Search found 744 matches

by RET
Tue Sep 25, 2018 9:16 am
Forum: Lathes
Topic: Rebuild a Heavy 10L or add a small lathe?
Replies: 12
Views: 343

Re: Rebuild a Heavy 10L or add a small lathe?

Hi Dianne, The headstock bearings on my South Bend also have a few thou play, but if I try to tighten them up by playing with the shims, the bearings start to run a bit warm. Plain bearings need a little clearance to work. I find I can do anything I want with the machine. Some people have made a car...
by RET
Mon Sep 24, 2018 7:18 pm
Forum: Lathes
Topic: Rebuild a Heavy 10L or add a small lathe?
Replies: 12
Views: 343

Re: Rebuild a Heavy 10L or add a small lathe?

Hi Dianne, I have a 13 1/4," WW2 South Bend. It has more wear on the bed than yours but still does a good job. The spindle bearings are OK. However, I had a problem with the cross slide dovetails being "hour glassed" so I made a cutter to match the dovetail angle and used the Bridgeport to remachine...
by RET
Sat Sep 22, 2018 6:36 pm
Forum: Live Steam
Topic: L.E. American & Feedwater?
Replies: 22
Views: 822

Re: L.E. American & Feedwater?

Hi Dianne, You may have a number of problems. First; yes you definitely need to limit the ball travel. If you don't, it takes too much time when the ram reverses for the pump suction to pull the ball back onto the seat. Look at it in terms of ram travel vs ball check travel. If the ball lifts a lot,...
by RET
Sun Sep 16, 2018 10:08 am
Forum: Live Steam
Topic: Live Steam CNC Defender
Replies: 14
Views: 783

Re: Live Steam CNC Defender

Hi, CNC doesn't really need defending, but it does open up a whole new world. Things that can be very difficult or impossible to do with conventional machines are easy with CNC. Even writing "G" code isn't hard until you get into the really complex stuff. CNC doesn't replace conventional machining, ...
by RET
Mon Sep 10, 2018 8:02 am
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 2004

Re: Re-facing Slide Valve & Ports

Hi David, What you say makes sense. At least 10 years ago I made 3 lubricator pumps and put two of them on the 3 1/2" gauge Boston & Albany (one on each side). They worked fine, the only issue I had was with the discharge check valve sealing. The least bit of dirt would cause the check valve to leak...
by RET
Sun Sep 09, 2018 10:40 am
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 2004

Re: Re-facing Slide Valve & Ports

Hi, Two things: Does your locomotive have "snifter valves"? If it doesn't, then you could be drawing ash in through the blast pipe as far as the exhaust port. Over time that could cause your problem. Second, Are both parts wearing equally? If the port faces are wearing more, then there could be dirt...
by RET
Mon Sep 03, 2018 6:14 pm
Forum: Live Steam
Topic: 3/4" Scale Coupler Update
Replies: 19
Views: 2657

Re: 3/4" Scale Coupler Update

Hi RN, When you have the proper equipment, it isn't really much harder to produce interchangeable parts than it is to custom fit each set of parts, one to another. You just have to make accurate drawings in CAD that include all the critical dimensions, then use digital readouts and CNC to produce th...
by RET
Mon Sep 03, 2018 9:48 am
Forum: Live Steam
Topic: 3/4" Scale Coupler Update
Replies: 19
Views: 2657

Re: 3/4" Scale Coupler Update

Hi Harold, I made a mistake with the last addition and had to redo it so you can see that it appears twice, the first time without pictures (6:22 pm. version). Could you please remove the "no picture" version and leave the second one that has pictures? Thank you. Richard Trounce. Done! :wink: H
by RET
Mon Sep 03, 2018 9:29 am
Forum: Live Steam
Topic: 3/4" Scale Coupler Update
Replies: 19
Views: 2657

Re: 3/4" Scale Coupler Update

Hi Harold,

Thank you for your kind words. They are very much appreciated.

Like most contributors on this website, I do things for my own satisfaction, but it is still nice to have the approval of others.

Richard Trounce.
by RET
Sun Sep 02, 2018 7:13 pm
Forum: Live Steam
Topic: 3/4" Scale Coupler Update
Replies: 19
Views: 2657

Re: 3/4" Scale Coupler Update

Hi, This is the final addition to bring everything up to date. Here is a different view of the CNC fixture that holds the knuckle while the tail is being machined. knucle tail machining fixturea.jpg The little button was added to give more support to the tail as it is being machined. If you look clo...
by RET
Sun Sep 02, 2018 11:13 am
Forum: Live Steam
Topic: 3/4" Scale Coupler Update
Replies: 19
Views: 2657

Re: 3/4" Scale Coupler Update

Hi, Here is the next installment. Here's what the partly finished nine looked like (no locking tails silver soldered on yet). Finished knucles without tailsa.jpg The next step was to silver solder 3/16" thick bits of steel in the middle of the coupler so that I could use CNC to cut the lock form as ...
by RET
Sat Sep 01, 2018 8:47 pm
Forum: Live Steam
Topic: 3/4" Scale Coupler Update
Replies: 19
Views: 2657

Re: 3/4" Scale Coupler Update

Hi, I see its been about a year and a half since I last added anything to this thread. I kept working on the couplers intermittently, I just haven't added anything. Now I'll add the coupler knucle fabrication. Knuckle Fabrication I used Don's sketches to make the knuckle drawing (it shows an end vie...