Just milled the block to size and cut a t slot by the looks of it. Permanently has a parting tool and comparitor minus the base fitted.
Occasionally fit my large boring bar.
Doesnt look stock. Done differently on my lever operated slide.
Are you having trouble parting? Using hss? If you have a spindle that isn't threaded then you could run the lathe in reverse with the blade upside down to see if that helps rather than making a rear toolpost.
I simply couldn't get on with hss parting tools, chatter, jamming, blades exploding, deflection. It was a slow and bum clenching process. My spindle is threaded so couldn't try it in reverse.
Went carbide inserts and parting is a breeze now. Even if you are an hss die hard carbide parting tools are the way forward. Ever parting larger diameter fancy alloy steel is no bother if I run it slow and go easy.
Yes I was as my 3 jaw chuck is rubbish allowing work to move. Fine if I use collets, 4 jaw or direct mount a lump to the spindle. It broke my cheap parting tool so I bought two parting blades that I have no way to mount in my qctp yet. The 26mm blade came with a 19mm shank holder, which I could grind down to 15mm to fit. Or I could make a qctp holder to take blades/19mm shank tools.Or modify a 250-101 holder to take blades.
I could buy another lump and make a rear tool post, but the same question, do I mill a slot for the blade to fit directly, or a slot for blade holder/standard tools, or dovetails so I have height adjustment.
Warco has one but it is 50 quid and would need shims for the hieght.