Search found 268 matches

by DavidF
Sun May 24, 2020 11:52 am
Forum: Casting & Foundry Work
Topic: Mystery bronze
Replies: 15
Views: 1306

Re: Mystery bronze

This is a pretty much perfect temp for brass, judging by color.
I've found it a bit tricky to " guess" the temp by color in the past and have the unfortunate tendency to be a bit cold...
This pour was just about perfect. I used Matt casting flux from Riogrande..
by DavidF
Sun May 24, 2020 9:35 am
Forum: Casting & Foundry Work
Topic: Mystery bronze
Replies: 15
Views: 1306

Re: Mystery bronze

I work for a municipal water company that replaces these meters every so many years. Over the past 5 years we have been switching to " smart meters" fitted with radio transmitters. The old meters are sorted andvsold for scrap. All the meteres, even the larger 4" ones we thought might be bronze were ...
by DavidF
Fri May 22, 2020 7:24 pm
Forum: Casting & Foundry Work
Topic: Mystery bronze
Replies: 15
Views: 1306

Re: Mystery bronze

Not bronze or anything fancy. Just red brass.
Sounds like you were just not hot enough to me...
by DavidF
Sat Oct 19, 2019 9:54 am
Forum: Casting & Foundry Work
Topic: Lost pla ceramic shell cast iron
Replies: 4
Views: 4101

Re: Lost pla ceramic shell cast iron

Yes, the ceramic shell is indeed porous...
by DavidF
Mon Oct 14, 2019 9:58 am
Forum: Live Steam
Topic: Driver machining order
Replies: 17
Views: 5586

Re: Driver machining order

I would machine the back of the wheel first so it could be mounted flush to a backing plate in the lathe, then machine the rim of the wheel, face it off, and bore for the axle in one set up. Then transfer to the mill and indicate off the axle hole, move to the position of the crank pin and drill and...
by DavidF
Wed Jul 17, 2019 11:07 pm
Forum: Casting & Foundry Work
Topic: casting in the third world
Replies: 16
Views: 7274

Re: casting in the third world

What personal safety equipment would have been readily available to a foundry man in 1906 ??
by DavidF
Thu Jun 13, 2019 10:17 am
Forum: Casting & Foundry Work
Topic: Baking Cores
Replies: 7
Views: 3862

Re: Baking Cores

and if gassing the SS bound core just is not your thing, you can buy a catalyst to cure it here.
http://shop.clay-planet.com/metal-casting.aspx
by DavidF
Thu Jun 13, 2019 10:01 am
Forum: I.C. Engines
Topic: Coles Models Holt 75 engine model
Replies: 10
Views: 7163

Re: Coles Models Holt 75 engine model

I managed to get a set, and there is also a gentleman on the HMEM site that is working on a set of drawings for a bar stock engine. Depending on my work load I hope to make some castings for the engine by the end of the year.
by DavidF
Tue May 28, 2019 8:38 am
Forum: Live Steam
Topic: Thieves caught on video stealing mini steam train in West Seattle
Replies: 24
Views: 13713

Re: Thieves caught on video stealing mini steam train in West Seattle

Pretty sad. Obviously they knew it was there and had the theft planned. On the brighter side (if you can call it that) Its doubtful that they just stole it for scrap metal, so hopefully it shows back up as a complete engine.
by DavidF
Wed May 15, 2019 9:16 am
Forum: Milling Machines
Topic: Gear Cutting
Replies: 9
Views: 5301

Re: Gear Cutting

depending on the size of the gear you may want to consider purchasing gear rod stock and part of the thickness of gears you need..
https://www.mcmaster.com/gears
by DavidF
Wed Apr 03, 2019 8:42 pm
Forum: I.C. Engines
Topic: Coles Models Holt 75 engine model
Replies: 10
Views: 7163

Re: Coles Models Holt 75 engine model

I would be interested in a set as well.
by DavidF
Mon Mar 25, 2019 11:37 pm
Forum: Live Steam
Topic: coles
Replies: 8
Views: 2950

Re: coles

I can see your original question has NOT been answered. Oblivion sounds right to me. :shock: The first response answered the question, and you're correct. It was closed, which is akin to oblivion. A loss to the hobby, as was the passing of Anton Bohaboy. H You would think that they would pass the t...