Re: [M]: A cause of LX200 Crazy DEC and RA - or do you all already
| Subject: | Re: [M]: A cause of LX200 Crazy DEC and RA - or do you all already |
| From: | R. A. Greiner |
| Date: | Mon Jun 29 15:26:39 1998 |
Mark Baines wrote:
> "R. A. Greiner"
> >You are lucky that you did not burn out the motor driver amplifiers.The base
> >plate is a major part of the heat sinking for the power drivers for the
> >motors. DO NOT RUN THE SCOPE WITH THE BASE PLATE OFF.
>
> I, like some others, have the scope mounted on top of a wooden (MDF) board
> covered in felt that sits on top of the tripod which acts as a tray, a place
> to hang the hand controller and base locating aid when mounting the scope.
>
> You say that the base plate is a heat sink and as I understand it wood is a
> good insulator. Would this tray have any detrimental affect? Should I be
> concerned?
What a quandry!! I am being asked so many questions I am afraid I will over post
again. I dont want the majordomo mad at me. But here goes anyway.
Almost all of the heat flux goes to the edges of the bottom plate and then into
the massive casting that makes up the base. I think this is more than adequate
heat sinking. A smaller amount of the heat flux goes down the large mounting
bolt. This is probably not significant.
Doc G
