Re: [CAD_CAM_EDM_DRO] Machine design

Hello Robin,
check out with the dreammachine groop.
At the moment Wooddragon and Smoke work on realy nice projects.
Have fun
Sven Peter

"DreamMachine@yahoogroups.com" <DreamMachine@yahoogroups.com>

lasernerd@... wrote:

> I'm wondering if anyone has any experience in producing machines,
> such as mills and lathes? I think it would be a lot of fun to produce
> my own machine from scratch (well, not entirely, but mostly).
>
> Right now, I'm thinking about some kind of small horizontal machining
> center. You don't see very many (any?) of these in a small package. I
> understand they're usually used for large production runs, but they
> would be good and affordable for smaller shops, or people who have a
> product, and need to manufacture some parts for it in their basement.
>
> I like the idea of a HMC because of their (potentially) smaller
> footprint with a bigger workspace, and the inherent advantages
> present with HMC's (chips not being cut twice, etc).
>
> Some ideas about the mill are as such: The mill would have an
> envelope of something like 12X12X8" or perhaps a bit larger. The
> machine would be more suited to aluminum and other soft metals,
> although it should be able to cut steels (very important). A custom
> spindle would be produced to accept some type of standard tool holder
> (like ISO-30 taper, or smaller). The system would include an auto
> tool changer, and auto pallet changer. I was thinking about custom
> box ways because they look so gosh darn easy to produce (milled,
> ground and lapped, or perhaps just ground steel flat stock?), yet
> very stable.
>
> The machine's super-structure would be based on steel square tube,
> probably concrete-filled for vibration dampening. Someone recently
> mentioned mounting everything on a granite surface plate, which can
> be had for, usually, $50 or so for a good sized one. I really like
> this idea.
>
> I'm playing with the idea of having the X and Y axes on the box ways,
> and just having the Z axis as a quill.
>
> Obviously, this would not be a dirt cheap machine. However, I would
> like to keep it simple and robust (like the Taig systems) - and very
> much capable doing work within its envelope.
>
> Does anyone have any comments on such an idea? Perhaps I'm just off
> in space right now, but it's certainly something to consider.
>
> Regards,
>
> Robin
>
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