Quick change tool post (QCTP) dismantling modification and reassembly (Season 3 Episode 5 )

I have a quick-change tool post with a set of tool holders that are mounted with dove-tail slots which are held in place by sliding wedges. This was malfunctioning and I dismantled it showing what is inside. It appeared to be a minor manufacturing problem. The brand is Bostar size 250-111 AXA. I found a minor defect in its manufacture and corrected it.
This is a very handy accessory for the lathe. I bought it mainly because it is more rigid than the standard South-Bend/Boxford half-moon or lantern style tool posts. It also automatically keeps the tool centered each time you change tools. I have 7 tool holders that fit the tool post and wish I had 10. Several are dedicated to certain types of tool: knurling tool, parting tool, and boring tool, leaving 4 general purpose holders. Often kits come with only 5 in total.
The standard old Boxford tool holders for High Speed Steel do not fit these tool holders - even the 250-111-XL size. So I spent hours on the bench grinder making them fit. I ground off the bottom, rather than the top, because they can be difficult to get low enough to center. I never use the half-moon tool post any more.
Playlist:
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Season 3 Episode 5 of the playlist
"How to use a general engineering lathe" by Evan Lewis (evan-e-cent now evanecent).
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