Re: [CAD_CAM_EDM_DRO] Toolchanger for Defiance.

All you need is one signal from the controller to start the system working.
The rest of it can be done wih "antique" electricals....limit swithes and
hard wiring. I've done similar controls for transfer machines and
conveyors, none of which use CNC.

Smoke


-----Original Message-----
From: Marcus & Eva <implmex@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Saturday, December 09, 2000 8:07 AM
Subject: Re: [CAD_CAM_EDM_DRO] Toolchanger for Defiance.

>Hi All:
> I've got a project that's near and dear to my heart, and I need some
>advice on how to proceed.
>As some of you know, I picked up a nice little Defiance VMC a couple of
>years ago, but it doesn't have a toolchanger.
>I want to build one for it.
>I haven't the faintest idea how to proceed with the controller or
>electronics issues.
>The mechanical guts are no problem; my shop is really well equipped.
>The rub is, I know NOTHING about electronics, and vrey little about
>controllers other than how to drive them!
>Am I nuts to tackle a job like this??
>
>I've sorted out what motions I want the toolchanger to make, and their
>sequence, and I have a mechaincal design roughed out.
>I have also determined which bits to drive with a stepper or servo, and
>which bits to drive with a pneumatic cylinder.
>Now I need to figure out how to interface it with my control. (PC driven
>Bridgeport DX32).
>There is a probing port on the machine, and what looks like a 4th axis

port.

>There is also a pneumatic collet closer, that is electrically activated.
>I budgeted about $5000.00 CDN or so to do the job.
>Any more, and I would be better off trading in the machine for a Haas with
>toolchanger, and saving myself the hassle.
>Comments, anyone??
>Any input or help will be greatly appreciated!!!
>
>Marcus
>
>
>
>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the

discussion of shop built systems, for CAD, CAM, EDM, and DRO.

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