observing chair

girko · #1 23-04-2007, 10:51 AM

Hi everyone out their,i noticed a couple of months back that someone had made an observing chair showing plans of how to construct it. very neat idea, unfortunatley i did not save it to my files. Would their be any chance of seeing that article again. Cheers girko.

ving (David) · #2 23-04-2007, 10:58 AM

if you go to the IIS home page and click on projects or whtever it is its there

xstream (John) · #3 23-04-2007, 12:09 PM

Just click on Projects & Articles in the Site Menu, in the left column and you'll find it.
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iceman (Mike) · #4 23-04-2007, 12:18 PM

Do a search of the forum for "Observing Chair" and you'll see some done by others, as well.

ving (David) · #5 23-04-2007, 02:13 PM

i have a nice cow-print one

stringscope (Ian) · #6 30-04-2007, 09:17 PM

Just building 3 observing chairs at the moment. Attached images might be of some help. let me know if you want dimensions.

Cheers,

matt · #7 30-04-2007, 09:25 PM

Yep. And one of those 3 is mine

acropolite (Phil) · #8 30-04-2007, 09:53 PM

Quote:

let me know if you want dimensions.

Yes please, dimensions would make it easier.

DobDobDob (Ron) · #9 01-05-2007, 12:30 AM

Quote:

Originally Posted by stringscope

Just building 3 observing chairs at the moment. Attached images might be of some help. let me know if you want dimensions.

Cheers,

How much do you charge?

stringscope (Ian) · #10 01-05-2007, 07:11 AM

Quote:

Originally Posted by tailwag

How much do you charge?

Hi Ron,

In straight $ terms, I don't and won't

Initially I built one in a real hurry for the SPSP last year. Pretty rough, about 1/2 days work total - really rough in fact

I then built 2 more. I donated one to CAS as a fundraiser and I have kept the other one.

I am now building one for Matt in exchange for an eyepiece and one to donate to CAS as a fundraiser. As for number 6 .............. dunno, might try and swap it for another Ultima eyepiece at some stage

.

Cheers,

stringscope (Ian) · #11 02-05-2007, 09:54 PM

OK, Dimensions.

The entire unit is built from 18mm thick stock of your choice. I have used both fully seasoned Radiata pine and Hoop pine plywood in previous chairs. I guess one could use KDHW but it might be just a little heavy. These ones are Radiata pine.
For the 3 pieces ready for staining in the attached image:

Front and rear legs are 900mm long with the front leg being 140mm wide and the rear leg 80mm. When fully opened, they make an angle of 45 degrees at the hinge point

The bottom of the rear leg is chamfered @ 22.5 degrees (if only I could cut that accurately

) so as to rest flat on the ground when the chair is opened fully.

The front cross arm is 600mm wide, 145mm high in the centre 140mm, tapering to 70mm high at the ends. The bottom edge is chamfered @ 22.5 degrees same as the rear leg.

Both the front cross arm and rear leg have 20mm thick hardwood feet glued to the chamfered edges.

More to come as I progress.

Cheers,

Ric · #12 02-05-2007, 10:10 PM

I bought several tickets at the CAS meeting for that chair. It was a excellent piece of workmanship.

Didn't win it though, maybe better luck with the next one

Cheers

Silversands · #13 02-05-2007, 10:27 PM

Check out IKEA they have a gas strut stool called "vitimin stool" ( maby it makes you healthy ) i bought one for $49 & works well with my 12" lightbridge

Orion · #14 03-05-2007, 08:54 AM

Quote:

Originally Posted by stringscope

Just building 3 observing chairs at the moment. Attached images might be of some help. let me know if you want dimensions.

Cheers,

I noticed Ian that your work bench looks like mine, Router cuts all over it! lol

acropolite (Phil) · #15 03-05-2007, 04:01 PM

Thanks for the dimensions Ian, it's on the project list.