Search found 1340 matches

by rkcarguy
Wed Nov 20, 2019 7:45 pm
Forum: Live Steam
Topic: Verifying Blast nozzle height
Replies: 28
Views: 2929

Re: Verifying Blast nozzle height

Insulation always helps. I built an outdoor wood stove that had an exchanger in it for a hot tub...think I've spoke of that before. Originally it just had fire brick on the bottom, then I added some on the sides and then finally the back once I could cut those to fit. The difference in the fire was ...
by rkcarguy
Wed Nov 20, 2019 5:42 pm
Forum: Live Steam
Topic: Do wheels have to be cast iron?
Replies: 15
Views: 1973

Re: Do wheels have to be cast iron?

My opinion, no. I'm using steel for all my wheels. It has better grip, is stronger, and has better wear characteristics than cast iron. I have access to a laser through my workplace and have them cut me blanks from 1" plate. Then I bore/ream the center hole, drill a drive dog hole, and slide them on...
by rkcarguy
Wed Nov 20, 2019 5:34 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 2384

Re: Crank Pin Alignment

Also, use woodruff keys. Ive seen square keys work loose and start eating into the back side of the siderods. +1. I refuse to use that continuously slotted axle shaft material for that reason. Nothing like having a key work it's way out into somewhere it's not supposed to be and wipe out a bearing,...
by rkcarguy
Wed Nov 20, 2019 5:27 pm
Forum: Live Steam
Topic: Verifying Blast nozzle height
Replies: 28
Views: 2929

Re: Verifying Blast nozzle height

Glenn, the location of the blast nozzle within the stack vertically is quite critical in my opinion(based on non-steam, yet similar industrial and mechanical work). Think about an airbrush or paint sprayer where the air pressure creates a vacuum and how picky that adjustment is of the needle to get ...
by rkcarguy
Tue Nov 19, 2019 4:29 pm
Forum: Lathes
Topic: Graziano SAG12
Replies: 47
Views: 3552

Re: Graziano SAG12

I think you should scrap it, I would be happy to come take it away for you......Just kidding:)
It sounds like an oddball transformer, but with some searching around hopefully you can find one...or two...to replace it.
by rkcarguy
Tue Nov 19, 2019 3:56 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 2384

Re: Crank Pin Alignment

You are always better off to have wheels keyed to the axles at 90 degrees. ..over time, without keys, any slip in the press fit between wheel and axle will result in a lame engine Even then, I've seen many posts here where builders have to file a key some thousandths of an inch to get them to dial ...
by rkcarguy
Tue Nov 19, 2019 1:34 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 2384

Re: Crank Pin Alignment

cbrew wrote:
Tue Nov 19, 2019 12:53 pm
rkcarguy wrote:
Tue Nov 19, 2019 12:33 pm
The important part will come when installing the wheels on to the axles, ensuring the crank pins are exactly 180* from each other.
180 degrees? wait what? :D
I'm off my coffee for medical reasons and therefore dumb lol, correct to 90*.
by rkcarguy
Tue Nov 19, 2019 12:33 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 2384

Re: Crank Pin Alignment

QUOTE: Using the picture above as reference, does it matter if the hole is placed a bit "above" or "below" the pictured center line as long as the center of the crank pin still is on the arc that is 5/8" from the center of the driver? Obviously center it the best you can, but any distance off would...
by rkcarguy
Tue Nov 19, 2019 2:05 am
Forum: Live Steam
Topic: Verifying Blast nozzle height
Replies: 28
Views: 2929

Re: Verifying Blast nozzle height

There is a fair amount of room for more tubes, but it's a bit late for that haha. Having looked at a bunch of different smoke boxes, the petticoat seams long/low. I would think that the nozzle just needs to be inside the stack/petticoat enough that it helps pull a vacuum on the stack so maybe you co...
by rkcarguy
Mon Nov 18, 2019 2:23 pm
Forum: Lathes
Topic: Taking Chinese 3 Jaw Metal Lathe chuck apart for cleaning
Replies: 12
Views: 4813

Re: Taking Chinese 3 Jaw Metal Lathe chuck apart for cleaning

If you do a lot of polishing or sanding on your lathe, the gritty dust can really get into the jaws and cause the chuck to bind up. I use light oil instead of grease as well, so that the chips don't stick. I'll also run compressed air while I'm boring a hole to blow chips out of the hole (inserting ...
by rkcarguy
Thu Nov 14, 2019 4:24 pm
Forum: Live Steam
Topic: Three Phase Generator Question
Replies: 15
Views: 2973

Re: Three Phase Generator Question

To the OP, I like the drone motor idea. No brushes to wear out, and windings are mounted solid while the magnets spin so there is no chance of throwing a winding. There are a bunch of sizes to choose from and they are cheap so I would think you should be able to find something that would work to pro...
by rkcarguy
Thu Nov 14, 2019 12:44 pm
Forum: Live Steam
Topic: Three Phase Generator Question
Replies: 15
Views: 2973

Re: Three Phase Generator Question

Please, get some more about brushless turbogenerators (TGs). You will get the same performance by using a simple gearwheel made of aluminium instead a sophisticated turbine wheel with blades. To seperate the generator (with bearings) from the steam turbine you may use piston rings in combination wi...