Search found 5038 matches

by Bill Shields
Mon Sep 24, 2018 6:57 am
Forum: Live Steam
Topic: Coal purchase
Replies: 11
Views: 403

Re: Coal purchase

I guess you guys burn different anthracite than we do up here in the north-east.
by Bill Shields
Sun Sep 23, 2018 8:21 pm
Forum: General Discussion
Topic: Schematic Symbol questions
Replies: 13
Views: 314

Re: Schematic Symbol questions

the schematic is not going to tell you exactly what the component is - unless the schematic has a parts list attached. it is indeed some variety of proximity sensor telling the grinder to "feed at zero point" -> the sensor says "you are at the zero point"., but you are going to have to find a parts ...
by Bill Shields
Sun Sep 23, 2018 8:14 pm
Forum: Live Steam
Topic: Coal purchase
Replies: 11
Views: 403

Re: Coal purchace

anthracite burns just fine in a loco firebox.

Burn it in my 3/4" tom thumb and a 1" 2-4-0
by Bill Shields
Sun Sep 23, 2018 3:36 pm
Forum: Live Steam
Topic: L.E. American & Feedwater?
Replies: 22
Views: 736

Re: L.E. American & Feedwater?

I think that 2 x ball OD is too much.....will float around and beat the seat to death over time.

I typically like 1/32" hole diameter over ball diameter. It is more than enough
by Bill Shields
Sun Sep 23, 2018 10:40 am
Forum: Live Steam
Topic: L.E. American & Feedwater?
Replies: 22
Views: 736

Re: L.E. American & Feedwater?

8 or 10% is not critical...just keep it low so the ball does not float. These numbers are in LBSC stuff from before I was born.

Springs are more trouble than worth since pressure differeentials will take care of it.
by Bill Shields
Sun Sep 23, 2018 6:46 am
Forum: Live Steam
Topic: L.E. American & Feedwater?
Replies: 22
Views: 736

Re: L.E. American & Feedwater?

there is no need to reinvent the wheel here. a hard seat with the ball lapped to fit the seat and a lift of no more than 10% of the ball diameter is all that you need. a good way to do this is to glue a ball to a piece of brass tubing and use some lapping compound to mate the two together lift limit...
by Bill Shields
Sat Sep 22, 2018 9:13 am
Forum: Live Steam
Topic: Injector size for My Sweet William
Replies: 6
Views: 353

Re: Injector size for My Sweet William

fill the tanks with ice.....giggle

that is what we did in the desert
by Bill Shields
Thu Sep 20, 2018 5:10 pm
Forum: Live Steam
Topic: L.E. American & Feedwater?
Replies: 22
Views: 736

Re: L.E. American & Feedwater?

in general, you do NOT want an o-ring on the ram AND packing round the ram where it enters the body.

you will only build up pressure between and cause one to blow....or leak steadily
by Bill Shields
Thu Sep 20, 2018 6:33 am
Forum: Live Steam
Topic: L.E. American & Feedwater?
Replies: 22
Views: 736

Re: L.E. American & Feedwater?

Good luck with cramming an axle pump in there.

Properly done axle pumps have no more problems than any other part of a steamer...been using them for decades.

I am confused - If you added an injector...are you STILL having problems keeping up with water?
by Bill Shields
Wed Sep 19, 2018 8:56 pm
Forum: Home Shop CNC
Topic: Thread Milling
Replies: 20
Views: 884

Re: Thread Milling

That's a good example of tangencies...but care that you wear offset cannot exceed 0.0001 -> which may not be enough
by Bill Shields
Wed Sep 19, 2018 4:43 pm
Forum: Home Shop CNC
Topic: Thread Milling
Replies: 20
Views: 884

Re: Thread Milling

This is a case of the control not knowing what to do with cutter comp as described earlier. You might find it easier tp use G42 and put in a negative value for the offset. Some controls will handle it better. Another way to handle this is to break it into quadrants..some controls handle the LOOK AHE...
by Bill Shields
Wed Sep 19, 2018 10:43 am
Forum: Home Shop CNC
Topic: Thread Milling
Replies: 20
Views: 884

Re: Thread Milling

SOME controls, when activating G41/G42 and going directly into a series of more than 2 arcs (as you are here) at a sharp included corner, 'loose track' of where they need to begin without having a Y component in the initiation line. It is better (for the general control case), to initialize cutter c...