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by Bill Shields
Thu Nov 30, 2017 10:27 am
Forum: Live Steam
Topic: Southern Valve Gear
Replies: 15
Views: 616

Re: Southern Valve Gear

so you bell crank angle as I would describe it is 14.9 degrees....close enough to 15 degrees for negotiation(s). The original drawing(s), which are not the clearest, appear to show either 15 or 16 (runny ink on the vellum)...
by Bill Shields
Thu Nov 30, 2017 8:56 am
Forum: Live Steam
Topic: Southern Valve Gear
Replies: 15
Views: 616

Re: Southern Valve Gear

that's cool. I have a working example of the gear that I am going to use -> but because of some minor differences between center of piston and valve seat surface, have to re-design the gear. One thing that I have learned is that as the suspension moves up and down, so does the valve timing. I had no...
by Bill Shields
Thu Nov 30, 2017 7:47 am
Forum: Live Steam
Topic: Southern Valve Gear
Replies: 15
Views: 616

Re: Southern Valve Gear

I am currently working on a 1" loco with Southern and appreciate what you are showing.

Have you finished the final design of the bell crank, which has a critical dimension (or two)...which as you say, makes the VG not 'kittable' since each loco will be a little different.
by Bill Shields
Thu Nov 23, 2017 9:49 pm
Forum: Live Steam
Topic: Unknown Item
Replies: 6
Views: 789

Re: Unknown Item

which is why God made magic markers, luggage tags, Tupperware tubs and old olive jars..

Tag everything and if / when the tags are rotten and fall off...is time to recycle the metal into something useful.

Don't be Mottai nai
by Bill Shields
Thu Nov 23, 2017 9:44 pm
Forum: Live Steam
Topic: Worthington pump?
Replies: 17
Views: 741

Re: Worthington pump?

The concern with the horizontal duplex pump is -> where do you put it? Consider the length and width

if you want to go that way and cannot find plans, you can take the BvB pump, lay it on it's side and.....
by Bill Shields
Thu Nov 23, 2017 9:37 pm
Forum: Live Steam
Topic: Whatever happened to?
Replies: 5
Views: 749

Re: Whatever happened to?

Dave S can respond relative to Hickory Ridge and Mercer Loco...
by Bill Shields
Thu Nov 23, 2017 9:14 am
Forum: Live Steam
Topic: Unknown Item
Replies: 6
Views: 789

Re: Unknown Item

which makes them available for another project -> I have tons of that stuff in my shop -> wanna trade?
by Bill Shields
Wed Nov 22, 2017 9:44 pm
Forum: Live Steam
Topic: Unknown Item
Replies: 6
Views: 789

Re: Unknown Item

They appear to be pieces of sheet metal waiting to be used on a DIY project
by Bill Shields
Wed Nov 22, 2017 9:28 pm
Forum: Live Steam
Topic: Tapping Pipe Fittings
Replies: 20
Views: 1034

Re: Tapping Pipe Fittings

As a general rule, when working with any taper pipe thread die - you work to flush and call it quits...no point in going any further. as already described, run the tap in, then perhaps wrap it with some tape for a reference for the next time when you don't remember the bad thing about all of this is...
by Bill Shields
Tue Nov 21, 2017 9:31 am
Forum: All Things CAD and CAM
Topic: Solidworks question
Replies: 13
Views: 487

Re: Solidworks question

Autodesk appears to be migrating in the direction of Fusion.

several of their 'independent' offering capabilities are showing there
by Bill Shields
Mon Nov 20, 2017 9:05 pm
Forum: Home Shop CNC
Topic: Ball Screw Pitch
Replies: 11
Views: 345

Re: Ball Screw Pitch

actually you want an encoder WITH a zero pulse index point so that you can reliably find home every time.
by Bill Shields
Mon Nov 20, 2017 2:22 pm
Forum: All Things CAD and CAM
Topic: Solidworks question
Replies: 13
Views: 487

Re: Solidworks question

basically....

for the casual user, there is little that Fusion 360 doesn't offer...

although my opinion may be a little biased

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