Skip to Content
Dan k
Manufacturing: Part 1 Preparation
Explorations Dan Chen / June 19, 2016


This article will walk you through the steps on how we made the prototype for manufacturing, and my interactions with my manufacture firm, AQS-Inc.

For this project we decided to make a simple modular watch with Atmel 32-bit ATSAMD21G18A ARM.Microcontroller. This is the same chip that is used in Arduino M0.

For our device, we have 4 major components


TinyCircuits just happen to have the design and features that we are looking for, thanks to them, we found the schematics form their website and convert the eagle file to Altium file.

Most PCB house take Gerber file that generated by software such as Altium. Not many PCB fab house take Eagle file, only a few that does..

Before we contact our manufacture to get a quotes and timeline, I have to make a few prototypes to make sure the PCBs would fit inside of the case nicely and  it would friction lock in place.


Our plan is to link all watch module using custom connectors. LiPo battery and peripheral bard will be on different “box”.


Screen Shot 2016-05-31 at 11.16.56 PM


Screen Shot 2016-06-07 at 1.42.12 PM




Watch v8.2 - ALL Watch v8.2 - cover Watch v8.2 - injection molding Watch v8.2 - injection pcb screen


For metal stamping we have two different tools, but it shares one of the tool for bending.



The tooling will only change on two sides, no need to make a completely different tool.

Screen Shot 2016-06-12 at 7.59.06 PM

DSC04209 DSC04227 DSC04232 DSC04236 DSC04243 IMG_3987

DSC04371 DSC04378 DSC04441 DSC04447 DSC04450

Screen Shot 2016-07-07 at 1.50.25 PM Screen Shot 2016-07-02 at 10.38.18 AM Screen Shot 2016-07-01 at 11.17.40 PM Screen Shot 2016-07-01 at 11.18.10 PM Screen Shot 2016-07-01 at 11.19.47 PM Screen Shot 2016-07-01 at 11.22.23 PM Screen Shot 2016-07-01 at 11.22.50 PM Screen Shot 2016-07-01 at 11.23.01 PM Screen Shot 2016-07-01 at 11.24.01 PM Screen Shot 2016-07-01 at 11.53.02 PM metal Screen Shot 2016-07-03 at 8.43.04 AM

DSC05242 DSC05257 DSC05278 DSC05309 DSC05317 DSC05324 DSC05334 DSC05345 DSC05351 DSC05352 DSC05356 DSC05359 DSC05360 DSC05361 DSC05364 DSC05366 DSC05367 DSC05369 DSC05371 DSC05374 DSC05377 DSC05380 DSC05383 DSC05387 DSC05390 DSC05394 DSC05395 DSC05396 DSC05399 DSC05400 DSC05401 DSC05404 DSC05409 DSC05413 DSC05414 DSC05421 DSC05424 DSC05427

DSC05427 DSC05377 DSC05383 DSC05438 DSC05439 DSC05457 DSC05458 DSC05459 DSC05460 DSC05465 DSC05470 DSC05474 DSC05483 IMG_5779 IMG_5787 IMG_5799 IMG_5801 IMG_5803 IMG_5811 IMG_5832 IMG_5842 IMG_5844 IMG_5849 IMG_5852 IMG_5856 IMG_5860 IMG_5866 IMG_5868 IMG_5909 IMG_5913 IMG_5922 IMG_5924 IMG_5929 IMG_5937 IMG_5941 IMG_5947 IMG_5975 IMG_5977 IMG_5991 IMG_5993 IMG_5994 IMG_5997 IMG_6001 IMG_6006 IMG_6008 IMG_6013 IMG_6021 IMG_6022 IMG_6023 IMG_6026 IMG_6042 IMG_6046 IMG_6047 IMG_6051 IMG_6073 IMG_6074 IMG_6078 IMG_6080 IMG_6082 IMG_6083 IMG_6086

DAN K CHEN © 2024