Search found 1470 matches

by rkcarguy
Tue May 12, 2020 12:34 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

I forgot my new lathe bits at work, so had to settle for an old brazed carbide that was less than perfect but worked ok. I think I can get a better finish yet. It seems to like a heavier feed or it chattered a little. I sort of wadded up my mill head tramming tool to center up one of my axle hubs in...
by rkcarguy
Mon May 11, 2020 3:29 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

The lathe actually has the threading chart in TPI and .001" per revolution on the gear cover, it's stamped pretty small though so I'll need better light to be able to see it. I'm going to do some cleanup and replace some of the light bulbs in the ceiling and try to remedy the light situation so I ca...
by rkcarguy
Mon May 11, 2020 12:02 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

That's great to know! I was concerned some of the gears were missing and they are pretty proud of them on Ebay. I engaged the power feed and turned the spindle 1 revolution with a dial indicator on the saddle. The current gear setup is close to .010" per revolution, which I think is a little rough? ...
by rkcarguy
Mon May 11, 2020 10:21 am
Forum: Milling Machines
Topic: Two flute v. four flute end mills
Replies: 7
Views: 1484

Re: Two flute v. four flute end mills

Yep, use two flute cutters for aluminum. I still have my bottle of A9 cutting oil I use for aluminum it must be 20 years old, a little goes a long way. For blind slots, I always used a little air to clear the chips from the slot while I was cutting. If you put that cutter back into a cut on a scrap ...
by rkcarguy
Mon May 11, 2020 2:53 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

The lighting in the garage is very poor, so I took a flashlight out to have a look. The original flaking isn't as prominent as it is on yours but it is indeed still there. I also went through the toolbox of stuff that came with it, and I have 11 extra change gears plus what is on the lathe. Thinking...
by rkcarguy
Sun May 10, 2020 6:09 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

The ways have some sort of finish pattern to them that has some consistency to it, I'm not sure if that was factory to hold oil or if someone else did that. Nothing is flaking off there is no coating on them, just cast iron. I can't discern any difference in the finish feeling it with my "machinist ...
by rkcarguy
Sun May 10, 2020 12:35 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

Some pictures. The cover for the electrical connections didn’t clear the belt, so I’ll need to make a flat one. Otherwise the 1hp motor bolted right up in place of the old 1/3hp. The last picture is how I’m putting together a support for the other end of my wheel sets. D5B7CE4F-1B87-4320-92A1-C7F6B7...
by rkcarguy
Sat May 09, 2020 9:13 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 636
Views: 170523

Re: 12" working railroad

The lathe is up and running. The rotary switch was wired totally wrong and the motor that came with it was weak, so I upgraded to a 1HP motor. Just need to finish up my T-nut for the QCTP and It'll be time to make some test cuts.
by rkcarguy
Sat May 09, 2020 5:40 pm
Forum: Lathes
Topic: Repowering SB 9" Lathe
Replies: 19
Views: 2800

Re: Repowering SB 9" Lathe

So shouldn't rkcarguy use a 3-phase motor and a vfd? I also have 3-phase at home, but when I put my 3 phase lathe motor on a vfd it's much more versatile. With VFD's, everyone can have 3-phase at an affordable price. Or did I miss something? I'm not a fan sorry. The concept looks cool but in my eye...
by rkcarguy
Sat May 09, 2020 5:26 pm
Forum: Lathes
Topic: Repowering SB 9" Lathe
Replies: 19
Views: 2800

Re: Repowering SB 9" Lathe

Yes, you are just swapping T5 and T8. drum.jpg Dave My rotary switch wasn't wired right by the previous owner. I followed this diagram and it works great...well I had to swap T5 and T8 because it was backwards to the switch direction but that's easy enough. Just need to button up the wiring and get...
by rkcarguy
Sat May 09, 2020 1:37 am
Forum: Lathes
Topic: Repowering SB 9" Lathe
Replies: 19
Views: 2800

Re: Repowering SB 9" Lathe

Thing is, I bought this to mainly flip the compound around and cut all my large scale train wheel angles. I'll be feeding by hand so I don't know how good of finish I'm going to get and the wheels are going to rust anyway. For other stuff where I'm running the power feed, sure I can see any hunting ...
by rkcarguy
Fri May 08, 2020 11:34 am
Forum: General Discussion
Topic: Best alloy for marine cam pulley..
Replies: 11
Views: 1692

Re: Best alloy for marine cam pulley..

I happen to own a boat with one of those Volvo gas 4-cylinder OHC motors in it, can attest to rust being a big problem on the timing belt pulleys. The only thing that comes to mind is stainless steel unless you want to go more exotic and difficult to machine. Brass or bronze could be an option it wi...