Hi,
What about a vernier dividing plate?
A plate or disc is divided into, say, 360 holes plus a center hole. Over this
is placed a second disc or arm with 10 holes taking up just 9 deg. which gives
a vernier precision of 1/10 deg. The laser could be fixed to the top plate
I have CNC equipm
16 USD.
I understand that there are goggles that let the laser line show up in
brighter surroundings.
Edley.
> Sunny Day!
>
> Over the last while I have been thinking about a laser trigon. Not
> one made
> out of brass with precision engravings and a high cost to go along
> wi
Here's a link to the laser trigon I made some time ago:
http://www.twigsdigs.com/sundials/trigon/
And the sundial I made from it:
http://www.twigsdigs.com/sundials/garden/
Bob
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Car
Note: forwarded message attached.
-
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check out Meade Autostar, it looks like something that could be easily
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Sunny Day!
I would like to thank everyone who provided feedback to my email. It was
very useful to hear all your opinions on the subject.
Happy Dialling!
Carl Sabanski
www.mysundial.ca
"Get Hooked on Gnomonics!"
---
https://lists.uni-koeln.de/mai
Carl
I am attaching my custom laser trigon, the image is
but 14k.
I use it for dials about one foot square with gnomons
of copper sheet. Errors creep in quickly as the dial
plate expands in size.
Alignment takes some time, and involves the rotational
axis being well aligned with the style, and
Subject: Re: Laser Trigon
Sent:5/2/07 9:29 am
To: Carl & Barbara Sabanski, [EMAIL PROTECTED]
Carl wrote:
> In terms of laser pointers, all are not created equal. I
>have seen a red laser pointer in operation and is beam is elliptical.
The main problem with bu
[mailto:[EMAIL PROTECTED] Im
Auftrag von Carl & Barbara Sabanski
Gesendet: Montag, 5. Februar 2007 06:44
An: Sundial Mailing List (E-mail)
Betreff: Laser Trigon
Sunny Day!
Over the last while I have been thinking about a laser trigon. Not one made
out of brass with precision engravings a
Sunny Day!
Over the last while I have been thinking about a laser trigon. Not one made
out of brass with precision engravings and a high cost to go along with it.
But one made out of rigid styrofoam board and scales printed on card stock
and a low cost to go along with it. I realize that it
Hi Alexei,
I have built a "lightweight laser trigon" from a laser pointer and some
scraps of perspex. As well as producing hour lines and declination lines on
arbritrary surfaces, the trigon also has an attachment that allows it to
project analemmas about any hour line.
I have writ
Alexei
>
>Some time ago I read on some website about a Laser Trigon - which was a
>laser fitted onto an equatorial axis which I believe simulated the sun and
>could be used for the projection of the sun rays on any surface.
>
>However I have no idea where I saw this and wo
Hello sundial friends
Some time ago I read on some website about a Laser Trigon - which was a
laser fitted onto an equatorial axis which I believe simulated the sun and
could be used for the projection of the sun rays on any surface.
However I have no idea where I saw this and would be grateful
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