Nameplates, Plaques w/Navigation and sundiel because of health.

[SmithDoor]

If look at the lettering on casting of the Astrolabe it is hundreds years The look photo paper it has plexiglass cover for today's a lot easier than hundreds years ago[/b]

This is a Astrolabe hundreds of years old note: All bronze/brass casting with fine lines

Note conter weight.@ bottom. Then ring at top is for finger this keeps the As leave
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The fine lines are easy to read. For other projects need divions.

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Here is being a photo paper the photo print uses plywood or metal base. This can be made weather proof with a sealant.

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Note: all scaled used.
6 scale for 20° 35° ,40° 45° & 55° Latitude Theblast one is Southern Hemisphere on 35° latitude.
Degrees for angles 0°-180° ,0°-90°- 0° & 90-0-90° . Then photo paper first made in Autocad simple essay changes. Protractor is a aluminum this is precision manufactured and easy to come by.
This can used as plaques on engines , switch panel and gauges

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After post 9 will have more data on Name plates and plaques.
If sitting around the Potbelly stove on a cold winter day while talking about Engines and shop related or any that needs a engines or topics appeals to you please post .

The Sundial and Astrolabe a shows different over the centuries

Still talking about fun little projects like Sundial and Astrolabe . Shows different was used on casting over cent

Starting on post 5

I have posted information on tags , name plates , plaques and other brass nameplates, cast plaques , embossed/debossed and fixing old nameplates using Sharpie use years ago indown loads added detaileds on nameplates repairs.

Building a sundiel and Astrolabe.
A face for both Astrolabe and sundial.
Sundiel has 20 to 55 latitude primary Northern Hemisphere and Southern Hemisphere
sundial with dates.
View attachment 162

 

[SmithDoor]

Here a a photo andv link to find the anlge on date and time year.

https://www.wolframalpha.com/input?i=sun+angle+[//place:93612//]+[//date:12/22/2024//]

If think of building a sundial I have a Excel worksheet for the anlges and time too.

Dave

 

[SmithDoor]

Here I'd more data on sun angle

https://aa.usno.navy.mil/data/AltAz

Dave

 

[SmithDoor]

Here how dial looks for Navigation and sundiel face. . This Great way to plates on tools and engines.

Working on improve version the letters are little

Them

Dave

 

[SmithDoor]

This how the dial will look when finished a plexiglass covers to protect the photo paper. The protractor is top for most accuracy. I have used this pass different projects. First try lacquer later used plexiglass with gave a good protection.
Works for machine tools and engines too.
The lacquer work but some time the lacquer would give fussy lines. I did use a artistic spay paint then lacquer. This was better but plexiglass was best for fine lines. If was in damp or wet I would use silicon on edges for better seal.
I have casting, photos and offset printer plates too the down side was time it took and cost.

Cast aluminum Plaque

Using a Manufacture Protractor saves time.
Doing in mill takes time
Note I have not removed the ruler in this photo.

Here is photos of one project. Using photo paper and plexiglass

Finish Using photo paper and plexiglass.

Dave

 

[SmithDoor]

Here the photo paper for combo Sundiel and Astrolabe

Dave

 

[SmithDoor]

Update on face plate. Finally finished with sundial and Astrolabe cobo dial.

If you closely at dial you will latitude form 20° to 55° with southern Hemisphere. The degree number for 180° on protractor the on chart 0 to 90° - 0° both ways then center 90° , 0° -90°
This for making Earth correction for sundial. Astrolabe uses and finding hight of objects.
The wen protractor is for more accurate can be read to ¼°. If veneer is used easily to 0.1° or 10 minutes.

This a fun little project in the Break Room​

It for navy engines

Please post comments on this PROJECT​

The PDF is so you closer look and for your own projects.