half nut

I picked this up cheap, by modern standards, so I'm not too worried about its imperfections, but there's one glaring fault with this lathe(/mill/drill if you believe the marketing). The carriage seems to be driven entirely be a single half nut. The power feed turns the lead screw; the half...

(first post) I recently purchased a 3950 that appears to have seen little use but needs disassembly and cleaning. First problem so far is the split nut lever is very difficult to turn. I've removed the split nuts and the spring/ball detent and sprayed WD-40 inside. Was able to move the lever...

So on my Logan...being a clutch-less / plain apron design the movement of the carriage relies on the half nut. ... Probably if you're reading this you already know that. However, on my unit when trying to engage the half nut it doesn't seem to engage right away. Even with a super high feed...