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1
From Kits/Castings / Re: A Robinson from rejects.
« Last post by Jo on Today at 06:43:32 PM »
I hope that space has a reinforced base?   ;)

At 14Kg it will be one of the heaver set of castings but I can cope  ;D

Castings   :cartwheel: castings   :pinkelephant:

Jo

P.S. As you can see Surus my Elephant also has a passion for castings  ;)
2
Your Own Design / Re: Triumph 650 Twin Engine
« Last post by Vixen on Today at 06:42:53 PM »
Hello Mike
Sorry to hear about the rocker box problems. **it happens from time to time. But those two carbs are your compensation, they are looking oh so beautiful.

Mike
3
Your Own Design / Re: Triumph 650 Twin Engine
« Last post by Ye-Ole Steam Dude on Today at 06:24:36 PM »
Still following along Mike and cannot wait to see this beauty run.

Thomas
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Introduce Yourself / Re: New member from South Wales
« Last post by Ye-Ole Steam Dude on Today at 06:21:41 PM »
G' day Steve and welcome to the MEM Forum.

Thomas
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From Kits/Castings / Re: A Robinson from rejects.
« Last post by Alyn Foundry on Today at 06:14:20 PM »


 :thinking: I seem to have found a space that is crying out for a set of these castings  :)

Jo

Thanks Jo.  :ThumbsUp:

I hope that space has a reinforced base?   ;)

Cheers Graham.
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Your Own Design / Re: Triumph 650 Twin Engine
« Last post by mikemill on Today at 05:55:25 PM »
Progress on the Triumph is a case of two forward one back, after a week of machining the rocker boxes I tried to line up with the head only to realise I had the centre line of the rocker shaft 0.200in out. How did that happen? god only knows or lost the plot when drawing the part, so have to start again.
I consoled myself by making the carburetors, the functional design is by George Britnell who kindly let me have a drawing, the rest is to emulate a Amal carb used by Triumphs.

Mike
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From Kits/Castings / Re: A simple Vertical Steam Engine.
« Last post by Jo on Today at 05:26:42 PM »
So, when is the raffle drawing for the box of castings?   :ROFL:

 :hellno: I thought it would be obvious... They are in need of a bit of fondling and tomorrow is Thursday which is fondling night :embarassed:

Jo
8
From Plans / Re: Building a Muncaster entablature engine
« Last post by Gas_mantle on Today at 04:46:06 PM »
I've now managed to drill the cylinder and cover but seemed to make hard work of it and I'm sure the way I did it wasn't the easiest but here's how I tackled it.

First I made a close fitting threaded plug to hold the cylinder cover down and stop it rotating while drilling. I guess this is overkill but I had a piece of scrap round stock to hand that only needed a couple of minutes work so I thought it worth doing.



I don't have a fancy DRO with PCD functions so it's time to dust off the rotary table and get it centred under the spindle. The co-axial indicator makes it a 2 minute job  :)



With the table centred and it locked in position I centre the cylinder using the same method, although not difficult I found this fiddly and time consuming.



Time to fasten down the cover and give it all a quick check again using the co-ax indicator. I also set the cylinder port face inline with the x axis of the mill.



I'm using 7ba studs so I need 6 2mm holes drilling and the cover opening out to 2.5mm clearance. All that's needed now is to move the mill X axis to drill 4.5mm from the outer edge and rotate 60o between holes.



After doing all 6 then tapping the cylinder I have this.



I'm pleased with the even spacing and they are at the right radius but they are slightly rotated anti clockwise from what I wanted so are slightly off parallel to the port face :(



I guess it's not a lot out but still a bit annoying  :(

Peter.






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From Kits/Castings / Re: A simple Vertical Steam Engine.
« Last post by crueby on Today at 04:29:41 PM »
...
and my supplier forgot the box of castings  :facepalm: I wonder what should do with those :mischief:

So, when is the raffle drawing for the box of castings?   :ROFL:
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Introduce Yourself / Re: New member from South Wales
« Last post by rudydubya on Today at 03:54:44 PM »
Glad to meet you, Steve.  Welcome to the group.

Regards,
Rudy
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