Author Topic: 30ft 1890's navy steam launch 1/6th scale  (Read 83952 times)

Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #210 on: September 26, 2020, 01:36:13 PM »
very busy non shop week,, the major work project of retrofitting and rehabbing 8 large environmental chambers was completed, lots of inspections and testing. I did manage a little time to make some better clamps for the rotary table, clamps that came with were only barely wider than the table slots,, hogged the steel down with a hacksaw to reduce mill time, milled, drilled, filed and sanded.. after some final cleanup they will get  quench hardened (I'll save some oil when the truck gets a change this weekend) hopefully next week the engine will get tested..

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Offline Admiral_dk

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #211 on: September 26, 2020, 08:25:17 PM »
Nice design - how did you get the two curved surfaces ?

Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #212 on: September 26, 2020, 08:38:07 PM »
the black one that shows the curves, is one of the not wide enough ones that came with the table, I'll have to work on mine a bit more (files and milling) to get them that nice,
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Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #213 on: October 02, 2020, 06:15:40 PM »
<a href="https://www.youtube.com/watch?v=46QuQjieanY" target="_blank">http://www.youtube.com/watch?v=46QuQjieanY</a>  only running on air, still needs lots of tweaking but it will run,, even in both directions
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Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #214 on: October 02, 2020, 07:49:56 PM »
slim was upset that he wasn't in the video, but it was last minute thing, also the first vid I ever posted,, engine is still tight but starting to break in, hopefully it will get to see some steam in a week or so,, to make slim happy I gave him the weekend off( thinking I should valve off the air from outside the shop)
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Offline crueby

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #215 on: October 02, 2020, 09:57:09 PM »
Excellent!!!  :ThumbsUp: :ThumbsUp: :ThumbsUp:

Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #216 on: October 05, 2020, 06:35:32 PM »
officially a monday.. early this morning noticed a slight wobble of the chuck I'm using as a temp flywheel.. further investigation found that one of the loctite and pinned joints at the connecting rod has failed.. I do have new stock on hand, I did save the spacing jigs that were made.. now the real question is should crank #2 be loctited or silver soldered? slim has taken the attitude that all of this happened before he entered the shop, I still think he tried to find out what was max rpm over the weekend!!!
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Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #217 on: October 07, 2020, 08:29:32 PM »
slim taking charge of the new crankshaft,, just a quick test fit of all the parts,, loctited the webs together for milling, drilling and reaming.. the webs do have chamfered holes on the non-bearing sides to allow the solder to fill the space better,, the outer pieces are just for support and balance while soldering..all the pieces will need a final clean-up and prep,, will have a friend help with the soldering as most likely will use two torches so things heat evenly..
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Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #218 on: October 10, 2020, 10:24:11 PM »
well the first attempt at a soldered crank was a bust,, solder didn't want to flow,things got over-heated, three of the eight joints were fine the rest weren't!! new stock is on the way along with new flux (both white and black) black is supposed to work better for ferrous work.. experience is what you get when things don't work..
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Offline crueby

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #219 on: October 10, 2020, 10:29:21 PM »
The black flux is also supposed to last longer under heating, I like it a lot. Be sure to leave room in the joints for the solder to flow in, if the joints are tight the solder will just sit on the outside.

Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #220 on: October 10, 2020, 10:33:48 PM »
my container of white was 20 years old, had been rewetted several times.. it was time to replace..
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Offline Craig DeShong

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #221 on: October 11, 2020, 11:18:21 PM »
... I still think he tried to find out what was max rpm over the weekend!!!

It’s obvious to me that your problems are due to Slims overexcitement... just like a kid.

I’ve only silver soldered one crankshaft... it came out great but I attribute it all to ‘beginners luck’ I could never repeat it.  Now my eyes are so bad I can’t see what I’m soldering so any future soldering attempts for me is strictly out.

Looks like you’re on the right track and you’re getting excellent suggestions.
Craig
The destination motivates us toward excellence, the journey entertains us, and along the way we meet so many interesting people.

Offline tghs

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #222 on: October 13, 2020, 08:05:50 PM »
well my flux order arrived today,, not what you want to see when you open a box with a smile on it.. no packing two containers rolling about!!!a new jar is on the way..the white was fine..
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Offline cnr6400

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #223 on: October 13, 2020, 09:30:08 PM »
Just trying to see the bright side - anything you solder to that box is going to bond beautifully!  :Lol: 

Glad to hear a replacement is on the way.  :cheers:
"I've cut that stock three times, and it's still too short!"

Offline crueby

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Re: 30ft 1890's navy steam launch 1/6th scale
« Reply #224 on: October 13, 2020, 09:35:45 PM »
Yup, they dont believe in proper packing anymore...   :ShakeHead:   I love it when they just stick a label on the side of the thin store box and send it out.


Definitely was the right bottle for the black flux, that color goop looks familiar! I figure one bottle is at least a decade supply, if not several.

 

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