Nice work on the two Stew Hart designs Jim and George, both looking good.
George I can't see anything out of place when I look at your albums, can you post a screen shot of what you see?
Having made the base plate for the 1/4 scale otto the other day based on the Lenaz drawings I decided that I did not like it, just looked too flat and wide.
So as I had already altered the lower column to look like the first engine produced rather than what was on the patent drawing I decided to try and replicate the base from that. So milled the above 10mm plate down to a smaller octagon and added a 6x6mm rebate around the top. next mitered some 3 x 25 flat bar taking into account a 3deg draft angle then welded that onto the modified baseplate. next chopped up some 1/4 x 3/8 and welded that into an octagon before welding that to the bottom of the 3 x 25. Finally plug the holes with some 8mm dia bar.
Then just a case of re drilling the 6 holes and fitting the bosses and a quick wipe of filler to tidy it all up. Hopefully a bodge that JS would approve of!
J
BTW if anyone has too much time on their hands then have a look at Wayne Grenning's facebook page of the 1:1 replica of the Otto Langen engine, if you go to the photos section there are about 1000 images of the work involved
Edited By JasonB on 24/07/2017 07:51:06