Installed the QCTP, but it was difficult

[taiwanluthiers]

I finally installed the quick change tool post. It was not an easy install however.



When I removed the 4 way tool post I was expecting that the stud was screwed in, and I could just unscrew it and somehow machine the stud for the QCTP to fit the lathe. Except the stud is somehow firmly stuck to the compound and no amount of unscrewing would get it loose. I even looked at Abom's video on youtube to see if he has any input for installing a quick change tool post to a Victor lathe (his already has a multifix tool post installed) but I couldn't find any such video. Guess the lathe was given to him with the multifix tool post installed.

So I looked at the parts diagram for the victor lathe and this is how my lathe's tool post stud is installed:



I'm sorry I don't have a picture, but essentially the stud is a one piece of metal that is pressed into the compound (part #33), and secured with a set screw.

What I had to do is take the entire compound apart, then back out the set screw, pound the stud out from under the compound. After the stud comes off I must then cut the stud off, drill a hole and tap it to fit the CXA tool post stud (it's 3/4" - 16 TPI). Then I have to pound that assembly back into the compound, replace the set screw, then put the whole compound together.

The piece of metal on the compound is going to be machined into a tool holder.

I really envy those lathes that have a T slot on the compound rather than this... but I never seen a lathe with a T slot. The piece that comes with the tool post is intended so that you can machine it to fit whatever T slot your lathe has... if it was that easy...

 

[akjeff]

Good job getting it done. I don't see not having a T-slot as being a bad thing. Your's is a more rigid arrangement than a T-slot.

 

[mac1911]

Yup as usual you have to make it fit.
Im new to lathes/‘machine work hut no stranger to making it work in the auto repair trade.

I have a smaller smithy 1220 no T slot but more of a T bolt. Was not a lot of meat on the compound to use the stud and plate provided. So for now I made a Chicago Bolt and a small adapter to go from 10mm to 14mm OD . It fits nice and theres very little movement. When I get better with my skills I might adapt the larger stud and plate or a different compound all together

 

[ddickey]

 

[taiwanluthiers]

Well, that option isn't open to me because I only have one lathe, and with the compound in pieces there's nothing to cut with. So I ended up cutting off the original stud that came with the 4 way and bored and threaded the hole to fit the stud that the tool post came with.