Friday, February 7, 2020

Sand Timer Scroll Saw Pattern.

This sand timer is a fun and somewhat challenging assembly.

Download Below

This is a complete DIY sand timer. The glass hourglass is made from two clear light bulbs. The one I made is a five-minute timer. I show complete instructions to build and calibrate the timer in the pattern.

Supplies you will need:
1/4" wood. I used Baltic birch plywood. Hardwood would look nicer.
1/8" Wood for the middle plug.
Two clear light bulbs. I used the Philips DuraMax 40w.

Fine grit sand. I bought mine at Michaels Crafts. The brand is Ashland. It comes in different coarseness. I bought the Fine Stone Granules.

This project requires a lot of on the fly tinkering. The thickness of the sand and the size of the bulbs you use will change things. The instructions show where you will need to adjust as you go. This is probably an intermediate project.

Warning: Do not attempt this project without safety glasses

More Photos included in the pattern.

I use a Dremel cutoff tool to carefully remove the base.

A wooden plug is used between the two bulbs to control the flow of the sand. Drill the hole as large as possible to still get the time you want. 1/8" or smaller. If you get too small the sand will clog. If you get too large the sand will travel too fast.

Fit the top and bottom capture endplates and the 1/2" wooden dowel. I used hot glue on the bulb to hold it in place. I used CA glue and Activator on the wooden dowels. Glue both ends.

Glue on the decorative top and bottom and you are finished.

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Inlay with a 1" Forstner Bit.
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Products for your consideration:

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Bear Woods has been around since 1987 serving our hobby. They offer a wide range of craft products including Pegas scroll saw blades, clock inserts, toy parts, workshop supplies and much more. In my ten years of writing the Scrollsaw Workshop blog I have never received a complaint about Bear Woods. I get thousands of email a month so that's saying somethi