Re: [CAD_CAM_EDM_DRO] Re: spindle start and stop

>My previous post:
>>
>> .... some parallel ports may not source enough current to drive the

relay.

>If
>> you have this problem the easiest solution is to get a different parallel
>> port card. It's not likely a problem.
>>
>Terry;
>I just wired up the 2A SSR's I have here. They only draw 2.0 milliamps at
>4V and 2.8ma at 5V.
>You will not have any problems. The wimpiest parallel port can easily
>provide this.
>
>Good luck;
>Doug

I have run into a number of parallel ports that don't source enough to turn
on the solid state relay. But, it is very easy to use the port to drive a
small transistor and have the transistor trip the relay. There is a diagram
and description on my website on the parallel port hookup info at the bottom
of the page.

Tim
[Denver, CO]
http://www.ktmarketing.com/CNC.html