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Author Topic: "Stuart Beam Engine" full build  (Read 9378 times)

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Re: "Stuart Beam Engine" full build
« Reply #30 on: June 20, 2019, 08:39:03 pm »
Quote from: Jim on June 20, 2019, 07:05:14 pm
Gary, what is the indexible cutter you are using?

Also with your HSS lathe bits, are they chinese HSS or name brand HSS?
Quote from: Jim on June 20, 2019, 07:07:33 pm
Whoops one more :)

Would something like JB weld which is steel/cast iron coloured camouflage the sand blow holes in the flywheel?

 
Quote from: Jim on June 20, 2019, 06:27:12 pm
Well Gary that was 15 minutes of thorough enjoyment, much better than TV!

Thanks for taking the time to explain each operation so clearly.

Thanks very much Jim for the kind comments.
Answer to question one, not sure the cutter came with the lathe when I bought it. (with lots of tips)
The HSS cutters I bought online from (ozmestore1) I suspect they are chinese but very good quality and his service is very good. (Australian seller)
And yes I too thought about JB weld, might give it a go.
Gary
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Re: "Stuart Beam Engine" full build
« Reply #31 on: June 21, 2019, 12:05:35 pm »
The problem with using JB Weld to fill those casting voids is that it won't polish up like the rest of the flywheel. If you are going to paint those surfaces, then it will work fine, but if leaving them in the bright, then not so well. Perhaps a bit of silver solder (the soft kind), would work a bit better, or perhaps actually peen a small bit of actual silver, or coin silver, into the void. Real silver or the solder will darken over time, but so will the exposed iron, and all of it will brighten right back up with a quick pass of crocus cloth or other fine abrasive.

Just thinking out loud here.
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Re: "Stuart Beam Engine" full build
« Reply #32 on: June 21, 2019, 06:33:49 pm »
Quote from: Stoker on June 21, 2019, 12:05:35 pm
The problem with using JB Weld to fill those casting voids is that it won't polish up like the rest of the flywheel. If you are going to paint those surfaces, then it will work fine, but if leaving them in the bright, then not so well. Perhaps a bit of silver solder (the soft kind), would work a bit better, or perhaps actually peen a small bit of actual silver, or coin silver, into the void. Real silver or the solder will darken over time, but so will the exposed iron, and all of it will brighten right back up with a quick pass of crocus cloth or other fine abrasive.

Just thinking out loud here.

Yes you are right, JB Weld would be a different shade, (color) I didn't think of that, I will give some thought to your other suggestions, thank you for your reply, much appreciated.
I will look on YouTube for any suggestions.
Gary
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Re: "Stuart Beam Engine" full build
« Reply #33 on: June 21, 2019, 11:26:51 pm »
Hi Folks
A few photos of the painted flywheel.
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Spoiler allert
Jim asked if I was going to add a governor, this is one I purchased from Jin, I will try and adapt it to the Stuart.
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Any questions please ask.
Gary
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Re: "Stuart Beam Engine" full build
« Reply #34 on: June 27, 2019, 06:57:16 am »
Hi Folks
Here is part 4 of the build.
Hope you enjoy
Gary
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Re: "Stuart Beam Engine" full build
« Reply #35 on: June 27, 2019, 09:30:38 am »
Another great episode!

As long as the end of the shaft doesn't interfere in any way with the rod, I see no reason to cut it back.

Just a question .... why did you do the taper reaming by hand instead of using power at low RPMs? Perhaps just so you didn't have to bother with the critical alignment of setting it up, which can often take much longer than the actual work itself, especially when it is a quick and easy job like this one?
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Re: "Stuart Beam Engine" full build
« Reply #36 on: June 27, 2019, 12:36:51 pm »
Been somewhat absent in this thread, so had to view a couple of movies to catch up...

You´re doing a great job there Gary !

Thank you so much for taking the time to share, i really enjoy watching the progress on this beaut.
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Cheers
Jan
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Re: "Stuart Beam Engine" full build
« Reply #37 on: June 27, 2019, 06:47:45 pm »
Quote from: Stoker on June 27, 2019, 09:30:38 am
Another great episode!

As long as the end of the shaft doesn't interfere in any way with the rod, I see no reason to cut it back.

