Luc 's builds of Rupnow Engine".

[canadianhorsepower]

OK here we go after spending way to much time :fan: to relocate my new lathe installing new DRO new wider screen (see pictures)
it's time to get some more chip flying. I will still layout for a while to confirm everything is set to my expectation.
On the screen I can view all the prints and mag them as much as I want don't have to use paper anymore and when it's race day well I can switch to the TV mode and watch the race.

Went and got some aluminium today and bearings to build Brian's Engine lay out the red ink and will start machining later.
enjoy the picture, a lot more post to come Thm:

 

[Brian Rupnow]

Great Stuff Luc!!! Let's hope that we create something wonderful!!!!---Brian

 

[jwcnc1911]

Nice setup Luc! I'm diggin all the layout tooling!

 

[canadianhorsepower]

Let's hope that we create something wonderful!!!!---Brian

Brian
hope is a way to wish hazard to happen:fan:
in our case I think it should be

Let's work hard and achieve something wonderfull;D

crankshaft you don't like simple press in

cheers

 

[Brian Rupnow]

Luc--I have never had a lot of luck with press fits. I find that when I make parts which should be press fitted together, they either are too loose and fall apart or too tight and distort from the pressure required to put them together. That is, of course, a reflection on my machining abilities. I tend to use cold rolled shafting for crankshafts, and have thought about buying undersize reamers which would give the right amount of interference fit.---Brian

 

[canadianhorsepower]

, and have thought about buying undersize reamers which would give the right amount of interference fit.---Brian

Micro-mark have them on special this summer
over and under size got a set a few years ago
love them

 

[metalmad]

Hi Luc
Great to see you starting a build
Pete

 

[canadianhorsepower]

Hi Luc
Great to see you starting a build
Pete

Thanks Pete, it should be pretty straight forward, all that count
is having fun. it differs from building Robots

 

[canadianhorsepower]

Hi everyone,
can someone tell me were to find #8 socket head bolt:wall:
I have a lot of parts manufactured want to assemble them before taking pictures but cant find bolt. I was going to post pictures now
but the battery is dead in my camera
I'll post later today
cheers

 

[kvom]

If you want to use metric fasteners you could substitute M4 or M4.5 bolts for #8.

 

[canadianhorsepower]

If you want to use metric fasteners you could substitute M4 or M4.5 bolts for #8.

Thanks, that's what I'll do they have them at the hobby shop

 

[Brian Rupnow]

Luc--You can buy them at Fastenal or at Brafasco.---Brian

 

[Brian Rupnow]

Luc--I hope you haven't run into any setbacks. I haven't seen any posts lately.----Brian

 

[canadianhorsepower]

Luc--I hope you haven't run into any setbacks. I haven't seen any posts lately.----Brian

Brian
, no set back but a truck load of work outside the shop
back at it this week end
cheers

Luc

 

[canadianhorsepower]

HOLD ON HERE ARE SOME PICS
I haven't been posting for a while busy, new lathe, air conditioning, wife
here are a few pics from marking to material to machine parts. enjoy and ask
questions if needed.
And yes the rh side and lh side are bolted together till all the thread is done and the bearing cap

 

[canadianhorsepower]

the reason for 2 colors I wont mix them up.
This is taking me like 100 time more time then it should
reason being, I'm using a brand new lathe DRO and Mill DRO
and don't know how accurate they are
I keep telling my students "speed kill" I wont be an example:fan:

 

[Brian Rupnow]

Very nice Luc. I'm not sure if you seen it on my other thread or not, but if that needle bearing doesn't have an inner race, it should be rolling on a hardened shaft, not a mild steel one. I know some people have put needle bearings on their small engines running on mild steel shafts, and even I have done it on my Kerzel hit and miss engine, but its not recommended. You can probably get away with it on a model engine which will see no loading or long term running, but in an industrial application either the shaft should be hardened or the bearing should have an inner race.---Brian

 

[Jasonb]

Luc, are you just using the manual marking out as a guide only to check your DRO? As I can't see the point in both plus on the head your holes look to be off from the marking out.

Not picking on your work, just curious as I don't do a lot of marking out now prefering to pick up an edge and use the DRO from there.

 

[canadianhorsepower]

Luc, are you just using the manual marking out as a guide only to check your DRO? As I can't see the point in both plus on the head your holes look to be off from the marking out.

Not picking on your work, just curious as I don't do a lot of marking out now prefering to pick up an edge and use the DRO from there.

Jason, yes I'm using the marking only to check my DRO If you look at the head some material .050 need to be remove on the lh side. for this one I did pick a point and check if I had the same .050 offset on all the drawing.

I usually don't mark either, If I'd be using my older set up I would not mark either or I could use my CNC and get it over with this is like the final part of the installation check list

 

[canadianhorsepower]

hello again, here are some more pics of the engine, it's coming along good
might go back in the shop this afternoon drill the hole for the bearing,and finishing the main cap. enjoy