TTS Tool Holder Block

[rwm]

I am pondering how to build something to hold my TTS tool holders while I change cutters. Right now, I just have end mill holders and ER20 collets.
There is a commercial product like this:


That's cool but I don't have the space to mount it right now. I want something that I can quickly clamp in the vise. Also, that holder won't work well with ER20 ball bearing nuts because the flats are on on the wrong end of the nut usually.
So I am here:

 

[rwm]

30mm wrench

 

[rwm]

 

[RJSakowski]

Tormach makes a bench mounted tool changer for the TTS system. https://tormach.com/compact-tts-tool-tightening-fixture-33034.html

It's pricey but you may be able to find the sprag clutch elsewhere and make your own.

 

[BGHansen]

Here's a post from a Tormach Operator's Facebook page. I can't vouch for the "RC121610 one-way bearings" reference as being the same as Tormach's $50 bench-mount ones. I have the Tormach one mounted to a HF tool cart along with a couple of 5C collet racks that were bushed to 3/4" for the TTS tools.



I mounted a couple of 5-C collet 30-place racks to a HF tool cart; the 5-C holes were bushed with UHMW polyethylene with 3/4" holes for the TTS tools.


Tormach's tightening/loosening fixture. Insert in one side to tighten, insert into the opposite side to loosen. I believe the Facebook post has 2 bearing mounted in both orientations so the wrench is on one side of his holding plate.

 

[rwm]

That is pretty slick. I had not seen that.
Mine will be less effective and bulkier but will only cost $48.95.