More Customizable Watch Band

by laird, published

More Customizable Watch Band by laird Jan 9, 2015


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My Pebble band broke. Rather than pay $30 for a replacement, I printed one. Previously only one side broke (see parent). Now the other original strap broke, so I modeled both sides. And while I was at it, I made it Customizable.

This watchband is designed to be printed with a flexible filament such as NinjaFlex, FilaFlex or Taulman3D Nylon. It fits the Pebble, or other watches with a 22mm band. It is designed to replace a broken band, reusing the metal buckle.

You can print it as-is, if your wrist is about the same size as mine or smaller.

Or you can use Customizer, and enter:

  • Length of the strap with holes in it
  • Length of the strap with the buckle
  • Width (defaults to 22mm, Pebble band width)


Print the STL file using any flexible filament. I recommend making it 100% fill, since it's only 2mm thick, and solid is most durable.

To install the strap with the holes, you will need to remove the spring pin that hold the original band to the watch. Slide that pin into the tube at the end of the strap, then snap the pin back into the watch. You may need to use a thin blade to press the pin shorter to remove it, and to help fit the pin back into the watch.

To install the strap with the buckle, do the same thing, using the end with the solid tube to attach the strap to the watch. Slide the loop onto the strap, so that it's in place to hold down the other strap when the watch is on. Now you need to move the metal buckle from the old strap to the new one. To do this, remove the spring pin from the buckle on the original strap, hold the tongue (the part that goes in the holes in the watch strap) so that the loop is in the open slit in the middle of the other end, and slide the pin through the tube, through the loop in the tongue, and into the other half of the tube. Then snap the buckle around the pin, so that it's reassembled just as it was on the original strap.

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Is $Fn the width of the band that you want or the width of the pebble, the band I have in there is 22mm, 32mm is the size of the Pebble watch face.

$fn is the way OpenScad lets you control the smoothness of curves - $fn=8 would render a circle as an octagon, and $fn=360 would render as 360 tiny line segments.

The code right now is hard-coded to a 22 mm wide band. Based on your question, I'm modifying my code to have that as a parameter, which I'll upload in a second.

Sir, If it's customizable. Why do you need more than 1 hole?
Is it just to match other bands or some other purpose
of which I don't know because I am a nubie to mechanics?
(Looking for Moto360 attachment to a 2 degree hand...)

I copied the holes in the original Pebble band. Usually there is "extra" band that goes through the tongue and under the retaining loop. Those holes aren't absolutely required, but I think people are used to seeing them. And they let you adjust the fit after printing, in case you want to adjust the tightness of the band around your wrist. But you're right - once you know exactly how you want it to fit, you could remove the other holes.