A common "weapon of choice" is a machinist's protractor.? It is one of the typical items you might find in a machinist's tool chest.
Square head:
Or Round head:
You reference surfaces on the tool post to other parts of the lathe, work piece, whatever as needed to determine the angle.? It is usually a good idea to use these on Chinese baby, micro, or mini lathes in any case because their markings are notoriously inaccurate anyway.
Once you can set an angle using a machinist protractor (and there are other angle measuring devices out there and some of them more deluxe) you could set it to zero and carve in a zero mark.
Charles E. "Chuck" Kinzer
On Saturday, June 22, 2024 at 04:20:44 PM PDT, clankennedy2004 via groups.io <clankennedy2004@...> wrote:
Hey guys, another slightly off-group post. Sorry. It is lathe related though so please forgive me ! :) So i have an Axmisnter/Sieg C0 Baby Lathe and it came with a compound toolpost that is supposed to allow you to set it for cutting tapers, chamfers etc. You basically need to remove the existing toolpost and put this on on in its place. Its simple enough to do as the toolposts for these lathes are secured via a simple tee nut. The compound toolpost locates in a circular recess above/in the t slot and rotates around this pivot point. However while there is a, kinda, index of the degrees screwed onto the rear of the toolpost dovetail there is no corresponding 'Zero' mark on the crosslide to set the toolpost too ! So how do i set it up to some arbitrary angle like 25 degrees ? Its available on the index but what do i reference it too ! ? Hope someone can help. Cheers and Kind Regards.