Re: Trak cnc 2 control replacement

Seb,

I don't understand why you want to replace the control.

Can't the RS232 be turned on? Having to run in all three axis is
not a problem.

It's unlikely you'll have a better machine after changing controls.
I think you're operating on mis-information to assume the hobby type
controls will be an improvement.

Just my $.02,

Doug





--- In CAD_CAM_EDM_DRO@yahoogroups.com, "seb fontana"
<speedoo51@y...> wrote:

> To retro using what is currantly availible, affordable for home
> use/limited production. Machine is Sharp brand; B'port clone

Series

> 1 size, very nice ways/condition. Reason for change: control must

be

> run in 3 axis, no option; RS232 port not enabled, not capable/no
> means to store/write/retrieve programs with PC. I can assemble
> replacement with instruction, limited electronic experience and

have

> been following article in HSM magazine. Would welcome suggestions,
> comments, thoughts. I am in CT. Can E me if prefer. Following is a
> list of what the present control [Trak cnc 2 made by South Western
> Industries] works with.
>
> 1) Has dc servo motors, 4" dia x 6" long, 4 brush, with encoder.
> Motor volt, amp, torque not listed on label.
> Encoder count not known. Should be around B'port
> Series 1 size. Belt drive of 2:1 reduction.[All Good?]
>
> 2) For DRO{?} has another set of Encoders[?] that pick up x&y
> movement by contact wheels on bed and sadle; attached
> to leadscrew [at quill] for z. Newer Traks use
> same units on x&y..May work somehow in combination
> with encoders on motors. [Good ?]
>
>
> 3) Ballscrews all [xyz] axis. [Got to be Good!]
>
> This is great club, most talk here is above my head so thanks

for

> tolerating !! Seb.