stevep
Elder Statesman
Posts: 1,070
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Post by stevep on Jan 16, 2022 20:54:27 GMT
SNIP The safety valves lifted perfectly but didn't close. The springs are rusty!! SNIP Many years ago, someone gave me some advice, and now, every time I finish steaming, I drop a little bit of steam oil into the safety valves. That way, the springs don't rust.
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Post by delaplume on Jan 17, 2022 21:12:45 GMT
SNIP The safety valves lifted perfectly but didn't close. The springs are rusty!! SNIP Many years ago, someone gave me some advice, and now, every time I finish steaming, I drop a little bit of steam oil into the safety valves. That way, the springs don't rust. Hi Steve--- am I missing something here ( don't answer that !!..LoL ) but aren't safety valve springs made out of stainless steel ??.....
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stevep
Elder Statesman
Posts: 1,070
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Post by stevep on Jan 17, 2022 22:32:10 GMT
Many years ago, someone gave me some advice, and now, every time I finish steaming, I drop a little bit of steam oil into the safety valves. That way, the springs don't rust. Hi Steve--- am I missing something here ( don't answer that !!..LoL ) but aren't safety valve springs made out of stainless steel ??..... Well, clearly Andy's aren't! :-) (Sorry, that sounds a bit facetious, but it wasn't meant to be). I think that many grades of 'stainless' are not rust resistant. Even the best stainless, meant for marine environments, seems to sometimes show signs of corrosion. And don't forget that the springs in our safety valves are being subjected to high pressure steam - not exactly a friendly environment.
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chrisb
Part of the e-furniture
Posts: 340
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Post by chrisb on Jan 18, 2022 6:01:31 GMT
This afternoon I made a start at properly integrating the inverter into my M300 lathe. Initially I had just connected it straight to the motor and was running it on the start and stop buttons on the inverter front panel. I have bought new modular contactors and replicated the control logic of the original controls, the control supply is now 24v so it will power a halogen work light as well.
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,906
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Post by JonL on Jan 18, 2022 10:54:14 GMT
Some of our helicopters were fitted with carbon fibre rods to control their flying controls, but they found they burned easily in the event of a fire. So they replaced them with stainless, but found even the very high grade stainless they used was showing signs of corrosion when used in SAR type activities and rough weather ship deployment.
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uuu
Elder Statesman
your message here...
Posts: 2,807
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Post by uuu on Jan 18, 2022 12:28:15 GMT
Many years ago, I had a failure in a hired sailing boat, when a stainless rigging component gave way and the mast collapsed overboard in bits. It was clear from the fragments that corrosion had been a factor.
Wilf
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Post by RGR 60130 on Jan 18, 2022 16:57:38 GMT
Today, while machining the steel tyres on the A1 wheels I passed the 1000 Hrs of construction milestone. Hopefully another 1000 Hrs will see it mechanically complete though I wouldn't bet a coke and a mars bar on it.
Reg
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Gary L
Elder Statesman
Posts: 1,208
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Post by Gary L on Jan 19, 2022 0:30:27 GMT
Many years ago, I had a failure in a hired sailing boat, when a stainless rigging component gave way and the mast collapsed overboard in bits. It was clear from the fragments that corrosion had been a factor. Wilf Yep. That should have been A4, the best grade. It galls, it fatigues, it work-hardens, it gets crevice corrosion, and the surface soon discolours with a rusty light bloom in marine conditions. It is the worst possible material for yacht rigging, apart from all the others... Gary
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dscott
Elder Statesman
Posts: 2,437
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Post by dscott on Jan 19, 2022 0:54:19 GMT
A FREEZING Club Run with 4 locos arriving 3 running. A second failing and an early finish. Nice to chat in the Clubhouse being the best. Of course our W. Heath-Robinson worked well. Must get some heated seats for next winter. Or complete the Hunslet!
David and Lily.
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Post by delaplume on Jan 19, 2022 11:19:36 GMT
Well--- even the mundane tasks need doing at some time so yesterday afternoon was spent cutting up firewood for lighting-up this year....There is also a mix of charcoal available in my bucket to help keep the white parrafin smoke to a minimum....
5 runs so far this year and YES---- it was KOLD !!! brr...LoL but good fun..
Come on guys, no need to wait for Easter--- get stuck in !!
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Post by andyhigham on Jan 19, 2022 20:06:10 GMT
To replace the left hand feed pipe would have been a major strip down, including cab off. Instead I cut the pipe under the running board and joined a short piece with a double union. I found out the running boards are milled from solid aluminium. I also received my new safety valves from Polly. 20220119_194445 by Sigma Projects, on Flickr 20220119_194519 by Sigma Projects, on Flickr
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dscott
Elder Statesman
Posts: 2,437
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Post by dscott on Jan 20, 2022 1:56:23 GMT
Wednesday working but far more tea drunk to warm up! Warmer than yesterday and got to drive a nicely weathered Western. Working lights Fans bells and whistles. Battle with a grease gun. We won in the end. Only one trolley done. When you have to sit an oil can in some boiling water there is a hint of giving up.
