Search found 1167 matches

by Carrdo
Sat Apr 04, 2020 9:34 am
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

I must have done something right for a change as all of the leaf springs are now installed in the leaf spring centre hangers. Thirty four (34) holes drilled in the spring steel with all of the drills surviving and in excellent condition. I still had to undertake some further dog work to final fit al...
by Carrdo
Wed Apr 01, 2020 5:36 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

A not too good photo of couple of leaf spring drilled holes. You can judge the result for yourself.
by Carrdo
Wed Apr 01, 2020 5:15 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

Sorry for the choppy messaging. I had all of this in one post earlier but it all disappeared when I hit "submit". The reason one cannot use the drill bushing with the carbide spade drill is a spade drill functions differently to a regular jobbers twist drill. They do not drill the same size holes an...
by Carrdo
Wed Apr 01, 2020 4:29 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

To summarize the critical drilling process, the following procedure was used. As I do not have anything digital, only old fashioned mechanical methods were employed. To accurately centre the drill, width wise, on a spring leaf, a single use 1/16" dia. centre hole drill bushing made from mild steel w...
by Carrdo
Tue Mar 31, 2020 5:05 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

The critical drilling of the spring steel leaf springs. Nowhere does C 1095 blue tempered spring steel show its nasty nature than when trying to drill it in a home shop environment. So, preparation is everything and even with the best preparation, things can and do go wrong. The problem. I needed to...
by Carrdo
Thu Mar 26, 2020 10:14 am
Forum: Live Steam
Topic: Chas. V. Arnold Tiny Power Northern
Replies: 3
Views: 1235

Re: Chas. V. Arnold Tiny Power Northern

I think that I may have answered my own question. From deep within my files.

I still don't know what happened to this locomotive though.
by Carrdo
Mon Feb 24, 2020 8:30 am
Forum: Live Steam
Topic: Chas. V. Arnold Tiny Power Northern
Replies: 3
Views: 1235

Chas. V. Arnold Tiny Power Northern

Does anyone know the history of or know what happened to the 3.5" gauge Northern which Chas V. Arnold of Tiny Power constructed? I know that it appeared in some of the original Tiny Power's catalogues and the all copper locomotive boiler was pictured in the book Chas wrote on miniature boiler constr...
by Carrdo
Tue Dec 31, 2019 12:51 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

After slicing and grinding square the ends of all the leaf springs (17 in total), the next operation was to roll the curvature into the leaf springs (which was 3/16" setup on the bottom longest tripled leaves). Each subsequent leaf was then rolled slightly shallower until the next leaf became flat. ...
by Carrdo
Thu Dec 26, 2019 11:42 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

Back to the production of leaf springs. The starting sequence. As I have said before, the way one does this is often according to the equipment one does or doesn't have. For the cutoff operation, as seen in photo 714, one needs to have a controlled/firm grip on the material but do not push the cutof...
by Carrdo
Thu Dec 26, 2019 2:39 pm
Forum: Build Log
Topic: Constructing The Josslin NYC Hudson Lead Truck
Replies: 85
Views: 37475

Re: Constructing The Josslin NYC Hudson Lead Truck

Drilling and tapping the lead truck frame brake lugs for the brake shoe hangers. The setup to do this was exactly the same as was done with the Langworthy truck frame. However, as the slots in the brake lugs were machined correctly this time, having the correct offset from the frame so that the cent...
by Carrdo
Sun Dec 22, 2019 5:05 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 138
Views: 62492

Re: A Real Dirty Job

The rocker bearing plate projections set in the slots of the rockers.
by Carrdo
Sat Dec 21, 2019 6:45 pm
Forum: Build Log
Topic: A Real Dirty Job
Replies: 138
Views: 62492

Re: A Real Dirty Job

I went back to the 4 wheel trailing truck to make some additional items. On the trailing truck rockers, the Langworthy drawings say nothing about the rocker bearing plate projections which are needed to constrain rocker movement. I do have a book which shows this in a drawing but with no dimensions....