pleased that you have found the images helpful and i hope others have as well most of the work is fairly simple just limiting all the backlash ( methodically) as you progress through the bits ,,, yes the rack is the difficult bit the pinion does,not match the rack and the profile of the rack is rather sharp on the top of the tooth .
my rack is 99% good now , now the ideal machine to sort the rack out is a metal shaper ,with a specyaly ground cutter to the correct profile the job can be done in a matter of an hour and all teeth profiles will be perfect , doing the job by hand takes a lot longer unfortunately i did not have a metal shaper so every tooth was hand cut with files , ( i now have a 7 inch metal shaper under construction been meaning to build one for the last 50 years) as soon as it is built i will take a light skim off every tooth profile to give me a perfect match to the pinion THE LUMPY FEEL has certainly gone in the sx 2 and i dare say the x2 has the same problems
you will also find if you require a perfect zero vernier dial one will haft to make another spider castle drive dog with a tighter machined fit , you will require another mill to do that job (obvious reasons cannot be done on the one you are working on)
you should be able to download the images , might haft to be done one at a time , all pictures are high resolution
best of luck in your rebuild it will be worth it when finished no more cutter / drill braking when the quill suddenly drops tighter vernier adjustment and a smooth rolling rack
barney western australia
--- In X_Series_Mills@yahoogroups.com, "johsverk" <sverker.runeson@...> wrote:
> Hi Barney,
> I want to thank you a lot for your series of photos and comments on the SX2 mill rebuild.
> It will be very useful indeed as I get to improve my own SX2plus mill.
> What it needs especially seems to be work on the rack and pinion, it is not at all as smooth as it should be and as you say, that is the most difficult part I'm afraid
> For future safe and easy reference, I'd want to download all the pictures and comments to my computer, but I don't seem to find any way to do that.
> Maybe I'm just missing something, or is it the case that Yahoo is preventing that?
> --- In X_Series_Mills@yahoogroups.com, "barny" <mortimer@> wrote:
> > i have just finished the last write up of the images in the sx2 rebuild they might be of help to some-one to tighten up there x2 sx2 mill once these bits have been done you will certainly have a tighter machine and smother operating one , when one can nearly get that vernier wheel down to near zero movement , something has been achieved
> > barney