Improved GPS watch

I  improved GPS watch by adding RTC to use it acturally.
Almost of the parts are common to Adafruit's Neogeo watch. I added RTC, a few buttons and on/off switch and changed mainboard from Flora to Pro Trinket 3v and battery back pack for Trinket.

 This one can be charged with USB micro cable.

 By adding voltage divider with 2 carbon resisters, It can show the volume of battery. I have already written rainbow Led code. I used it for this battery checking mode.

Its downstair has mainboard, accelerometer/magnet Sensor, Real time clock and lipoly battery 3.7v 400mah.
I added code for cpu sleep mode and watch dog timer, too. It works for about 26 hours. Before this improving, It works for only 8 hours.

2 rollers brass buckle

I made 3 brass buckles with silver soldering.
At first cutting parts. The thickness of the brass sheet is 1.5 mm.

 Copper tube.

 3mm and 4 mm brass rods.

 Filing all parts to get precise measurements.

 They are checked on the drawing before soldering.

 When the soldering didn't go well, I clean the part by the acid and try again.

 4 mm brass rod is hard to bend.

  I filed them to be a hald diameter.

 Bending is power work. I don't like that.

 Not so bad !

 Cleaning by the acid. Actually the green liquid is cleaner for toilette. The time of the phase is about 5 minutes. It is copper plating a little.

 I polish the brass parts of the front side.

I used one for my leather belt.

Coin case with card holder

I made coin case with card holder.

 The measurements becomes a little large than regular coin case which I made.

 I don't like this style of form because it makes more un usable parts.

 Only the edge was tint.

I put in clear plastic sheet in card holder.

Leather Belly bag

I tried making leather belly bag.
At first, paper forms were used.

 next cutting leather.

 I bought a half size of a cow with split to be used to adjust the thickness.

 When I searched handmade leather belly bag in Etsy, I couldn't find anythings with the zipper. Why the handmade bag doesn't have the zipper ?

 The back side was smoothed.

 Attached hooks.

 Stitching was not easy. I should learn some more things to make something in 3 dimensions from leather.

 Finished stitching.

 Front side.

 I attached hook ring not to be easy to open.

 I made smaller one.