The base is operational but not complete.
I completed the base - adding a full piece of Formica on the bottom platter
for better rotation. I also completed the upright, and did a dry-run
assembly. Both axis held stable and moved with expected force, which is
great news - especially for the vertical axis - where the 4.5" Formica
disks were a concern.
There is one defect, where I under estimated the torque on the upper plate
of the base. I either need to replace the 1/2" sheet with a
stiffer/thicker/heavier material or add bracing (which would look ugly) to
eliminate flexing. Easiest solution is to set the router up again and spin
out another 3/4" disk which will be heavier but definitely eliminate the
flexing problem it now his. This should take about an hour.
I'm going to get a longer bolt for the verticle axis so there is room for a
lock nut on the wingnut.
Then the wood will all need to be painted with a couple coats - Debbie's
club paint would be welcome.
Finally we need to evaluate how to secure eye pieces and the spotting
scope. Those who have done Internet research on library scopes are
welcome to comment. As is, the following parts can be lost:
1. Focus cap
2. Main tub cap, which has two sub-caps for solar filters (NOT included)
3. Spotting scope (and screws)
4. 2 eye pieces
5. Barlow (suggest we omit from the kit)
I'm headed to Denver Tuesday PM, and back on Sunday.
John
On Fri, Oct 9, 2015 at 5:08 PM, John Riegel <riegel.john@xxxxxxxxx> wrote:
Hi - I've not been watching email but have had my phone on (869-3735) and
been working on it for the last couple hours
Here is where we stand:
- cleaned garage to a workable point
- routed base (two circles, plywood) - have Teflon feet in inventory
- cut uprights, trashed first set, have oak picked out for second set (see
below)
- have 4.5" formica bearings cut for verticle axis (pressure bearing with
locked nuts)
- went to Lowes for HW but forgot my wallet - need to return
To do:
- fix upright (recut, dowel, screw, and glue)
- paint base (have some spare)
- buy and install axis HW
- buy HW for scope to upright mount (to lock scope mounts in)
- verify the vertical pressure bearing works....
Now here is the rub - I'm heading to the Chinese lantern festival at 6:15,
so I'm scrubbing tonight too. I'll send pictures tomorrow AM. If anyone
has time to help this weekend, or special skills/knowledge on the
horizontal axis mount, please call.
John
509-869-3735
On Fri, Oct 9, 2015 at 4:41 PM, <cave8@xxxxxxxxxxx> wrote:
Hi all something has come up and I can't make it. If you guys still want
to meet to get started on this project go a head.
Debbie
------------------------------
*From: *cave8@xxxxxxxxxxx
*To: *sasbod@xxxxxxxxxxxxx
*Cc: *"Gary Jewell" <garyjamie44@xxxxxxxxx>, "Paul Pasha" <
pasha582@xxxxxxxxx>
*Sent: *Friday, October 9, 2015 11:54:31 AM
*Subject: *[SAS-BOD] Re: library telescope build meeting
John
what is your new address? We are still planning to meet at your place at
6:30pm tonight to start building
that telescope right? Or should I say John are you in town so we can meet
at your place to start building the scope :-)
It was good to see you at the last general meeting.
Debbie
------------------------------
*From: *"Steve Krause" <skrause77@xxxxxxxxxxx>
*To: *sasbod@xxxxxxxxxxxxx
*Sent: *Friday, October 9, 2015 9:34:31 AM
*Subject: *[SAS-BOD] library telescope build meeting
What is the address?
Steve