Search found 1003 matches

by Carrdo
Mon Nov 12, 2018 12:56 pm
Forum: Live Steam
Topic: Soler II Pumps
Replies: 5
Views: 351

Re: Soler II Pumps

Perhaps the drawings could be offered for sale and people could continue constructing these pumps on their own.
by Carrdo
Fri Nov 09, 2018 6:10 pm
Forum: Live Steam
Topic: Weight Distribution Question on a Live Steam Locomotive
Replies: 10
Views: 505

Re: Weight Distribution Question on a Live Steam Locomotive

Hi Bill, I can tell you the dead weight of the Langworthy Hudson (as it is today) for example: Lead truck - 5 lbs Trailing truck - 10 lbs Complete engine weight (minus the leading and trailing trucks) - 108 lbs Total engine weight (with all of the details some of which I have yet to add) - 125-130 l...
by Carrdo
Fri Nov 09, 2018 3:21 pm
Forum: Live Steam
Topic: Weight Distribution Question on a Live Steam Locomotive
Replies: 10
Views: 505

Weight Distribution Question on a Live Steam Locomotive

Does anyone have a practical method for determining this? I really would like to be able to determine the weight distribution on the 3/4" scale Hudsons and Northern here. I suspect that 100% of the locomotive dead weight is on the drivers only and that the leading and trailing trucks are just going ...
by Carrdo
Thu Nov 08, 2018 9:27 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

NP317, Yes, you are correct. As I mentioned, this was the first setup. There was a reason for doing it this way. I needed to know if I hit or missed another required dimension which was shown on the Langworthy drawings and this was the setup which would tell me. Yes, I did hit it or am very close. T...
by Carrdo
Thu Nov 08, 2018 6:19 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

No new incidents to report. The first leaf spring bundle assemblies. They are not finished yet but I am getting there. I don't know if I like the leaf springs with the spacers or not. Will at least try it out and see how it works. I do know that without the very fine control on the bench rollers, th...
by Carrdo
Wed Nov 07, 2018 9:50 am
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

There is always a better way which I didn't think of. Richard suggested using what is known as "Thompson Shafting" for the rear forming roller as a permanent solution. It is readily available here (Canadian Bearings), it has a rock hard (62 Rockwell) surface, it is dead straight, on size and has a b...
by Carrdo
Tue Nov 06, 2018 7:11 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

Back in business.

I really didn't need any of this but ... live and learn.
by Carrdo
Tue Nov 06, 2018 2:40 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

Subconsciously, when things are going so well, I always start to worry about when Murphy will join the party and he did! After I formed the required curvature perfectly in two of the top spring leaves (see the first photo), I noticed that the spring steel was starting to scarify and groove the surfa...
by Carrdo
Mon Nov 05, 2018 6:53 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

Using the G.H. Thomas workshop bending rolls to form the leaf spring continuous curvature on a bottom leaf spring. With these rolls the leaf springs can do nothing other than what you want them to do. You can put a leaf spring through the rolls over and over again reversing it lengthwise in seconds....
by Carrdo
Mon Nov 05, 2018 11:55 am
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

While dealing with the leaf spring issue, I spotted another major problem with both the Langworthy and Josslin Hudson lead truck designs. This had escaped my notice for decades. It is serious. On both of these trucks (and the Josslin is by far the worst in this respect), the full vertical travel on ...
by Carrdo
Sun Nov 04, 2018 10:21 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 51
Views: 8698

Re: A Real Dirty Job

At this point I could just press on and bend the ends of the leaf springs as per the Langworthy drawings as seen in the first photo. For completeness, if you can't read the drawing notes, here is what they say: 3 bottom leaves full length Each succeeding leaf 1/4" shorter 2 springs, 12 leaves, 3/8" ...
by Carrdo
Tue Oct 30, 2018 7:47 pm
Forum: Live Steam
Topic: Pump
Replies: 42
Views: 2087

Re: Pump

My understanding is that he doesn't supply/build complete locomotives anymore but will still undertake some sub assembly steam projects.

Did you try contacting him at his old website phone number/email address?