Chief Engineer to Carlos Fandango
- East Yorkshire
Pop it in here, Andy
u would be supprised how much diffrence putting the bush in the freezer will make and heating the axle ,why dont u make it a slip in fit and loctite it , it wont go anywhere.u can be too criticalHi Andy
I was only cutting about 0.15mm at a time, and 0.1mm as I got closer, so 0.3mm or 0.2mm in diameter. Its a Vertex Taiwanese boring head which I have absolutely no fault with, seems excellent quality. The bits are the usual hobbyist chronos/RDG type kit but seems good enough for my purposes so far.
The recent tweak to the lathe has made a huge difference, for the first time I have confidence in its abilities so instead of sending the axle, bush and lump of steel to make the pin to my mates I shall do it myself. It means I won't have the luxury of liquid nitrogen so I need to work out what the bush and axle need to be finished to so I can press them in successfully.
Sticking the bush in the freezer and/or warming the axle up a bit won't do a great deal I don't think however working out this will be a job for the train to work tomorrow
Currently the axle is bored out to gnats below 52mm and the bush OD is 52.2mm.