HOW TO MAKE A STEAM ENGINE SLIDE VALVE - MODEL ENGINEERING FOR BEGINNERS #10

[@mikael5914]

After watching many of your videos I can state with high confidence that your "shortcomings" in mathematics in school was really your teachers shortcoming in their ability to teach. I was told similar stories when I failed certain classes in high school. Today, several diplomas later, I know better and I'm sure you do too. Keep up the excellent work! That's my report card to you.

[@HDSME]

I must thank you sincerly when i droped out of engineering school I cloud never explain what the problem was Until now you hit the Nail on the head !! they would crame all these thories into my head and but never ever explian how i was to use them and why practically When I asked the question they got very annoyed so I droped out Had a happy life in hvac field did quite well took me a life time to find out on my own thank !!!

[@plm2ajm]

Mr. Appleton, Each time I watch one of your videos, I learn something useful. Thank you sir for taking the time to make and post them.

[@Tocsin-Bang]

I was hopeless at maths at school. About 10 years after I left school I met my old maths teacher, and was able to tell him I was teaching maths! I'd been to teacher training college and learned maths and how to teach it. I Taught maths on and off for the next 40 years!

[@TakeMeToChurchill]

As a beginner (read as: College History Student trying to hammer his way through his first locomotive) these are really helpful, Keith - I only wish more guys of my age were still into this sort of thing!

[@gordonburns6721]

Some bloody great stuff here, Keith, over the last 10 videos. I am a time-served toolmaker and although some of your stuff is not quite 'standard', it works! And if it works, it's right! End of!

[@welshpete12]

Thank you for posting , I know nothing about building model steam engines . But You do explain things very well and in a very clear way !

[@Beemerboy324]

Really good video. I've been an R&D machinist for years and this is still interesting to watch. Plus you sound a lot like Sean Bean.

[@Droningonuk]

12:25 your father is right the council saying is "if a job is worth doing it's worth doing twice!"

[@stevecummins324]

great videos. re things like maths, and machining. Those who turn out to be good at stuff often *are* those who learn the autodidactic skill of "finding out for themselves"" rather than making do with the more limited "do things in a particular way and it'll be useful one day"

[@RustyInventions-wz6ir]

Very nice work sir. Great video

[@keithappleton]

Thank you }:-)))

[@tombeams4116]

Keith I enjoy what and how you do what you do... keep doing what works for ya!!!!!!!!!!!!!!

[@peter-e2q]

Wonderful, you are speaking my language! AND I now understand how to divide a fraction in half!!

[@gordonburns8731]

Your dad told you "If a job's worth doing, it's worth doing well". A good doctrine to follow. My old dad, a precision toolmaker since the end of his apprenticeship in 1931 and a 'reserved occupation' research engineer during WW2 with Kershaw's of Leeds (later, the Rank organisation), developing tank and heavy gunnery optical range-finders and accurate 'computerised' bomb sights to ensure more accurate bombing in our attempt to avoid civilian targets, taught me "Near enough isn't good enough! If it's JUST right it will JUST do"!... basically, only exactitude is acceptable.

[@mikeklaene4359]

For many guys, myself included, learning via practical application is far easier than just theoretical book stuff. In university years ago (like 1965) I was having a devil of a time with chemistry lecture but was excelling in chem lab. Of course, this was before 'they' came up with the concept of ADHD. Lecture was boring whereas lab was FUN!

[@robertweldon7909]

Wow, You are the very first person I have come across to understand fractional (machine shop?) measurement. It is extremely useful when dealing with people who never had any further MEASUREMENT education beyond reading a ruler in the 3rd grade(USA). It is simple and quite accurate. I believe that Imperial measurement is also finer and more accurate than metric. How do you find 1/ 10,000th of a millimeter? I have just recently discovered your channel. Your style is clear and straight forward, great. ;-)

[@keithappleton]

Thanks Robert, I am glad that you find my videos helpful {:-)))

[@rjordans]

Regarding fractions and Pi I frequently use Pi = 22/7 when estimating things

[@R2D2inAustralia]

Suggest printing a full set of plans on the same printer in one session. I remember someone copying plans for a StarWars robot and when he tried to fit the part he found out it was set at point nine, not 100%. Quiet funny for everyone else , at the time 🤗

[@rogercrier]

When steaming, the pressure of steam in the valve cover, combined with the reduced pressure of the spent exhaust steam under the valve result in the valve getting sucked against the face of the valve surface while running, which is very useful and extremely clever. Does this happen when using compressed air? It should do a bit, as it is compressed air verses atmospheric exhaust, but do you ever need to help the valve seat in any way?

[@keithappleton]

The valve will usually seat on Compressed air as well as steam, but on rare occasions when a slide valve doesn't seat this is usually because it's too tight or stuck in the carrier - or the cross block is too tight a fit in the machined slot in the valve.

[@50griz]

Well done Keith, greetings from the USA. I've always had an interest in steam power, I guess from the many stories that were passed on to me from my uncle and others who farmed years back with horses and steam power during the early 1900s and on. I don't mean to ramble, I like to share at times. I'm now ready to start a steam engine build project I think. The workings of the valve you did so well explain here helped me a lot to understand how steam gets to the cylinder and so forth., However, I can't grasp the word you used in the beginning to describe the type of metal or cast material needed. And please understand it's not your UK dialect., The audio just didn't get through for me to hear you well. And many thanks for sharing so much here. And very cool you're a musician by trade, and doing these steam projects too. Take care

[@animaux7842]

In Australia, your remark at 1:16 would be incorrect

[@arklanbk]

100%

[@arklanbk]

if theres nothing holding that slide valve tight against the ports, wont steam escape?

[@keithappleton]

no not at all, the pressure of the steam holds the slide valve firmly onto the port block.

[@arklanbk]

so the slive valve is the exhaust port?

[@raymondj8768]

you could always think of a set of wrenches that always helps me lol

[@mikewalton5469]

brilliant!

[@Mikeeey01NZL]

why do you use cast gun metal? sorry excuse my ignorance but is there a specific reason?

[@keithappleton]

I don't know really, other than the obvious need for a pre cast specific shape in Gunmetal, it also comes in cast sticks too for general use . . . . maybe another viewer may know.

[@claybair4904]

do you know any body working on any new design of steam engines

[@SangGenerasiMuda]

👍👍👍

[@godfreypoon5148]

3:12 - _raises eyebrow_

[@keithappleton]

+Godfrey Poon 'tis the truth, the whole truth & nothing but the truth ....... I was lucky . . . . . .

[@godfreypoon5148]

+Keith Appleton Enough energy to embed itself in the concrete is rather scary. Some time ago, I had a "Strip-It" disc (full details withheld...) fitted to an angle grinder, which I was operating carefully according to the directions, and within the maximum rating of 12,000 RPM by some margin (which I later confirmed with a new disc and an optical tach). The disc exploded without warning - one half flew across the workshop and put a dent in the corrugated iron wall, the other half hit me directly in the guts. It hurt considerably, and the retailer gave conspicuously little sympathy.