Author Topic: Bruce's Rupnow Engine Build  (Read 11482 times)

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #15 on: December 07, 2016, 08:49:21 AM »
Nice work Bruce! Will you make the HVMES meeting this week?

Thanks James

As you will have seen, no I wasn't at the meeting. My wife is heading down to Kaikoura early tomorrow morning to provide support with work so I decided to stay home with her.

I did get a little machining done though.

Major machining on the cylinder all done. Just need to set it up on the mill to drill and tap all the holes



Cheers

Bruce
‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

Offline Joco

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Re: Bruce's Rupnow Engine Build
« Reply #16 on: December 07, 2016, 11:29:04 AM »
The fins look to have come out rather well.
James
Wellington - NZ

Offline Brian Rupnow

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Re: Bruce's Rupnow Engine Build
« Reply #17 on: December 08, 2016, 01:28:56 AM »
Nicer fins than most fish have!!!!

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #18 on: December 08, 2016, 10:41:02 AM »
Workshop night - Wife is away for 6 days with work so I got to do a far bit of swarf making tonight

Mounted the 3 jaw on the mill (poor man's rotary table - not a big deal with CNC) and centred the cylinder and drilled and tapped the holes on both ends


Then I chucked up a piece of tooling ali in the 4 jaw and started the piston.

Part way through though I found that the carriage on my lathe was lifting. So I stripped the cross slide off and skimmed a bit of the carriage gibs to remove the play. Much nicer

Here is the piston ready for some milling and drilling operations tomorrow night.


Cheers

Bruce
‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #19 on: December 10, 2016, 10:29:59 AM »
"Well the best laid plans of mice and men"

My plan was to spend heaps of time in the WS due to the boss being away. But work has got in the way to a certain extent.

But I got a bit done this evening.

Got the piston all set up to drill the wrist pin hole and then turn 90 deg and machined the slot and grub screw hole.



Then machined the wrist pin and fitted it all together

It is starting to look a bit like an engine  :whoohoo:



Cheers

Bruce
‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

Offline Brian Rupnow

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Re: Bruce's Rupnow Engine Build
« Reply #20 on: December 10, 2016, 03:19:15 PM »
Nice stuff, Bruce. that was a good plan, leaving the square shank in place in order to get the internal slot at 90 degrees to the wrist pin hole.---brian

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #21 on: December 12, 2016, 08:55:59 AM »
Hi everyone

Made a start of the cylinder mount last night with milling the block to size

Tonight I hogged out the cylinder recess



Making lots of Christmas decoration in the process


Then I contoured the end


And finally drilled the mounting holes

I am quite please with how it turned out so far


Cheers

Bruce

‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

Offline Ian S C

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Re: Bruce's Rupnow Engine Build
« Reply #22 on: December 12, 2016, 02:39:03 PM »
Hi Bruce, like the idea of turning the piston from square.
Was up in Wellington last week, came home to Canterbury on Thursday, and hoped to get a view of the coast on the way south (Jet Star), cloud all the way.  A week or so and the road Chch to Kaikoura should be open to one lane traffic.
Ian S C

Offline Brian Rupnow

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Re: Bruce's Rupnow Engine Build
« Reply #23 on: December 13, 2016, 12:07:05 AM »
Looking good Bruce. Any progress is good progress.---Brian

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #24 on: December 22, 2016, 06:00:14 AM »
Hi everyone

I have made a bit more progress but no machining shots I'm afraid.

Family shot


Head close up (man those valve cages and valves a small)


The slightly modified Push rod guide


Cheers

Bruce
‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

Offline Brian Rupnow

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Re: Bruce's Rupnow Engine Build
« Reply #25 on: December 22, 2016, 12:36:08 PM »
Looks very good to me Bruce. You'rs will be the first engine up and running in 2017.---Brian

Offline eweb101

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Re: Bruce's Rupnow Engine Build
« Reply #26 on: December 23, 2016, 04:03:54 PM »
Hi Bruce, can you post a link for which engine this is?

I did a quick search and found lots of Brian's engines but can't figure out which one this is.

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #27 on: December 23, 2016, 09:05:11 PM »
Hi Bruce, can you post a link for which engine this is?

I did a quick search and found lots of Brian's engines but can't figure out which one this is.

http://www.modelenginemaker.com/index.php/topic,6248.0.html

Merry Christmas everyone

 :cheers:

Bruce
‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

Offline eweb101

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Re: Bruce's Rupnow Engine Build
« Reply #28 on: December 23, 2016, 07:08:33 PM »
Thanks! That'll make it easier to follow along:)

Offline bruedney

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Re: Bruce's Rupnow Engine Build
« Reply #29 on: December 28, 2016, 06:28:46 AM »
Had a ball in the workshop for over the last week but only a small bit of progress on the engine

Got the Rocker arm and pivot sorted


I got a pair of dial gauges for Christmas and the plan was to make a tramming tool for the mill.

And then I thought "Where am I going to store it?"

Trimmed up a chunk of cedar and turned it into this




Cheers

Bruce
« Last Edit: January 04, 2017, 11:20:54 PM by bruedney »
‘Results! Why man, I have gotten a lot of results. I know several thousand things that won’t work.’ — Thomas Alva Edison

 

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