2014 POTD Thread Archive

Hey Phil, you caught me. I did only drill the one plate to date. I thought I would give the whole thing a shake-down before sitting down to the other 400 or so holes.
Now as to the hex, why would you add that kind of pressure to a newbie? :)

Bob
 
Hi Jake, I didn't shop around, I went straight to Amazon and up it popped. They were both manufactured by Boston Gear, and I don't remember the price but it was fairly expensive. The worm is steel and the wheel is a brass or bronze.
I have watched a number of videos on hobbing your own wheels, and it looks like fun. That's on my list.

Bob
 
Awesome work man. I bet that plate make you go cross eyed all them holes. I'll be hobbing a gear this weekend. Looks easy enough
 
I was wondering if I should post the milling machine move to some forum where everything is not lost in this thread? Comments? Maybe the projects forum.
 
Nice hardinge.

f350ca said:
Hi Mike
It could be the same. This one is imported by Modern Tool in Alberta, they call it a 935vs. Had it about 12 years I think, great little machine.
The lathe I was unloading was a Hardinge HLV I picked up on auction last winter to replace a well used Colchester. The Hardinge needed a lot of attention but had very little wear, was stored in a government warehouse for decades apparently. After repairs and a paint job.

View attachment 86277

My other lathe is a Polish made one imported by Summit Machine tools. A 16 x 80 work horse.

View attachment 86278

Greg
Click to expand...
 
Aint there a rigger forum? I would simply because alot of guys need just that kinda help. I spent hours watching videos before I got my BP
 
Will you make it in brass? Aluminum? Please show us how it went.
I'd be interested to know how you make those first basic cuts (I can't remember what they are called) before you start hobbing with the worm.

Best wishes.
 
No real rocket science to what I'll do. I took the gear I had and rolled across some taps till one worked. In my case, a 24mm but I cant read the pitch. Coarse is all I know off hand. I'm assuming I will find the pitch and then find a nut thats thats the size gear I need and same pitch. Use tap drill size as my OD for my blank. It seems to me that a wheel gear is nothing more then a nut flipped inside out. So then I'll use my tap to cut the wheel I need like this

https://www.youtube.com/watch?v=XIzlg_uObwQ
 
CannonFodder said:
I'm getting close to finishing a dividing head that is pretty close to the unit prescribed in Gingery's Dividing Head and Deluxe Accessories. I generally like to use as much scrap as possible on these projects. So instead of casting the main frame in aluminum, I welded up some 1/2" steel from my scrap pile. I also like a variety of processes, so I also cast some parts in aluminum (like the hole-plates) and some in zinc (the worm gear carrier).

This is my first project on my new Rong Fu. It came with 3-axis DRO, and the hole-pattern calculator is really great.

I'm happy to answer any questions you have about this build. And I'll post again when I cut my first gear (or maybe a square head on a bolt :))).
Click to expand...

Awesome project, I would love to see more of it.
 
I watched the video, very cool. I like what you say about "a nut turned inside out", that makes sense and it's exactly what it looks like. The threaded rod for a worm gear is also a great application, I have never pictured that before either. Thanks for the lesson.

Bob
 
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