Search found 843 matches

by BigDumbDinosaur
Fri Jan 17, 2020 12:00 am
Forum: The Photo Album
Topic: Amazing machine work
Replies: 48
Views: 9750

Re: Amazing machine work

Awesome plane Glenn and I'm more than impressed. A low pass with a Merlin at full throttle has to be about the best sound in the world. That's even better than a NHRA nitro engine at full throttle in my opinion. I'm partial to a low pass with a Pratt R2800 at full power, bolted to the front of a Co...
by BigDumbDinosaur
Wed Jan 15, 2020 6:17 pm
Forum: Milling Machines
Topic: Broken Hearted... My new to me 1942 Van Norman No.12 Spindle Ring and Pinion shot
Replies: 22
Views: 545

Re: Broken Hearted... My new to me 1942 Van Norman No.12 Spindle Ring and Pinion shot

They look like spiral mitre. Seriously doubt that van Norman actually made their own gears. look here in the Boston Stock Gear section for SPIRAL MITRE GEARS: 2:1 / 1:3 / 1:1 ratios https://www.bostongear.com/ecatalog?page=product&cid=bevel_miter_gears_straight_spiral&id=HLSK102Y-L you will find so...
by BigDumbDinosaur
Wed Jan 15, 2020 6:14 pm
Forum: Milling Machines
Topic: Broken Hearted... My new to me 1942 Van Norman No.12 Spindle Ring and Pinion shot
Replies: 22
Views: 545

Re: Broken Hearted... My new to me 1942 Van Norman No.12 Spindle Ring and Pinion shot

Might be, from another Van Norman No. 12. These look hypoid to me. It would be great if deep in lower levels of stock gear parts, a set was found. They do not appear to be hypoid—hypoid gearing is not found much in machine tools. The appearance and helix angle suggest to me they are spiral bevel. B...
by BigDumbDinosaur
Thu Jan 09, 2020 12:44 pm
Forum: Live Steam
Topic: Gordon French
Replies: 4
Views: 516

Re: Gordon French

I was very sorry to learn of Mr. French's passing. Those of us who have worked with computers many years (I started on them in 1970) have long known about the Homebrew Computer Club and its role in shaping the direction of small computers. Mr. French, being one of the "founding fathers" of the homeb...
by BigDumbDinosaur
Wed Jan 01, 2020 1:49 pm
Forum: Live Steam
Topic: Free 2D CAD Software?
Replies: 20
Views: 1498

Re: Free 2D CAD Software?

ChuckHackett-844 wrote:
Wed Jan 01, 2020 10:58 am
Fusion 360 is free as long as you certify that you make less than $100,000 :)
I suspect that would describe most of us around here. :roll:

Happy New Year...and no, it's not the start of a new decade. :D
by BigDumbDinosaur
Sun Dec 29, 2019 4:02 am
Forum: The Junk Drawer
Topic: Merry Christmas
Replies: 18
Views: 1338

Re: Merry Christmas

My partner of 12 years underwent brain surgery on 12/12 for a glioblastoma. I am very sorry for your partner and you. I wish you both the best. For those who aren't familiar with it, glioblastoma multiforme is an aggressive form of brain cancer that is not well-understood and difficult to treat. Su...
by BigDumbDinosaur
Mon Dec 16, 2019 1:07 am
Forum: The Photo Album
Topic: Amazing machine work
Replies: 48
Views: 9750

Re: Amazing machine work

Thanks for the extra history BDD. And I hadn't known that 1913 date was before there start on aircraft engines. Pratt's first engine, the "Wasp," military designation R-1340 (R means radial, 1340 is the engine displacement in cubic inches), came off the drawing board in 1925. Rated takeoff power wa...
by BigDumbDinosaur
Sun Dec 15, 2019 2:02 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 48
Views: 9750

Re: Amazing machine work

Here is a PDF link with a facility description. file:///C:/Users/nwrai/Downloads/052_Jackson_Prairie.pdf A link pointing to a file ensconced on a hard drive isn't going work over the Internet. :D I tried to find something to link easily to that described the facility but could not find anything of ...
by BigDumbDinosaur
Sun Dec 15, 2019 12:44 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 48
Views: 9750

Re: Amazing machine work

Afaik P&W is credited with the invention of the jig borer in 1913. There is some evidence that the jig borer was independently developed in Switzerland around the same time. P&W was the first large-scale user of the machine, well before they got involved with building aero engines. A former employe...
by BigDumbDinosaur
Sun Dec 15, 2019 12:34 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 48
Views: 9750

Re: Amazing machine work

curtis cutter wrote:
Sun Dec 15, 2019 10:07 am
Here is a PDF link with a facility description.

file:///C:/Users/nwrai/Downloads/052_Jackson_Prairie.pdf
A link pointing to a file ensconced on a hard drive isn't going work over the Internet. :D
by BigDumbDinosaur
Thu Dec 05, 2019 5:10 pm
Forum: Live Steam Marketplace
Topic: Six Wheel Buckeye trucks
Replies: 7
Views: 1583

Re: Six Wheel Buckeye trucks

theg8nw wrote:
Thu Dec 05, 2019 7:19 am
Yes I did try tombeeonline and they emailed me back saying "we no longer sell the semi finished kits.  We only sell the finished trucks.  We do not sell air brake kits for buckeyes."
I guess things have changed since Tom sold the business. :?
by BigDumbDinosaur
Thu Dec 05, 2019 1:41 am
Forum: Live Steam Marketplace
Topic: Six Wheel Buckeye trucks
Replies: 7
Views: 1583

Re: Six Wheel Buckeye trucks

theg8nw wrote:
Wed Dec 04, 2019 11:03 pm
Who out there offers Six Wheel Buckeye tender trucks as rough castings or semi finished such as wheels and axles done, and with air brakes?
1-1/2" scale 7 1/2" gauge

Or does anyone have a set of castings sitting on the shelf ?

Thanks
Have you looked at Tom Bee?