This is how the Schaublin 135 looked when I bought it. At that moment I didn’t realize what a huge task it would be to get it in proper working order.
Yes, somewhere it has the original Schaublin blue color.
The tailstock ram was ok.
The slide ways were heavily corroded. There was no chance of getting this machine in a good working condition without having the bed regrinded.
Also the exterior parts of the apron with support and cross slide had a lot of wear and corrosion.
Worn ways of the apron.
Before I started scraping on the lathe parts, I bought and read the books “Machine tool reconditioning” by Edward F. Connelly, and “Basic scraping modern methods” by Michael Morgan. I then spent 3 months practicing scraping on different cast iron items. To quote Michael Morgan; “Scraping is not some dark craft that only an initiated few can learn. It is true that natural ability will determine to a large part how skilled one may become at this or any craft, but nearly anyone can learn the basics easily. No human sacrifices necessary”
Gear Box.
Gear box painted and starting to reassemble all the gears and levers.
Despite having taken a lot of photos and made a lot of drawings, I messed up the gear shifting cams. On every cam there are numbers stamped, and this gives the right orientation. When I dismantled the gearbox I was not able to see the numbers because of old oil, rust and debris. Luckily the Schaublin factory provided me with drawings of how to reassemble the cams properly.
Spindle head with the 3 super precision bearings.
The original bearings had to be replaced. Run out on the spindle nose is now less than 0.001 mm. As a test, free turning on a 200 mm long bar shows only 0.001 mm diameter difference.
Regrinding of the lathe bed was done by a highly specialized company in Germany. According to some, this company has skills superior to the Schaublin factory. This is the wooden case made for transport to Germany. Before I shipped the parts I removed the rust by means of emery paper and diamond hones. That’s the reason for the grinding marks on the parts in this photo.
The original Schaublin blue is a very nice color, but I decided to paint it green. It looks more modern in this way, but there are days when I do have a little regret that I didn’t paint it in its original color.
Finally I would like to thank Rüdiger Krämer from in Germany for all his help and support to get this machine up and running. His knowledge about machine reconditiong is amazing. He has incredible skills and his workshop in Germany is state of the art. His everlasting encouragement has been invaluable. I would never had been able to complete this work without his help.