Also Glen Lingshied also of Oregon has one and maybe Glen will take a look at your pictures and compare them with his lathe.? Hey Glen help us outJ? Dennis

So very good to see you on here Dennis! Dan and I were wondering where you have been the other day. The lathe I have is a lot 4, as common as rocks (kidding, but relative to this one).
?If I were Jason I'd buy some durabar or whatever ductile continuous cast iron his steel seller can provide, and make a new compound base and compound from that. No need for a surface grinder, just get the dovetails close
interference and scrape it. Jason, if you do that and don't want to learn to scrape I'd scrape the dovetails to fit for you if you send them to me. You should have enough there to get all the dimensions.

?I highly suggest you start by making a detailed cad drawing first as that has saved many machinists untold millions of scrapped parts as it will help you plan your operations and avoid snap judgements too late as you might have doing it as you go through the machining process without drawings.
?The compound base in the photos has a very unusual compound receptacle hole and or locking system (Third photo from the top) and I can't understand how it works by looking at it. I also don't know how the square? inside corners could be machined from solid, and assume they were cast originally. You could use an EDM sinker I guess, but the cost would be very high short of getting it done by a donation time by someone with a sinker.
?I assume also from the photo that the piece in that hole is loose and is how the base is locked to the cross slide, is that right? If it is perhaps you could save making that part and use it over in the new base.
?Perhaps you could mill the internal internal features where that fits with a rotary table and successively smaller endmills to form the inside corners, tricky work but doable with patience.
?Is the project worthy of all that work? YES!
Glen

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