Hi all, I posted the 3D Cad system I used to generate a spur gear. The drawing is set up for center full depth cut. The red cutter is moved forward like a...
Hi all, I just uploaded a file to the files/gears section. It is the set up to generate a bevel gear in cyberspace. The orange circle is a rotary table and the...
http://www.shaylocomotives.com/data/lima/sn-10.htm A good friend of mine approached me today about wanting to build a 5" scale, 15" gauge model of Shay CN-10....
Lima Shop Number 10. The LLW Numerical Record simply has: Order Number 10 Shop Number 10 Road Number - Built for G. & J. Backus (MICH) Gauge 36" Type Shay ...
David, Thank you for the warning on the scaling of the photo. I've made those mistakes in the past. I was taught that to get it right you paste the photo onto...
Dan, Wholy mackrel! Photo's avaliable. Lists of specs. Unique solid Left Truck Box and aligned arch bars. Bits of Shay history. You're getting me all worked...
... Dan, Heard back from Mr. Bates. I'll be ordering the Builders photo soon (along with a couple of other shays) but he can't find print T-1254 in the...
Curtis, I drew the rest of the cranks on T-1254 today. I had already drawn crank #1 the 2-7x7 crank and had atempted #3. I got the numbers to add up this time....
Hi All, I posted a drawing for the early Shay two cylinder crank shafts. It looks like #1 was put in last, and cleverly rotated to save paper. This was common...
Curtis, You might have noticed that the steam chest extends beyond the cylinder bore on the top and bottom in the photo of shop number 10. Well this is because...
Hi All, I scanned the gear I generated with the shaper a few weeks back. It is not much of a gear but, I learned two things, one that the cable system has to...
Dan, I wonder if even this removes the pleasure of 'making it yourself', these special bits aren't a case for visiting one's local CAD/CAM machining centre...
Pete, The gear is not good proof but I am actually a better machinist that 3D Cad draftsman. I have not drawn much with 3D Cad and attempting a bevel gear...
Dan, If you can use AutoCad in 2D, 'Inventor' (put out by AutoCad I think?) is reputedly a small step, and is said to be easier (which wouldn't be hard?) to...
Hi all, Could one of you verify that S/N 3354 used gear #20? I am asuming this because I know that the number of teeth match, both were 20 and 49. However that...
Hello all, I have just now added some new files for the WM #6 shay trucks, and drawings to illustrate the bevel gear generator patented by Bilgram. Regards, ...
Dan, Yes, the S/N 3354 and the S/N 3156 used the #20 gear (Lima Card # 743-A-5052). I have a copy of the plan dated 8/26/21. Here are some of the pertinent...
Dan, I did notice the extended steam chest, but never suspected a double slide valve. I've sent money to SitG to get copies of all the articles that you've...
T see the entire dimensioned drawing for the WM#6 gear wheel check out drawing 743-5052-49 sheet 1 in the files section under "WM#6 trucks". While there take a...
John, Thanks for the answer and the Lima Locomotive Works drawing reference. I will add that one to the gear database soon. The the pitch diameter of the...
Curtis, I ordered a copy of the photo of S/N 10 from ACHS while he had the negative out and it came in the post today. I have always liked the early 2 cylinder...
Hello again, The pitch (10 d.p.)is noted on the face view in drawing 743-5052-49 sheet 1 of 3; while the face length is produced by the dimensions on the gear...
What sort of a speed do you expect with a 2:1 ratio. Some club tracks run fairly quickly, like the one in Montreal, which may average 7.5 mph. Has anyone...
Hello agian Rich, I thank you for sharing your fine scale model drawings, but as good as they are they do not answer the guestion of what are the pitch...
Hello again On the 1/8 scale model gears for the WM#6 truck frames the diametral pitch was chosen at 10 since this is a common size and tooling might possibly...
Bill, I assume that the track you mentioned is 1/8 scale, so that 7.5 mph would be 60 mph full scale which is way way to fast for a Shay. I do not know the max...
Bill, One of my customers, who may be on this list already, has calculated this out for the 1.6" scale model. He came up with 616 feet per minute or 7 mph. ...
