On Sat, Apr 8, 2023 at 03:14 AM, jpow wrote:
4. Unimat pc has an eccentric off center spindle on tailstock that allows adjustment supposedly in one axis (to front / rear of) Wouldnt this? adjustment would move the center point in both horizontal and vertical directions??
Yes, it does, but if you calculate the vertical movement compared to horizontal it is negligible. And if you work out the effect it would have on turning a cylinder, it would make it into a very shallow hyperboloid. Not considered too important for the jobs the machine was intended for. However, I don=t lie the tailstock and will be designing a new one once that project rises up the priority list. I picture a very traditional unit with a horizontal adjustment, largely machined from bocks of aluminium alloy. Details here when - if - it happens.