Search found 17 matches

by dajt
Tue Feb 19, 2019 6:24 pm
Forum: Live Steam
Topic: silver soldering steel to steel
Replies: 34
Views: 4733

Re: silver soldering steel to steel

I have been doing this recently and found the grade of solder is important. Down here we can buy silver solder with 15% silver in it, as well as the stuff with 45% or 55% silver. The 15% silver solder us useless for steel. It will not flow, it will not stick, it will not do anything. I tried a joint...
by dajt
Tue Feb 19, 2019 12:45 am
Forum: Build Log
Topic: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale
Replies: 11
Views: 3923

Re: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale

I've just come back and marveled at the Walt Disney American thread again. So to show the last 5 years were not idle here is the loco in its current state. IMG_20190206_080715.jpg IMG_20190206_080821s.jpg It runs on air and the boiler is done aside from the superheaters, and the regulator needs sold...
by dajt
Mon Jun 25, 2018 5:20 pm
Forum: Milling Machines
Topic: RF-45 clone fine feed reassembly trouble
Replies: 0
Views: 1822

RF-45 clone fine feed reassembly trouble

Hi all, I have just done the common gearbox rebuild on my RF-45 clone, changing the gear shaft bearings, oil seals, etc. I did not change the spindle bearings. I am having trouble getting the quill fine feed mechanism to work. The rack mechanism works ok. It used to work before, albeit with a tight ...
by dajt
Tue Sep 01, 2015 8:30 pm
Forum: The Photo Album
Topic: Shop made tap
Replies: 15
Views: 9057

Re: Shop made tap

Very informative, thanks!
by dajt
Tue Feb 24, 2015 5:40 am
Forum: Build Log
Topic: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale
Replies: 11
Views: 3923

Re: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale

Thanks Dan. I use that method when doing the small rivets, but did not think to do it for these larger ones. I figured there were only 4 holes, what could go wrong? It was not so much a case of one piece deforming as the two being out of alignment from the first hole. I need to look up clecos. Regar...
by dajt
Tue Feb 24, 2015 5:35 am
Forum: Build Log
Topic: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale
Replies: 11
Views: 3923

Re: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale

It seems so pleasantly simple to use springs and no equalization. Our USA prototypes require equalization due to endemic rough track conditions here during those years, unlike "more civilized" railroads around the world. ((-; So our model locomotives require many small hidden parts to be "correct."...
by dajt
Tue Feb 17, 2015 5:14 am
Forum: Build Log
Topic: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale
Replies: 11
Views: 3923

Re: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale

Some progress on the axleboxes and wheels. When the eccentrics are done I can put the wheels on, and push it around :)
IMG_1765_n.png
by dajt
Fri Jan 09, 2015 12:36 am
Forum: Build Log
Topic: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale
Replies: 11
Views: 3923

Re: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale

I have done most of the frame spacers now, just the one above the leading wheels to go. Also getting through the axle boxes. First two with their bushes loctited in. The two rear ones still have to be thinned down to allow the firebox to fit between them.

Up to 108 hours on the loco.
by dajt
Mon Dec 22, 2014 4:44 am
Forum: General Discussion
Topic: Shop made spur gear cutters
Replies: 34
Views: 10774

Re: Shop made spur gear cutters

Thanks Torch, nice one. Interesting method of making the gear cutter too.
by dajt
Mon Dec 22, 2014 2:30 am
Forum: Build Log
Topic: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale
Replies: 11
Views: 3923

Re: A NSW 24 class mogul in 5" gauge, 9/8" : 1' scale

So onto the loco! The frames are cut with a water jet in 3mm steel. The horn cheeks also cut with a water jet from 10mm steel, with just some machining to make a relief for the nuts on the back of them. The drag beam and buffer beam are also 3mm steel, cut from some 3x100mm flat and the drag box was...
by dajt
Sun Dec 14, 2014 6:48 pm
Forum: General Discussion
Topic: First dive into machinist-land :)
Replies: 16
Views: 1956

Re: First dive into machinist-land :)

RCW wrote:Explain, please.
I'm guessing he means Harold Hall's website.
by dajt
Thu Nov 27, 2014 5:23 am
Forum: General Discussion
Topic: A Compact Shop-Made Rotary Broach
Replies: 39
Views: 5210

Re: A Compact Shop-Made Rotary Broach

Yes, I worded my post badly. The thing in the mill collet rotates, but the thing holding the broach doesn't. It just has wobble imparted to it via the ball. The 4 screws just stop it falling out of the rotating thing, but do not clamp it in any way. Using it in the lathe... in this case the work bei...