David and Lily.
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Post by Roger on Jan 20, 2022 7:37:36 GMT
Some of our helicopters were fitted with carbon fibre rods to control their flying controls, but they found they burned easily in the event of a fire. So they replaced them with stainless, but found even the very high grade stainless they used was showing signs of corrosion when used in SAR type activities and rough weather ship deployment. Years ago, I bought a second hand Honing machine from Tungam in Gloucestershire. While there, they explained what they made, and I thought it was interesting. They'd developed several Alloys that were extremely corrosion resistant, being used on sub-Sea installations. I'd never heard of them before, but here's their web site and new company name. Whether any of these are of use to Model Engineers is a question worth asking.
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Post by andyhigham on Jan 20, 2022 19:19:05 GMT
I got reminded that citric acid stings like a swarm of killer wasps when it gets in a cut
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Post by steamlaser on Jan 21, 2022 13:37:14 GMT
I am currently stuck at home because Madame gave me a dose of her Covid! Being stuck at home, I managed to get a bit of time in the workshop. I was making some very small bearings out of brass that needed an id of 3 mm and this required the use of a reamer. I could not understand why the reamer appeared not to be removing metal and the shaft going into the bearing was slopping around. After messing up a few bearings, I went back to basics. Turned out my second hand hand set of 0.1 mm drills had two 3.0 mm drills and no 2.9 mm drill.(I have a nearly complete number drill set which should get me out of trouble). I now have to go back with my micrometer and check the whole Metric set. I did delve into my tins of many "spare drills" but they were mainly ancient Imperials of doubtful quality and all the wrong sizes.
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Post by delaplume on Jan 21, 2022 20:32:16 GMT
I am currently stuck at home because Madame gave me a dose of her Covid! Being stuck at home, I managed to get a bit of time in the workshop. I was making some very small bearings out of brass that needed an id of 3 mm and this required the use of a reamer. I could not understand why the reamer appeared not to be removing metal and the shaft going into the bearing was slopping around. After messing up a few bearings, I went back to basics. Turned out my second hand hand set of 0.1 mm drills had two 3.0 mm drills and no 2.9 mm drill.(I have a nearly complete number drill set which should get me out of trouble). I now have to go back with my micrometer and check the whole Metric set. I did delve into my tins of many "spare drills" but they were mainly ancient Imperials of doubtful quality and all the wrong sizes. Well there's a co-incidence--- I needed a 3mm drill to-day as part of trying to restore the smokebox assembly on a 5 inch gauge Winson kit 14xx 0-4-2 loco ( God, they really ARE a bag of nails, aren't they ?? ).... Predictably it wasn't in the drill holder so a No.31 was substituted....This is the first time I've actually done any work on a Winson loco and it's quite scary just how BAD / CHEAP the design is......EG}--- smokebox shell,door ring and door are all in Aluminium which has warped with use and now has more openings than the kitchen collinder...!!...... Usual case of enthusiastic beginner buys a bargain loco then asks for help to make it go.... Oh well...
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dscott
Elder Statesman
Posts: 2,437
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Post by dscott on Jan 22, 2022 1:21:35 GMT
The secret is bunging 30 to 40% away from the Winston kit! The problem is getting the list of the bits to bung. Alex in our Club got his to work and go round the track on its last outing!!!!!
We spent the day with someone off here and after lunch did a tour of the extensive WORKSHOP. I counted 6 cars being worked on in between some impressive machinery. And steam models. And still not enough room. Well at least they all do not need MOTs or Road tax when complete. Yes that old.
David and Lily.
Yes we lost track of time, all party's having late dinners Love for the Microwave.
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timb
Statesman
Posts: 512
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Post by timb on Jan 22, 2022 12:58:32 GMT
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,906
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Post by JonL on Jan 22, 2022 13:17:07 GMT
I've not been feeling myself lately, sometimes I pop my head in the workshop and do a bit but more often than not just tidy up a little. Hoping to regain my enthusiasm soon.
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timb
Statesman
Posts: 512
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Post by timb on Jan 22, 2022 13:27:59 GMT
I've not been feeling myself lately, sometimes I pop my head in the workshop and do a bit but more often than not just tidy up a little. Hoping to regain my enthusiasm soon. I have periods like that Jon. It does tend to pass with time. I think you are doing the right thing, sometimes even tidying up you can find something that sparks an interest and all of a sudden you are making and doing and back into it again. I tend to avoid touching the technical stuff until I am 'in the mood'.
The dark nights and cold short days don't help, spring will be with us again soon!
Keep your chin up mate!
Tim
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