Adventures with HD Ply: 15 Minute Sundial

Made on a Glowforge
1

Tempus fugit (especially when I’m in the shop with my GF :sunglasses:)

New photo by Dennis Ward

Dang! Forgot to expand the hour lines… :confused:

https://goo.gl/photos/YvpabnkjYqQWrvEFA

77 Likes
2

Friggin awesome!!

7 Likes
3

That’s great. What a perfect use for the Glowforge. The lines look super. Were they engraved?

7 Likes
4

Oooh! Like that! :relaxed:

3 Likes
5

Scored at 1/197,–which is why the hour lines don’t stand out. Next time…

2 Likes
6

I can’t get a zoom in preview on the photos, so I couldn’t tell. First look gives me a good sense of the scoring, that there aren’t heavy burns at the ends. Seems like the hour lines could do two scored right next to each other. Would definitely test how that works, but all in all the score is so precise.

1 Like
7

Have to prototype one of these. Maybe for a new patio. :glowforge::sunglasses:

8

I love this project! What a wonderful thing it would be for school kids to make–teach them about sundials while geeking out with a laser.

2 Likes
9

That’s awesome! How did you know where to mark the lines for each hour?

1 Like
10

http://www.eaae-astronomy.org/WG3-SS/WorkShops/Sundials.html

11 Likes
11

Bookmarked! I wanna make one too!

2 Likes
12

Here’s a pretty neat calculator as well: https://www.blocklayer.com/sundial.aspx This one generates a PDF for you. You can import PDF’s into InkScape to manipulate it and add graphics, etc.

9 Likes
13

That is amazing! Especially for using store bought ply wood! Props to you!:grinning::thumbsup:

1 Like
14

cheers for that, thanks!

1 Like
15

Can’t wait to make one!!!

1 Like
16

Not the one I used, but there are a slew of online generators for every type of dial imaginable – horizontal, vertical, reclining, not to mention the esoteric versions. A far cry from using Meeus’ algorithms, etc. :wink:

I’ll post some of my favorites after I get home.

2 Likes
17

Wow!

1 Like
18

One of the coolest GF projects ever!

Just need to weather-proof it a little…

1 Like
19

Here are the online generators I used, along with some other good ones

http://analemmatic.sourceforge.net/cgi-bin/papercraft.pl
http://analemmatic.sourceforge.net/cgi-bin/sundial.pl

http://www.pandy.me.uk/sundials/wd_calc.htm

Also, you might be interested in

Absolutely-- this was just a draft proof-of-concept. The final version will be permanently mounted, decorated, and (I hope) fully weatherized.

14 Likes