Re: These servo motors worth a darn?

> On the mylar strips, do I just go ahead and order a total number of inches,
> or does it need ot be pre-cut.

You can cut it, but their maximum length is someting like 34 inches.
The price per inch is constant for all pieces over 7" so you might
as well order the lengths you want.

> When I mount it, should it be spring loaded at one end?
>
> Is there a certain amount of tension it should be under?

Dan Mauch glued his (epoxy I think) to a strip of aluminum and put the
whole thing including pushrod-driven read head inside a rectangular
extruded tube. I clamped mine between two pieces of .5" Al U channel
that form guide rails and mounted it in a relatively shielded location
behind the lathe. The reader head is sticks up from below and is
carried by a J shaped bracket. Dan's enclosed method is superior if
you have the room for it - I didn't.

Chris

--
Christopher C. Stratton, stratton@...
Engineer, Instrument Maker & Horn Player
(978)538-5179 work, (617)492-3358 home
30 Griswold Street Cambridge, MA 02138
http://www.mdc.net/~stratton