Search found 126 matches

by djjh87
Mon Jul 04, 2022 6:07 am
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

A little more detail on the last post Eye up castings and mark center Drill and ream a shallow 1/8" hole for pin both ends Notice in previous pictures the chest is on match plate I used for cylinders . Drill pin location holes in plate Then all machining and drilling are matched While vertical mill ...
by djjh87
Sat Jul 02, 2022 10:55 am
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Thank you Russ.
In my mind I was going to make a cutter to run on the horizontal arbor with over arm support but the diameter was just a little big.
Started on steam chests but on hold now the vertical mill 2 speed switch is acting up so I ordered one. I hope it's that and not the motor.
Jim
by djjh87
Thu Jun 30, 2022 2:26 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Had to fab up a super fly. Worked good but .01 a cut at 40 RPM took a while.
Jim
by djjh87
Thu Jun 30, 2022 2:23 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

The finish came out nice.
This picture was not the final pass.
by djjh87
Sat Jun 25, 2022 3:57 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Got a few hours in this week
by djjh87
Wed Jun 22, 2022 3:16 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Here is .my solution to alignment and tie down. I think the most used machine in my shop is my Brown and Sharpe horizontal mill.
Jim
by djjh87
Mon Jun 20, 2022 7:15 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

It was time to check the fit in the frame and the front truck. Then some encouragement shots.
Jim
by djjh87
Sun Jun 19, 2022 8:22 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Machined the shoulder where the top frame clamps the cylinders down. I'm working on a quick and dirty fixture to hold it down to do the critical stuff.
Jim
by djjh87
Sat Jun 18, 2022 7:45 am
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

The front subframe dropped in with no issues. This is all done old school by dials and backlash I have never owned a dro. At times I sure would like one though.
Jim
by djjh87
Tue Jun 14, 2022 5:56 am
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Hi Harold, after mowing late afternoon I popped in the shop and tapped the holes and did not have a chance to test. According to Winton Brown engineering data page 36 1/4 NPT needs 3/8 deep to be tight. If I have to I will grind an old tap (if I don't already have one) and enlarge the threads.
Jim
by djjh87
Mon Jun 13, 2022 8:46 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Used a 2 flute 7/16 mill plunged 3/8. Tapped 1/4 NPT.
Drilled passage at 15 degrees. I based all lengths from faced head side.
This has got me thinking about drain cocks and
Greg's stacked cheeseburger snifter valves.
Jim
by djjh87
Sun Jun 12, 2022 5:21 pm
Forum: Build Log
Topic: 2 1/2" scale 4-6-0 build
Replies: 114
Views: 30442

Re: 2 1/2" scale 4-6-0 build

Oh I mentioned spacers possible earlier but with 3/8 plate I could take off 1/8 maybe 3/16 if needed.