Gallery, Projects and General > Gallery

Halo Three Cylinder Radial Engine

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John-Som:
Eric
Thanks for your kind words. I agree it does sound good when its up and running - the nearest I am likely to get to an I.C. engine ! I do have a few photos taken during the build but I don't think they reveal anything that would add to those in the video. Though if anyone is interested I will happily post what I have.

Certain techniques taught me (by someone who will remain nameless - oh OK it was Bogs) allowed me to make identical parts using simple jigs. In addition the cylinder head blocks were temporarily soft soldered together then machined as one before separating. I also found the use of an adjustable stop a tremendous aid in repeating machining operations quickly and more importantly with great accuracy. This pic shows this technique used when drilling port openings on my current build. I can remove the part from the vice, rotate it 180 degrees and repeat the drilling.

I know there will be many of you who are familiar with these techniques but if they help someone - as they did me - then it's worth repeating.

Apart from Elmer's 'Tiny' the Halo is the latest in a line up of 6 or 7 engines built over the last two years. I will put one or two pics in the gallery in response to the call from Bernd.

JohnS

sbwhart:
Hi John

This is off topic a bit But:-

As I'm looking at buying a mill could I ask what the make is of the mill you are useing.

Cheers

Stew

bogstandard:
I would just like to point out, I have nothing against CNC at all. In fact, if I could get my addled brain around it, I just might invest in a small machine later.

Bogs

John-Som:
Hello Stew
My mill is a Chester Conquest which I have had for about a year and I am well pleased with it. Providing you are only machining smallish items then I am sure you would find it adequate. I did find that in machining a rollover edge on the base plate of my current build that I could have done with a larger mill and it took some jiggery pokery to machine the 9" sides. I have fitted DROs on X,Y and Z axis which transformed my ability to machine accurately. You will find details of my mill at

http://www.chesteruk.net/store/conquest_mill.htm.

I see you are located in Cheshire so you could take a look at the mill in Chesters showrooms - and maybe, in the current economic climate, negotiate a discount. They do thro in a free machine vice which makes their price even more attractive.
JohnS

sbwhart:
Hi John

Thanks for the information, I live in Crewe not far from John, I know where Chesters is I've been over a couple of times when they've had open days and picked up one or two bits of kit they've had on reduction or shop soiled.

Thanks

Again
 :wave:
Stew

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