Mechanics
Freewatch first prototype* - 3d model, assembled and inner view.
Case design versions:
- V1: it was just a simple sketch to learn FreeCAD and throw away
- V2 : it is the first version to be printed, it was done based on the V1 of the PCB
- V3 : second version to be printed, improved v2 based on first printing feedback (for PCB v1)
This design is Copyright Julian Lewis 2014.
This documentation describes Open Hardware and is licensed under the
CERN OHL v.1.2.
You may redistribute and modify this documentation under the terms of
the
CERN OHL v.1.2.
(https://www.ohwr.org/cernohl). This
documentation is distributed
WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY,
SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE
Design tools
This mechanical design has been made with the FreeCAD Open Source
parametric 3D CAD modeler.
FreeCAD is a Free/Libre Open Source Software Tool which runs on Windows,
Ubuntu, Mac OSX and Fedora. It is licensed under the LGPL license.
Component selection ideas
The following is a collection of helpful links for the mechanical design.
Wrist band
Joints
- http://www.outils-horloger.de/html/petit_materiel.php
- http://www.conrad.fr/ce/fr/product/820968/Joints-detancheite-toriques-dhorlogerie-100-pieces
- http://www.rocketseals.com/catalog/o-rings-and-seals-for-metric-measurements/metric-o-rings/metric-o-rings-cross-section-1mm-1-9mm?page=all\&sort_by=2
- http://www.amazon.fr/dp/B00GQ7166I/ref=pe_386181_40444391_TE_item
- http://www.applerubber.com/products/o-rings.cfm
Screws
- http://www.accuscrews.co.uk/
- http://www.trfastenings.com/pages/Home
- http://www.micro-modele.fr/index.php
- http://www.modelfixings.co.uk/fixings.htm
- http://www.rcworld.co.uk/acatalog/Nuts-Bolts-Washers.html
- http://www.accuratescrew.com/Standard-Set-Screws.aspx
- http://www.rc-hobbymania.ch/fr/rc-voitures-accessoires/visseries-c-1193_1780.html
- http://fr.rs-online.com/web/c/visserie-et-fixations/vis-et-boulons/
- http://www.rc-diffusion.com/PIECES-DETACHEES/ROULEMENTS-VIS-ECROUS/VISSERIE-ECROUS..-c49.html
- http://www.miniplanes.fr/accessoires-avion-rc/visserie-c-76_832.html\#/?main_category_id=undefined\&category_id=832\&manufacturer_id=\&sort_list=\&stock1=1\&stock2=1\&stock3=0\&page=1
- http://www.a2pro-online.com
Glass
Plexiglas (backlight)
Glue
Micro USB Cap
FreeCad
Buttons
Case
3D printing services
- http://impression3d.ch/
- http://www.proto-print.ch/
- http://nextdraw.ch/
- http://www.shapeways.com
- http://sculpteo.com/