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On reading your comment about lathes being made in Yakima intrigued me (Igrew in in Spokane) so I did some sleuthing. The following was copied from practical machinist.com : The McIlvaney was last produced in Yakima Wa. sometime in the late 1970s. An owner of one told me that McIlvaney was at...

“The life so short, the craft so long to learn.”

Check Abenics Actuve Ball Joint Mechanism on You Tube.

I’m trying to visualize such a gear as drawn and I cannot. M.C. Escher might manage it. There are ‘ball gears,’ but the teeth are discreet diamond shapes.

Replacing the wipers would not be difficult. I had to remove, cut and pit the wipers back in place when I cut the scales to fit my milling machine, and then again when fitting a DRO on my lathe. It wasn’t hard at all to remove and put the wipers back in. As you have noted, the real problem is...

If you want copies of the relevant pages, message me.

Is your query just a hypothetical or do your have a specific need? If the latter, and if skew bevel gearing would do, Kokomo Hiraoka provided very detailed instruction on making skew beveled gears in the making of his Climax engine.

Thanks!

Anyone have experience with VoxeLab Aquila printers? My son has recommended it but my knowledge level does not even rise to know-it-something about 3D printing.

And another bit is added to my library of finishing techniques. Thanks, Basil! And what you said about taking a problem to bed, and waking with the solution. So True.

I had a huge collection of Model Engineer magazines, an almost full collection from volume 1 through 1990. When I decided I needed the space more than the magazines I tried selling them and got zero response from any place I advertised them — ME, Live Steam, Home Shop Machinist, eBay, etc. Of...

Yes, that’s what I did. You’re welcome! Gary

I’m not sure about the ‘emergency repair’ being the original intent of the segmented belts. My Hardinge TM mill had a segmented belt as original equipment for the primary drive, motor to counter shaft, Why it then had three standard v-belts from counter shaft to spindle I don’t know.

Here’s another, a 10:1 gear reduction with reverse that drives the lead screw. I forget who designed this, but it was in Model Engineer in, I believe, the 1980’s. With this the lathe’s tumbler gears are used only for threading.

I made a much smaller version of the same gearbox for my knock-off of the lathe milling attachment offered by Hemingway’s.

The manual that came with the gear cutter merely mentions the bevel gear attachment and gives no description or pictures. I’ve looked on line but have not found anything about it. My machine was made in 1953, so the lack of information is not surprising. As for gear boxes, I made a few. This...

I have three hob arbors, 8mm, 3/4” and 20mm. The sizes of hobs the machine can use range from 20mm in diameter to 1 3/4”. As for cutting worms, the arrangement of hob and blank is as you describe. They can be cut either by feeding axially, in which case the machine feeds automatically, or...

Here’s a photo of the gear cutting in it’s parking spot, where it sleeps under a tarp.. I put it in heavy machine casters, 700lb capacity per caster, and it is easy to move out for use. The other photo is of two commercial hobs, in the back, and one of the ones I’ve made using the form...

Timo, the gear cutter lives in the pocket between the shop’s tool-up door and the milling machine where it’s not easy to get decent photos. The photos below were taken while the machine was briefly moved outside for some need shop cleaning and are a bit washed out by the bright sunshine. The...