Search found 281 matches

by Jawn
Sat Jul 22, 2017 3:32 am
Forum: Build Log
Topic: GE 23 ton boxcab in 7.5" gauge / 1.5" scale
Replies: 38
Views: 17954

Re: GE 23 ton boxcab in 7.5" gauge / 1.5" scale

That's an interesting idea, I never thought of doing it like that. As to the live center, the picture I posted may not show enough to show the live center but it's there. :) I bought one early on as I didn't much like the idea of using a dead center. A club member suggested I finish out the fillet b...
by Jawn
Fri Jul 21, 2017 10:46 pm
Forum: Build Log
Topic: GE 23 ton boxcab in 7.5" gauge / 1.5" scale
Replies: 38
Views: 17954

Re: GE 23 ton boxcab in 7.5" gauge / 1.5" scale

The mandrel shown in my previous post was a first hack at it using what I had on hand... I may try making a beefier one tonight since I will have a lot more wheels to turn. I picked up a larger nut that will allow me to keep the "stub" on that end to a larger diameter, and I have some beefier steel ...
by Jawn
Fri Jul 21, 2017 7:34 am
Forum: Build Log
Topic: GE 23 ton boxcab in 7.5" gauge / 1.5" scale
Replies: 38
Views: 17954

Re: GE 23 ton boxcab in 7.5" gauge / 1.5" scale

I went back to the basement to work on that wheel some more. I tried to use a radius HSS bit for the tread to flange fillet but it didn't work well, I guess a griz 10" lathe is far too light to use that. I think a shallow (but tall) radius turning attachment would work better, smaller cut per rev......
by Jawn
Fri Jul 21, 2017 3:32 am
Forum: Build Log
Topic: GE 23 ton boxcab in 7.5" gauge / 1.5" scale
Replies: 38
Views: 17954

Re: GE 23 ton boxcab in 7.5" gauge / 1.5" scale

Sometimes I make good progress on a project, sometimes not. A while back I did some work on the controller. It's about 80-90% there at this point. I have motor and direction control, function control, and control of a servo (to be incorporated into a brake system). Still to be worked out is interloc...
by Jawn
Sat Jul 15, 2017 9:44 am
Forum: Live Steam
Topic: Technology is great
Replies: 17
Views: 6326

Re: Technology is great

Very nice! Is 1x1 going to be rigid enough for a loco, or is it for rolling stock only?
by Jawn
Sat Jun 10, 2017 10:45 pm
Forum: Live Steam Marketplace
Topic: Allen Models Expansion links out of stock.
Replies: 9
Views: 2529

Re: Allen Models Expansion links out of stock.

I assume you're talking about the wire edm cut link and block set?

https://allenmodels.com/catalog/product ... ategory/5/

I will need a set eventually, but I'm not in a hurry... have yet to cut the first chip on my loco.
by Jawn
Sat Jun 03, 2017 1:42 pm
Forum: Live Steam Marketplace
Topic: New machined Stephenson links from Allen Models
Replies: 20
Views: 4127

Re: New machined Stephenson links from Allen Models

I assume this is not a one time production run?
by Jawn
Sun Mar 12, 2017 8:43 pm
Forum: Riding Scale Railroading
Topic: Repair cast aluminum trucks?
Replies: 15
Views: 5634

Re: Repair cast aluminum trucks?

slightly crooked screws annoy me a little Counter sink the screws and hide with JB weld. Then only you will know. I thought about that but given the nature of the repair, but I want the ability to snug up the screws if they defeat the loctite and start to work out. I bought a 1x2 steel tube a while...
by Jawn
Thu Mar 09, 2017 8:21 pm
Forum: Riding Scale Railroading
Topic: Repair cast aluminum trucks?
Replies: 15
Views: 5634

Re: Repair cast aluminum trucks?

Finally got these back together. I milled the ears off the end then drilled and tapped the end of the bolster. Next I cut a chunk of aluminum stock slightly oversize, drilled it to match. Then I screwed it into place, put the bolster in the mill and cut it to final size to complete it. The slightly ...
by Jawn
Sun Jan 01, 2017 1:49 am
Forum: General Discussion
Topic: Stuff I Learned About Arduino Intellectual Property
Replies: 32
Views: 4607

Re: Stuff I Learned About Arduino Intellectual Property

Enthusiastic aussie... that's one way to describe him.

I keep eyeballing the chinese scopes (Siglent, Rigol, and the US-branded versions)... just haven't given in and bought one yet. Same thing I always do, analysis paralysis and questioning how much features/precision do I need.
by Jawn
Fri Dec 30, 2016 3:08 am
Forum: General Discussion
Topic: Stuff I Learned About Arduino Intellectual Property
Replies: 32
Views: 4607

Re: Stuff I Learned About Arduino Intellectual Property

I like 'em... working on building a motor controller and wireless handheld control for a 7.5" electric loco. In my case, I've put the Atmega with Arduino bootloader on a PCB and built the circuit around it to make it function instead of using a whole Arduino board. This lets me put other ICs and com...
by Jawn
Tue Dec 27, 2016 1:00 am
Forum: Riding Scale Railroading
Topic: Repair cast aluminum trucks?
Replies: 15
Views: 5634

Re: Repair cast aluminum trucks?

I would just machine/ cut the end off and fasten a flat plate of aluminum to the end that froms the tabs, hold on with flat head screws and some bearing retainer Loctite. That is if there is enough meat in the bolster to tap after cutting. I assumed it the tabs on the end that are broken, if not di...