Search found 904 matches

by RET
Fri Feb 26, 2021 8:00 am
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 126
Views: 6754

Re: 3/4" Raritan 2-4-0 build.

Hi shild, Being a relative newcomer, you don't have a history on chaski. Since I have been watching and contributing for at least 15 years now, I can tell you that Harold is definitely one of the ones to listen to. As has been said, we are all fortunate to have him as a moderator and contributor. If...
by RET
Tue Feb 23, 2021 4:54 pm
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi Steamin, Glad you got it sorted out. My hat's off to you. The suspension has to be flexible so the wheels can follow the track. I have found that as long as that is possible, the locomotive will stay on. It may bounce around all over the place, but it won't come off. Best of luck. Richard Trounce.
by RET
Tue Feb 09, 2021 4:34 pm
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi Steamin, It looks as though you and Bill have pretty conclusively eliminated axle #1 as the problem. Perhaps you can check axle #2 the same way and although #2 and #3 seem to be alright, it would be interesting to do #3 as well. The binding has to come from somewhere and its just a question of el...
by RET
Mon Feb 08, 2021 2:42 pm
Forum: Live Steam
Topic: Could I get some lessons about shopping for a locomotive build?
Replies: 27
Views: 2147

Re: Could I get some lessons about shopping for a locomotive build?

Hi shild, You are at the stage where you don't even know what you need to know yet. Don't sweat it and just be patient, we have all started in the same place and you will be making the same journey that we did. Because we all have traveled the same road that you are starting down, you will find that...
by RET
Sat Feb 06, 2021 8:05 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 126
Views: 6754

Re: 3/4" Raritan 2-4-0 build.

Hi shild, Like Greg, I also use the cadmium version, it flows easier and as the name implies (easyflow), it is easier to use. I've been doing this for 40 years with no ill effects. On the other hand, if I were building a boiler, it probably wouldn't be such a smart idea. Another characteristic of si...
by RET
Sat Feb 06, 2021 4:19 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 126
Views: 6754

Re: 3/4" Raritan 2-4-0 build.

Hi shild, Soft solder and silver solder are totally different worlds and the techniques used are very different. Most people know how to soft solder (electrical experience, soldering gun, etc.). but that doesn't necessarily help you with silver soldering. Greg's instructions are a big help and I wou...
by RET
Fri Feb 05, 2021 5:18 pm
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi Steamin, I see there are center drilled holes in the ends of axle #1. What measurement would you get if you use number drills to see which one just fits in the bottom of the center drill hole in the axle (using the drill shank) and then use a dial caliper to measure over the outside of the crank ...
by RET
Wed Feb 03, 2021 4:54 pm
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi Steamin, An easy way to check the crank pin radius would be to use a depth gauge to measure from the wheel tread to the crank pin on both sides. You know (or can measure) what the wheel diameter is, so calculating the crank pin radius should be pretty easy. The important thing is to see what the ...
by RET
Tue Feb 02, 2021 11:26 pm
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi Steamin, It took a while, but I think I've figured out what's going on with your locomotive. If you look at your "line graph," it tells you pretty much everything you need to know. On the front axle, the quartering is off a bit, but the crank pin radius is wrong too. By the way, when you are sett...
by RET
Sun Jan 31, 2021 4:37 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 126
Views: 6754

Re: 3/4" Raritan 2-4-0 build.

Hi Shild, How long should a tap last before you throw it away? The sets I have (I've described them previously), I've had for 40 years and they still work just fine. They are all the best industrial grade you can get (Butterfield HSS). Always buy the best high speed steel taps, dies and drills. If y...
by RET
Sat Jan 30, 2021 4:38 pm
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi, If you are going to make adjustable side rods, once you have adjusted them for the best performance you need to measure the center to center distance. Make two pins that are a close fit with the crank pin holes in the adjustable rod (only one or at the most two thou clearance on the pins in the ...
by RET
Fri Jan 29, 2021 6:16 am
Forum: Live Steam
Topic: Mystery bind in wheel/rod motion
Replies: 44
Views: 4339

Re: Mystery bind in wheel/rod motion

Hi Steamin, I agree with Pontiacguy1 that you shouldn't have opened up the pedestals, they were fine the way they were. What you might try is to remove one of the side rods between #1 and #2 axles (since #2 and #3 axles seem OK). From what you say, that should allow everything to roll easily. Next, ...