Just a question .... why did you do the taper reaming by hand instead of using power at low RPMs? Perhaps just so you didn't have to bother with the critical alignment of setting it up, which can often take much longer than the actual work itself, especially when it is a quick and easy job like this one?

Thank you for the comment
This was a hand reamer and a very small one, I always hand ream as I can feel the way the reamer is cutting, (traditional method) I guess you could machine ream very slowly, but personally I wouldn't, (I'm not that brave)
There are of course machine reamers which are specifically designed to ream under power and with the wide spread use of CNC machines they are becoming more of the norm.
This is the only taper reamer I have of this size so discretion is used when I use it.
Thank You
Gary
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Re: "Stuart Beam Engine" full build
« Reply #38 on: June 27, 2019, 06:54:41 pm »
Quote from: classixs on June 27, 2019, 12:36:51 pm
Been somewhat absent in this thread, so had to view a couple of movies to catch up...

You´re doing a great job there Gary !

Thank you so much for taking the time to share, i really enjoy watching the progress on this beaut.

Thank you for your kind comment.
I didn't realize how hard it is to machine with a camera tripod sitting right on your hip. (it's like having a 4 year old tormenting you)
But thank you, I hopefully will improve my videoing.
Gary
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Re: "Stuart Beam Engine" full build
« Reply #39 on: June 27, 2019, 06:55:25 pm »
I've read a lot of positive comments about Jin's governor's Gary.

Another thoroughly enjoyable video installment of the Stuart build, it really great following this through .
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Jim

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Re: "Stuart Beam Engine" full build
« Reply #40 on: June 28, 2019, 01:17:46 am »
Quote from: Jim on June 27, 2019, 06:55:25 pm
I've read a lot of positive comments about Jin's governor's Gary.

Another thoroughly enjoyable video installment of the Stuart build, it really great following this through .

Thanks for the kind comment Jim.
I'm hoping the governor won't be to much hassle to adapt to the Stuart, I to have heard a lot of positive comments about the governor and Jins service is excellent. ( even Keith Appleton likes them, and that's saying something  ::))
thanks for watching.
Gary
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Re: "Stuart Beam Engine" full build
« Reply #41 on: June 29, 2019, 11:53:07 pm »
Hello Gary,

Just seen this thread, (gotta love a good build thread). I agree with the earlier comments on machining the cylinder, as it's easier to align and gain measurements for everything using the machined flat valve face on a surface plate, to get the correct distance for the bore, and also makes aligning the bore and cylinder end parralel, by using the machined face against one of the jaws. You seem to have done a good job on the cylinder dispute it's poor quality of cast. Maybe you had done this during cleanup, but just run a small needle file down the steam passages as they may also be quite poorly cast so won't allow passage of steam through.

With regards to filming with a camera tripod under you, perhaps maybe a camera mount that attaches to the rear of the cross slide either via a magnetic base or to the tee slots in the cross slide. Either way I wouldn't worry about your filming as it's showing all the details needed. (Also American pie in the background was actually quite pleasant to hear).

Keep up the good work and I look forward to seeing more progress on the build. 😊
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Re: "Stuart Beam Engine" full build
« Reply #42 on: July 04, 2019, 05:00:48 am »
Hi folks
Part 5, machining the column.
Hope you enjoy
Please comment
Gary
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Re: "Stuart Beam Engine" full build
« Reply #43 on: July 04, 2019, 06:34:40 am »
Enjoyed watching the instalment of the build, and it's coming along nicely. I've been looking at the model engineer beam engine, but I fear that it's too big for my lathe, so may have to look at a smaller beam engine design.
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Re: "Stuart Beam Engine" full build
« Reply #44 on: July 06, 2019, 04:34:27 am »
Quote from: Jon Cameron on July 04, 2019, 06:34:40 am
Enjoyed watching the instalment of the build, and it's coming along nicely. I've been looking at the model engineer beam engine, but I fear that it's too big for my lathe, so may have to look at a smaller beam engine design.
Jon, Thank you for your comment.
I have a Bengs beam engine that I'm going to build in the future and they are a lot smaller, the big difference between Bengs and Stuart is that Stuart has a lot more castings and Bengs are constructed more from bar stock and pre-milled prats (you don't need a large lathe or mill)
I haven't built a Bengs yet but there is a lot of samples on YouTube.
I put a link in the post.
All the best.
Gary
https://www.bengs-modellbau.de/en/
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