--- In Indoor_Construction_at_yahoogroups.com, LeRoy C Cordes
<lcordes_at_...> wrote:
>
> I am putting together Alan Cohen's MiniSlick and have a question.
He
> specifies 0 degrees downthrust and 3 degrees left thrust on the prop
> hanger. How the devil do you guys manage something like 3 degrees
left ?
> The motor stick is 3/32" and about all I think I can do is to make
a
> slit at a shallow angle - How the devil do you manage any accuracy
in
> making these kinds of cuts ?
The same way one manages angles with bigger models. Me, I stick a 3
or 4 inch piece of very straight wire into the bearing so that it
sticks out the front about three inches. Set this over a piece of
paper having a drawn angle, 3* or whatever. Of course, align the
lateral middle of bearing with the vertex of angle, and motorstick
parallel with one of the angle legs. You can do all this before
solidly gluing in the bearing, such as tack gluing, or in the case of
solid motorstick, just friction sometimes works. For the prior slice
into motorstick, you can take an "angled guess," see how it fits,
adjust accordingly, and guess better next time.
Similar method can be used for downthrust, provided you want to
measure downthrust using motorstick datum, which may or may not be
the effective downthrust. With wire pigtails and Harlan style
bearing, further adjustments are possible in field (rather, on-floor)
but getting pretty close in construction makes everyone happier.
Mark F1diddler
Received on Sun Feb 10 2008 - 10:07:04 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:45 CET