Search found 1588 matches

by Glenn Brooks
Thu Jun 20, 2019 11:45 am
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 209
Views: 43320

Re: Woodinville Shops

Yep, decent size Mig’s are always in demand. They show up on CL in Seattle once in awhile, at a good price. Iam generally happy with my Lincoln Tombstone, yet it is always a PITA to clean up the welds- particularly on inside corners on these small hobby frames - often no room to get a grinder inside...
by Glenn Brooks
Wed Jun 19, 2019 11:56 pm
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 209
Views: 43320

Re: Woodinville Shops

Today, Welded up the final bits of the frame, and added the car bolsters and main bearings. The bearings will actually be bolted to the bolsters- prototypical style. 6011 is getting old to work with. There’s always a lot of cleanup with stick (welding). A nice little mig machine would be so much cle...
by Glenn Brooks
Wed Jun 19, 2019 9:17 pm
Forum: General Discussion
Topic: Fed up With Crummy Rotary Tools
Replies: 12
Views: 147

Re: Fed up With Crummy Rotary Tools

Steve, What kind of work do you want to do with the rotary? I went down this route last year, looking for a small rotary tool to remove scale and splatter in hard to reach corner weldments. I bought a moderately expensive rotary air tool to use with my air compressor. But soon gave it up in favor of...
by Glenn Brooks
Sun Jun 16, 2019 12:35 am
Forum: General Discussion
Topic: Turning plastic on a metal lathe
Replies: 18
Views: 470

Re: Turning plastic on a metal lathe

I just had an occasion to turn some HDPC on my lathe. Nothing to it. Although it needs to be held good and tight with a threaded arbor and nut, or maybe a four jaw chuck. Milling is another thing altogether. The pieces I was working with tried to go over the top of end mill and then squirted right o...
by Glenn Brooks
Thu Jun 13, 2019 3:02 pm
Forum: General Discussion
Topic: Drill press recommendations?
Replies: 9
Views: 323

Re: Drill press recommendations?

I’ve found the key with old drill press’s is to check the run out on the spindle. Old tired DP’s can have runout exceeding .010” due to bearing and spindle wear. Normal useage maybe under .003”. Like Mr. Ron, I found a really nice 1939 Delta DP that actually measures .001” runout. I use it all the t...
by Glenn Brooks
Tue Jun 11, 2019 3:31 pm
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 57
Views: 1200

Re: Newbie - Buying first metal lathe

Iam with the bigger is better crowd. For all around hobby use, certainly for live steam locomotive building, a 12” lathe is extremely versatile, rigid and powerful enuf. Now days 14” lathes are also very very common. They are lighter weight than the old big iron lathes, but can often be found second...
by Glenn Brooks
Mon Jun 10, 2019 10:43 pm
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 209
Views: 43320

Re: Woodinville Shops

Quick followup to the plastic workholding problem from yesterday. I decided to try to clean up my two plastic thrust washer disks today. So bolted then up on a threaded arbor on the lathe and turned the ends down to .300” thickness - just shy of 5/16”. However, The nut in the center left a noticeabl...
by Glenn Brooks
Sun Jun 09, 2019 10:03 pm
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 209
Views: 43320

Re: Woodinville Shops

Got a piece of Hi Def Plastic to experiment making plastic thrust washers. Not sure if it is Delrin or lower grade HDFE. The scrap piece was formerly a bit of Boeing aircraft flooring - so high quality material, I am sure. machined up 4 thrust washers for the main bearing. Not much to see except a l...
by Glenn Brooks
Sun Jun 09, 2019 2:45 am
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 209
Views: 43320

Re: Woodinville Shops

Thanks Nyle, I think a couple of local metal working shops work a lot with Delrin. I’ll ask about and see if I can score a sample. Appreciate the info- I am not very knowledgeable about plastics...

Glenn
by Glenn Brooks
Sat Jun 08, 2019 9:35 pm
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 970

Re: Boiler treatment

Russ, one followup question, regarding oxygenation. In your start up procedure, do you add anything that specifically scrubs dissolved oxygen from the water?

Thanks
Glenn
by Glenn Brooks
Sat Jun 08, 2019 7:24 pm
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 209
Views: 43320

Re: Woodinville Sho

More progress on the bearing. Finished turning the male side of the socket. Here it is, resting on the upside down frame. The bolster will be a full length piece of 3/8 x 4” flat bar, across the frame, welded to each sill. The male pin and retaining pin will be welded to a separate baseplate, simila...
by Glenn Brooks
Sat Jun 08, 2019 6:48 pm
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 970

Re: Boiler treatment

Russ, can you confirm that heating water in the boiler causes the dissolved oxygen to dissipate soon as the heat hits it? When you vent steam, are you venting all the dissolved O2? If so, what temperature/ pressure do you need to reach to first achieve this? How does this affect fresh water added fr...