Search found 662 matches

by rudd
Thu Aug 15, 2019 8:03 pm
Forum: General Discussion
Topic: Bandsaw downfeed control
Replies: 19
Views: 4427

Re: Bandsaw downfeed control

Huh, my 1930's Excelsior power hack doesn't have those issues. And it's fun to watch! :)
by rudd
Thu Aug 15, 2019 8:00 pm
Forum: Lathes
Topic: new guy, old lathes
Replies: 6
Views: 3819

Re: new guy, old lathes

No worries. I enjoy the history of the companies as well as the tools. I've wondered for years why CAV (a man's initials) changed their name to CVA Jigs and Molds. My mill proudly states it was made in Hove, Sussex. And how did a mill from Hove, Sussex end up in the Pratt and Whitney factory in New ...
by rudd
Wed Aug 14, 2019 6:13 pm
Forum: General Discussion
Topic: In pursuit of Flatness.
Replies: 5
Views: 1842

Re: In pursuit of Flatness.

Did you use the "3 flats" process?
by rudd
Thu Aug 08, 2019 8:05 pm
Forum: Lathes
Topic: new guy, old lathes
Replies: 6
Views: 3819

Re: new guy, old lathes

Ah - "Wade" - not "Ward". H.W. Ward of England made heavy turrett lathes, and other heavy machine tools. CAV that made Wade lathes later morphed into CVA Jigs and Moulds, and made among other things, the beast of a vertical mill/die sinker that is in my shop. A short history: http://lathes.co.uk/cva/
by rudd
Thu Jul 25, 2019 9:13 pm
Forum: General Discussion
Topic: Consequences due to lack of penetration because of inexperience welders.
Replies: 32
Views: 9812

Re: Consequences due to lack of penetration because of inexperience welders.

Certified means at least when I get put in the shiny wood box next to the person who likes to wear long black robes, I did my due diligence, here are the certs that were submitted. If someone was dishonest, it wasn't me. And yes, I'm familiar with the welding position/weld type certs listed on the c...
by rudd
Tue Jul 23, 2019 8:41 pm
Forum: General Discussion
Topic: Consequences due to lack of penetration because of inexperience welders.
Replies: 32
Views: 9812

Re: Consequences due to lack of penetration because of inexperience welders.

It's really hard to police. I'm an Architect. We require copies of welders certs for items like this. It is usually a fight to get them. I have no way of knowing if the person named on the certification is actually doing the welds. Not too many years ago, a new church was being built here in town. T...
by rudd
Sun Jul 14, 2019 2:07 pm
Forum: Lathes
Topic: Enlarging Taper in Tailstock Quill--Pros? Cons?
Replies: 15
Views: 5717

Re: Enlarging Taper in Tailstock Quill--Pros? Cons?

I doubt "call Enco" is going to be a solution. I think that lathe is no longer in production. Some folks think Grizz parts may interchange, some folks think Jet parts may interchange. For me, centers fail at the tip, so diameter of the shank isn't an issue. Consider that the shank is essentially ful...
by rudd
Fri Jul 05, 2019 10:49 am
Forum: Live Steam
Topic: Purpose of False Valve Seats
Replies: 8
Views: 2550

Re: Purpose of False Valve Seats

yes, that sounds like a false seat. Why would it be steel with all the associated rust issues? Maybe not a problem on a model, but I'd think cast iron would be a better material for several reasons. Corrosion (CI develops a "skin" that slows further corrosion), wear, and the porosity of the iron to ...
by rudd
Fri Jul 05, 2019 10:03 am
Forum: Live Steam
Topic: Purpose of False Valve Seats
Replies: 8
Views: 2550

Re: Purpose of False Valve Seats

Not sure about models, but this was often done on prototype slide valve engines when the valve seat became too worn to straighten out and maintain the alignment with the gland/valve rod. Mill the top off the valve seat down enough to install a "false seat" - a slab-o-arn with the ports cut into it a...
by rudd
Sat Jun 29, 2019 9:53 am
Forum: Live Steam
Topic: Searching for a unique protoype? here's the jackpot!
Replies: 5
Views: 2623

Re: Searching for a unique protoype? here's the jackpot!

one of the underlying problems is: If you can only find the prototype on a site like this...then there is a very strong probability that it was a dud from the get go...and what is the point of making a model of a dodo bird? :P I dunno. I haven't had a drink in over 10 years, but I used to really li...
by rudd
Thu Jun 27, 2019 7:35 pm
Forum: Live Steam
Topic: Searching for a unique protoype? here's the jackpot!
Replies: 5
Views: 2623

Searching for a unique protoype? here's the jackpot!

Beware, this can turn into one of those time vacuums!
http://douglas-self.com/MUSEUM/LOCOLOCO/locoloco.htm
by rudd
Sun Jun 23, 2019 8:56 pm
Forum: Lathes
Topic: Threading
Replies: 13
Views: 6106

Re: Threading

I think you you've done a good job of analyzing what went wrong. You *might* be able to anneal the bar to get it soft enough to thread. I don't think switching to HSS is going to be better, I think it will be worse as HSS is softer than carbide. I understand the though of trying to be a tiny bit bel...