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| Bernd:
Stew, Brilliant idea of using the 1-2-3 blocks to check squareness. I had thought of perhaps milling a piece of steel using the "X" and "Y" axis of the machine for a square. Can't wait to see the engine finished and "running". :ddb: :ddb: Bernd |
| sbwhart:
Bernd The idea to use the 1*2*3 blocks is all John's:- :bow: he's being a great help. Stew |
| sbwhart:
Hi Chaps Will to start with the bad news had a bit of a desaster shrinking the rim on the hub on the second fly wheel. This rim is steel so the first time I tried it wouldn't fit. For the second try I reduced the hub dia by a couple of thou and left the rim in the oven for a good hour, the bits fit but the hub went in twisted I tried correcting it with a :hammer: and a chunk of wood and ended up cracking the hub, :doh: ho well I'll just have to make another one at a later date. Spent a lot of time on my lathe over the last couple of days, trying to turn my week round :lol: :lol:. Making all the turned bit before doing more milling work. Up to know I've more or less followed the drawing but I'm going to change the way of fixing the valve ports to the base, the drawing uses two screws off set from the centre, I'm going to use one screw on the centre line, this will help getting things lined up. All will be clear when I machine up the base how this will work. I've also chenged the design of the spindle, I've adopted fabricated spindle pins this has a number of advantages, I can use the ground 1/4 bar the threads will screwe up to square shoulders and the length of the pins can be easily adjust to match the length of the cylinders to give the correct amount of end float. Most of this work is plain turning work, so i've added a few pics of little tricks and kit that I use Home made depth gauge used to set length for part off usfull when you've got a few to do and want them all the same. Drill stop again when usfull you'vr got a few to do all the same Parting tool Die Holder and split die Die holder in use with RTP good stuff to tap with especialy stainless Collection of bits |
| bogstandard:
Stew, Be very careful about not using the two screws in the base. It was by using one of the two screws in a slotted hole allowed me to get the engine running. I looked at the single screw method, and came to the conclusion it would not give the correct adjustment required, and was proven right. Also think about fitting o-rings between the bottom control valve and the base. This greatly helps in final adjustment. Just a suggestion. John |
| sbwhart:
Hi John Thanks for the warning, if it doesn't work out I'll still be able to revert to the two screw method. I Hope you'll soon be feeling better take it easy. Stew |
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