Model Engine Maker

Engines => From Plans => Topic started by: geoff5269 on March 29, 2014, 04:30:41 PM

Title: Benson verticle engine finnished
Post by: geoff5269 on March 29, 2014, 04:30:41 PM
Here are a few pics of my latest project from a design by Antony mount, there are castings available but i chose to make from stock as i already had a flywheel. It's been an interesting project and the first where i got a govenor to operate. I was going to paint much of it but loved the look of shinny metal so left it bear. I blackened the screws and got some small ceramic tiles for the base from a dolls house supplier on ebay. My aim was to get it to run as easy as possible so i used ball bearings where possible and it runs well on just 1psi air.
Geoff
Title: Re: Benson verticle engine finnished
Post by: zeeprogrammer on March 29, 2014, 04:43:46 PM
Beautiful! I really like the color combinations. Very sharp.

Is there a video?  ;D
Title: Re: Benson verticle engine finnished
Post by: Don1966 on March 29, 2014, 05:01:27 PM
Beautiful job Geoff and a nice runner. It is on my list as my next engine build. I like.......... :praise2:

Don
Title: Re: Benson verticle engine finnished
Post by: b.lindsey on March 29, 2014, 05:16:06 PM
Beautiful work Geoff...especially all the detail on the top end!!

Bill
Title: Re: Benson verticle engine finnished
Post by: arnoldb on March 29, 2014, 06:10:09 PM
That looks great Geoff  :praise2:

Kind regards, Arnold
Title: Re: Benson verticle engine finnished
Post by: jonel on March 29, 2014, 09:02:38 PM
That is an impressive build, Geoff .   I love the color combinations and agree that painting it would be a shame.  I had looked at the Polly Model Engineering site for a possible new build and had overlooked this model until seeing yours caused me to rethink that.  I just sent them an email for costs on that kit delivered to Alabama.   Beautiful work!
Title: Re: Benson verticle engine finnished
Post by: vcutajar on March 29, 2014, 10:15:40 PM
That is quite impressive Geoff.  Are those red and black tiles in the base?

Vince
Title: Re: Benson verticle engine finnished
Post by: Kim on March 29, 2014, 10:25:10 PM
You did a beautiful job on this engine Geoff!  I can see why you didn't want to cover up the shiny!

I'd love to see a video of it running, if you care to share that with us.
Kim
Title: Re: Benson verticle engine finnished
Post by: wagnmkr on March 29, 2014, 10:57:23 PM
That is indeed very well done and I agree totally with the no painting.

Cheers

Tom
Title: Re: Benson verticle engine finnished
Post by: GailinNM on March 29, 2014, 11:52:39 PM
Very well done.  Master class modeling.
Gail in NM
Title: Re: Benson verticle engine finnished
Post by: geoff5269 on March 30, 2014, 04:51:47 PM
Thanks for the comments, it's great to be able to share my work when it's finnished.
Here's a youtube video 
https://www.youtube.com/watch?v=lZgcflGS47w
regards Geoff
Title: Re: Benson verticle engine finnished
Post by: zeeprogrammer on March 30, 2014, 04:54:42 PM
Awesome awesome awesome. That is one beautiful showpiece.
And the action is totally smooth.  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Title: Re: Benson verticle engine finnished
Post by: b.lindsey on March 30, 2014, 06:02:32 PM
totally awesome Geoff and amazingly smooth at such low rpm's.  Well done indeed!!

Bill
Title: Re: Benson verticle engine finnished
Post by: fumopuc on March 30, 2014, 08:50:43 PM
Hi Geoff,  a very nice engine. I like this very slow movement very much
Title: Re: Benson verticle engine finnished
Post by: Kim on March 30, 2014, 11:19:09 PM
That's georgeous Geoff!  I love the slow action there.

Does it run fast enough that the govener ever kicks in? :)

Kim
Title: Re: Benson verticle engine finnished
Post by: Dave Otto on March 31, 2014, 12:55:38 AM
Beautiful!

It's nice to see how smooth and slow it runs.

Dave
Title: Re: Benson verticle engine finnished
Post by: Heffalump on March 31, 2014, 10:09:19 AM
wow...
Title: Re: Benson verticle engine finnished
Post by: Jim Nic on March 31, 2014, 10:58:20 AM
Beautiful work there Geoff, well done.  IMHO a good decision not to paint it.

Jim
Title: Re: Benson verticle engine finnished
Post by: geoff5269 on March 31, 2014, 04:11:10 PM
Thanks for all the kind replys guys
here's a bit more about the govenor which i was a bit unsure about because my engine is a bit different to the plans, after a bit of thinking i dived in and came up with this solution. when i just had the govenor and no linkage connected i found when a certain speed was reached the balls flew out and stayed there untill the engine speed was quite slow and this seemed to make sence with the centrifugal force applied.  But when i had added the linkage the weight of it made the action more progressive. The thottle valve is simple with a 1.4mm hole drilled thru a rod which is turned by the govenor link to misalign the holes, the pic shows how to go about setting it up while the engine runs, a small hole in the backnut shows the position of the valve and i have stuck a drill in there so i can see its position and lock it in suitable place. you can decide yourself when you want it to cutoff, it does work  but the video i did was a bit shaky trying to hold the camera and play with the air control
Geoff
Title: Re: Benson verticle engine finnished
Post by: Kim on March 31, 2014, 08:28:43 PM
That's really neat, Geoff!  Thanks for taking the time to explain your control mechanism. :)
Kim
Title: Re: Benson verticle engine finnished
Post by: geoff5269 on June 18, 2014, 08:10:03 PM
When I was building this engine I had to make a few compromises as I decided to use a cylinder I had already made and also the base had to be made differently as I wasn't using castings, I was very pleased with the finished result but you do have that feeling it should have been better. so I decided to do some of it again to see if I could improve it. So here is my second attempt, I like the idea of the pipework going into the base and I've used smaller tiles, not sure about the colours though.
Geoff
Title: Re: Benson verticle engine finnished
Post by: zeeprogrammer on June 18, 2014, 10:03:17 PM
the video i did

video? Did I miss it? Or did you miss it?

Beautiful work.
Title: Re: Benson verticle engine finnished
Post by: philjoe5 on June 18, 2014, 10:58:17 PM
Beautiful work on a great looking engine :ThumbsUp:

Cheers,
Phil
Title: Re: Benson verticle engine finnished
Post by: Don1966 on June 19, 2014, 12:50:41 AM
That's looking great Geoff. I am still working on mine and it looks like your second one I'd close to getting complete. Thanks for the tips I appreciate it.

Don
Title: Re: Benson verticle engine finnished
Post by: Xldevil on June 19, 2014, 02:51:44 PM
What a beautiful engine .
It runs so smooth and it is a pleasure to watch.
Thank You for showing.
Cheers,Ralph
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