Update: Small oopsy. I forgot to add the washer to the design. The file has it now but the pictures are not updated. It's just a 1" circle with a 1/4" square cut out.
A Simple Perpetual Calendar with space for company logos or whatever strikes your fancy.
Designs are for 1/8" wood.
Very simple to build with minimum gluing, and a clever stand for hanging it. Glue is not really needed for the stand, but recommended for security.
I've given it two sets of dates for 30 or 31 day months, and I put Feb's normal and leap year indicators on the sets.
The real picture is of the 6" version I made with the old stand.
I've tweaked the design a bit so that the max days per month is now on the Month dial.
Very simple to assemble.
Sand all the pieces to make sure they're slippery enough.
Step 1: Glue two bolts ("+" with rounded top) together. Repeat for other bolt.
Step 2: Glue bolts onto the frame with the rounded towards the front. Note: Center hole gets the bolt behind the frame, and the upper hole gets the bolt in front. If needed, sand the backside of the upper bolt so that it's flush.
Step 3: Place the dials on the bolts, apply glue to the arms of the bolts and place the cover/washer to seal them in place.
I shouldn't actually have to tell you which dial goes where and how, do I?
Step 1: Line up the four pieces in pairs so that they make and almost matching pairs. You can glue them together in this step if you want.
Step 2: Line up the pieces and cross-insert together. There are nubs that will help lock all the pieces together.
You can glue the whole stand along the junctions if you feel the need.
A friend of mine wanted a perpetual calendar, so I started designing in my head. Lots of choices and patterns to decide between. There's the wide one with a frame that slides, the board with movable numbers, and a circular one.
I finally settled on a disc version to save a lot of trouble and space.
There's been four iterations of this one so far, but I think this is the final version. :-)