Hi, I am considering buying some TTS tooling for my mill, and ideally I'd like to be able to upgrade to an auto-toolchanger in the future, without losing all the constant Z benefits of the TTS system. How suitable is the TTS for an auto-changer - will tool holders simply drop out when the drawbar is released, or would they have to be pulled/pushed out?
Also, does anyone know what's special about the 'ATC' variant of the TTS system (see this press release http://www10.dcccafe.com/nbc/article...ticleid=343058) - does it just add an extraction groove, and will it be available to buy instead of the standard tool holders?
My Tormach is brand new but the TTS tool holders drop right out after just loosening the drawbar. Like Don said, YMMV. I am very interested in the "ATC" variant of the TTS.
Take a look at this post, and possibly the whole thread.
Whatever toolchanger that is developed for the TTS it will need either to push or pull the toolholder out of the R8 collet, or at least have some means to slightly "spread" the collet on release.
None of my toolholders (11 - I think) fall out when the drawbar is loosened.
At the moment, it looks like the High Tech Systems quick-changer is much easier to impement an ATC with, but the TTS looks sturdier, and has way more choice of chucks, collets etc, as well as the off-line tool-measurement and repeatable Z-offsets. It is also significantly cheaper!
Without some form of taper I think you will be on a looser. The TTS shank measures 19.04mm. The R8 is 19.05mm, with out allowing for any "collet springing". If you stack up all the various tolerances in the ATC it will come to much more than this. I think the taper would allow you to use relatively lloose tolerances (read cheaper solution).
I am so,so sick and tired of swapping tools, re-measuring the Z and starting over again - it's going to be a frustrating wait!