Alt-BEAM Archive

Message #13496



To: beam@sgiblab.sgi.com
From: BUDSCOTT@aol.com
Date: Sun, 16 Apr 2000 15:31:26 EDT
Subject: reverser


I hooked up my reverser to reverse ONE motor on my two motor walker, but
whats the DEAL, the motor no longer moves, i'm assuming you just hook it
right inbetween the bicore and the motor/motordriver! I'm also assuming that
those resitors are what the current goes through to get to the motor when the
reverser is not on! I don't understand this setup.

-Spencer

<http://www.botic.com/users/beamstop>

not a robot scientist
not a college major
not a grad student
not a professor
not a very organized person
just Spencer (isn't that impressive enough?)



13497 Sun, 16 Apr 2000 13:26:38 -0700 RE: reverser "'beam@sgiblab.sgi.com'" Wilf Rigter The Beam Online reverser circuit cannot directly drive an h-bridge input,
let alone a motor. Just use it to drive HC/AC inputs (ie HC/AC245 or
HC/AC240 motor drivers) and all will be well.

wilf


> -----Original Message-----
> From: BUDSCOTT@aol.com [SMTP:BUDSCOTT@aol.com]
> Sent: Sunday, April 16, 2000 12:31 PM
> To: beam@sgiblab.sgi.com
> Subject: reverser
>
> I hooked up my reverser to reverse ONE motor on my two motor walker, but
> whats the DEAL, the motor no longer moves, i'm assuming you just hook it
> right inbetween the bicore and the motor/motordriver! I'm also assuming
> that
> those resitors are what the current goes through to get to the motor when
> the
> reverser is not on! I don't understand this setup.
>
> -Spencer
>
> <http://www.botic.com/users/beamstop>
>
> not a robot scientist
> not a college major
> not a grad student
> not a professor
> not a very organized person
> just Spencer (isn't that impressive enough?)



13498 Sun, 16 Apr 2000 16:33:51 -0400 [alt-beam] Good deal on electronics! Get your multimeters "Joe Tochka" I just had to tell you guys, http://www.questlink.com is having a deal all the month of april. $175 off of a $200 purchase.

But be warned: In all honesty, this is the WORST website I have ever seen! I mean that literally. You have to select how many of an item you would like and click on a button just to get a price for it. And although they have dozens of thousands of items, it is impossible to find anything through their setup, and their search feature doesnt work at all. also, many components that are their can only be bought in bulk. My suggestion is that you go to http://www.netbuy.com and look for what you want, then save it as a quote, and go back to questlink. They will have your quote there and you can buy it through them with free shipping. This is a good deal if you are looking for a multimeter or 700 photodiodes(for $35). Let me know if you find something that is worth buying there.
-Info on the deal:
First, you get $25 for creating an account and looking at the price of something(called "saving a quote"). Then, it will prompt you to fill out a tiny survey where you can tell them what a horrible site they have. Finally, add $200.01 worth of products to your quote list and go to checkout. It will show $75 off, but dont worry. on a $200 purchase they should automatically take $100 off.
Happy horribly tedious searching!

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