show it but I went through all of those holes manually in the drill press to drill them out to 4mm. Some would call me determined, others would call me crazy... I'm still trying to figure out which is correct.

@MyMiniHomeWorkshop 10 ай бұрын

@@thehobbymachinistnzMaybe a little bit of each 😁

@paulwomack5866 10 ай бұрын

The old school indexing arm didn't have your nice clamping. Where you're using a ball as the indexing object, the old technique used a finely tapered pin; the was affixed to a springy arm. If the arm was short, the entire arm was springy, in your case a spring "end" on a long rigid arm might be needed. The tapered pin made the hole size non-critical. The taper was slight enough that normal forces were not going to force the pin out (allow the disc to rotate slightly, very bad). The spring action mean moving the disc was quick and easy, and since the arm was normally NOT fixed radially, so you had to be careful to follow a row of holes consistently.

@thehobbymachinistnz 9 ай бұрын

Thanks for watching. The smaller indexing system that I made for my metal lathe has a spring loaded pin like your describe. I will be testing this ball bearing one as I need to do some practice. I think it should work ok, but we will see.

@paulwomack5866 9 ай бұрын

@@thehobbymachinistnz No, the style I'm thinking of is MUCH simpler - the pin doesn't move, and the arm itself is the spring. I found a video showing this on a wood lathe; kzbin.info/www/bejne/o3WtYpytj9qBbKs The pin is shown around 4:40 and the "how to use" sequence is around 7:50

@thehobbymachinistnz 9 ай бұрын

@@paulwomack5866 Ahh Mike Peace. I have watched a lot of his videos. I see now, it is just the springy arm that holds the pin into the hole. Thanks for the video link.

@paulwomack5866 9 ай бұрын

@@thehobbymachinistnz It's so elegant - instead of a massively rigid arm, with a separate linear spring loaded pin, just use a springy arm!

@timmienorrie 10 ай бұрын

👍👍👍👍👍

@thehobbymachinistnz 10 ай бұрын

Thanks.

@All.In.Good.Time. 10 ай бұрын

What club is the demo at?

@thehobbymachinistnz 10 ай бұрын

It is at the South Auckland Woodturner's Guild

@badjuju6563 10 ай бұрын

I think the indexing arm needs triangulation so it does not accidentally pivot and drift the effective angle of index. may also need to put a pin from the indexing wheel to rear of chuck so that. cant drift either.

@thehobbymachinistnz 10 ай бұрын

Thanks for your comments. The nyloc nut holds the arm plenty tight so I don't think I will get any movement there. I have used these types of indexing plates from other woodturners and the chuck hold it tight (unless you forget to tighten the chuck of course).

@paulwomack5866 10 ай бұрын

In use, the arm is fixed by a pin at both ends. It ain't going anywhere.

@thehobbymachinistnz 9 ай бұрын

@@paulwomack5866 Yes, that is correct.