Re: [CAD_CAM_EDM_DRO] Servo Impact Desktop Mills

Hi Jerry,
When I said versions I meant versions within model numbers. They were
constantly upgrading and changing features for the better.
I have seen many of these machines and am amazed at the differences.
A friend has what must be a prototype 2000. Modified PCBs and all.
The motors are 100 step and too weak to survive real use.
I converted it for him, but still with the old motors. It's marginal
The 2400 is a far superior machine, better motors is all it needs and
a PC system. I have one now for myself to finish up.
The leadscrews are acme with a strange looking antibacklash nut.
The 2000 has a simple plastic spring opposed AB nut.
A friend has 3 2400's and uses them all. One is servo driven. Real smooth & quiet.
Having the serarate quill feed is a real boone for tool setting.
Does anyone have additional upgrades to these machines to share?
Are direct table drives (eliminate the plastic 10/1 gearing) worthwhile?
What minimum motor sizes are recommended?
Has anyone located a source for the toolholders?
RichD




Jerry Kimberlin wrote:

>
> RichD wrote:
>
> >Servo and Dyna are two different companies and very at odds with each other.
> >Servo made a benchtop handscrew mill at one time. Early 70's (?)
> >Someone ripped off the design almost to a T, but CNC'd it and manf'd in Taiwan.
> >The Dyna Myte DM2000 was the result.
> >
> Hi Rich, that is exactly what happened, but if you want a Servo then you
> will probably have to settle for the knockoff, maybe. I have never seen
> a Servo on ebay but the Dyna is ever present.
>
> >What you see on Ebay are the Taiwan made Dyna Myte mills in many versions and
> >also there is a CNC lathe as well. They are all very nice iron.
> >
> I can't speak to where they were made. A friend of mine has a little
> Dynamyte - 1800 maybe
>
> >The preferred Dyna mill is the DM2400 as it is bigger and the bugs were pretty much
> >worked out of the electronics.
> >
> My friend's dyna software is pretty much the pits. Doesn't recognize
> certain commands that are there according to the programming manual,
> etc. This one would be a good candidate for an upgrade to modern
> software and PC control as I see it. Everything is there - moters,
> ballscrews, and the controller works - sort of. I don't know if every
> Dyna of that vintage and size has the same problems, but the iron is
> good as you say. I don't even think you would have to replace the
> steppers unless you want it to go faster. For a hobby machine or low
> productivity experimentation it could be an excellent choice I'm really
> looking forward to when my friend might sell his Dyna. Unfortunately he
> wants $3K for it and it isn't worth it.
>
> JerryK