Its good to be back but don't know what the Dr. will want to try next.
Hope it doesn't knock me on my arse.
The longest 50deg dovetail needs a strait edge about 17" long.
I hope to do it with the back side of the 60deg straight edge, due to clearance problems, and maintain the flat and angle of the current face.
Then just scape the shorter mating surface to match. Got to keep it all square to the travel as well.
Will probably have to make a 50deg dovetail about 12" long to complete the project.
The little mill-drill I have has crappy, loose dovetails and gibb's which is why I started the 26" long 60deg straight edge.
Tightened the Mill-drill gibbs as much as possible and was careful while machining the straight edge but had to scape a lot of cast iron to get it close.
The mill-drill is loose and the dovetails n gib angles don't match. Proudly made in China.
I really need to correct the mill-drill to make machining a 50deg dovetail easy and will have to make or modify clamps to hold the cast iron for machining.
So, to make a 50deg dovetail I really need to finish my long 60deg straight edge and use it to scrape the mill in and then finish the new gibbs, build clamps to hold the cast iron at 50deg for machining, then
just scape everything I can reach or find and that will put me back on track.
Was bummed to find they had used 50deg on the shaper. Oh-Well It's a learning experience. Far better than sitting on my back-side.