Dyna 2400 end mill holders

[Jeff-Birt]

We have an old Dyna 2400 mill that I just converted to Mach III. Now that it is running good I would like to get some new tool holders; called Dyna today and they can only get the 1/4" shank (guess I could bore it out) for $85 and the 'quick change nut' is $70. Does anyone know whay type of tool holder these machiens use? There is a measured drawing in the manual but it does not state if it is a standard taper or not.

Thanks,

[Jeff-Birt]

Found out some information on this on another forum. The collets it uses are ESX16 which seems to be European. One supplier in the UK, http://www.floydautomatic.co.uk/arbors.htm seems to have a quick change system that might work. I have emailed them for assistance.

[mike944]

Jeff,

standard ER-16 collets are interchangable with ESX16. That's what i use in my dyna.

solid toolholders, are a diferent story. I've never seen any, other than the ones dyna uses.

[Jeff-Birt]

Got a quick reply from Floyd Automatic: Thank you for the enquiry, unfortunately our quick change system is only available with ESX20 or ESX25 taper so it is too big for your spindle.

So that's ano go for my mill at least. Did some more web surfing this mornign and found this: http://www.hightechsystemsllc.com/in...s/Page2045.htm. Which is pretty interesting and low cost. It is made to thread directly to a Sherline spindle but they do have an adapter that you install in the exisisting chuck, http://www.hightechsystemsllc.com/in...es/Page993.htm, and then the quick change threads onto the adapter. And it uses the same collets the my machine surrently does. There are some videos on their website. I called them this morning and found out that the quick change comes with three tool holders. Anyhow, it looks it might work for our purposes.

I also adjusted the voltage reference for the X and Y drivers (OEM) as they were a bit low. Now I am happily traversing at 21 IPM! A pretty good increase from 15 IPM.

[ScottC]

Hi Guys...i too am desperately seaching for quick change holders for the 2400 (no drawbar). The hightech systems er16 holders would have been perfect, but Dereck the owner is no longer making them. Has anyone been able to find a system that would work?