Hi guys, once again my thanks to all for your kind and appreciative comments.
Don, The handwheel was finished late in the evening but that was my thinking too - just a bit late in the day to get it done. This pic is of another valve I made for a double diagonal engine - which I think, definitely looks more in keeping so I shall make another and spoke it.
Now, having made a 'mistake' several years ago having put 6 bolts in a flange when I was duly informed it should only be 4 or eight - what would be correct - three, four or more spokes?
I have little to report save for one small part but I was pleased with the result.
The throttle arm support bearing on the original AM design is just a small slab of 1/8 bar stood vertically with the bearing hole drilled through. It was felt that this would have been a small casting on the fullsize so this is what transpired......
After considering a composite - three parts, silver soldering, JB Weld etc it was decided to mill and turn it from solid
Began with a small block 15 x 12 x 10mm
After squaring up it was set at a 2 degree angle to mill the feet with a 'draft angle' . The 5mm FC3 cutter has had the corners 'radiused' by hand on the offhand grinder
The cross hole was drilled after carefully measuring the distance from the entablature to the centreline of the throttle rod but less carefully adding the two dimensions together and missing a whole mil off
oh:
It was held on a small 4.0mm expanding mandrel and the housing each side turned, again at a 2 degree draft angle
then the surplus material was cut off on the bandsaw and the profile shaped by linishing and finally filing.
A 1.0mm shim was milled from the same material and bonded on with JB Weld then filed to flare in.
And a coat of primer brought it to life
Finally fitted with a bush there's a hint of shades to come. This looks much 'greener' than it actually is. It's 'Vauxhall Reed Green' and which is quite a pale shade. (Must be down to the lighting) Wife likes it though Thm:
It's going to take some very careful measuring - very careful given the last time :-[ - for drilling the bolt holes to position it correctly as theres very little room for opening the bolt holes to allow a degree of lateral movement.
It's a simple part and certainly easy to machine but one which has given a fair degree of satisfaction.
As usual hope thats of interest for someone.
Regards - Ramon