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Wing Wong
Works at Bright Roll, Inc.
Lives in Cupertino, California
399 followers|70,283 views
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Wing Wong

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Saw this. At safeway. Neat!
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What?  No chilled Rubena?
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Wing Wong

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That thing you want to do that is so important? It can wait. Spend that time with the people who are important to you, for whom you think you are doing all those other important things.

Otherwise, why are you doing all those other things?
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Wing Wong

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Okay, starting to really like wire wrapping. Very very versatile, especially when one starts deviating from the normal rectilinear/up/down approach.

32awg wire wraps VERY easily around components like resistors and LED(s).  Another cool thing, 22awg square wire from the Jewelry wire wrapping stores/etc.(michaels, jo-ann fabrics, beads and things, etc) work great as wire wrap posts. Just measure off a length from the 21' spool and cut off a bit. Instal square post that wraps well, inserts into machined sockets and bread boards, and conducts well enough, since it's either copper, steel, or gold/silver plated steel. Great stuff. It is also about the same hardness/softness as typical wire wrap legs, so all the same familiarity there.
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Quick demo video:

Wire Wrapping FSR Sensor
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Wire wrapped quick prototype circuit to test code against(fsr module with new code for attiny85/adafruit trinket).

#adafruit #trinket #fsr #microcontroller #wirewrapping #prototyping
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https://github.com/WingTangWong/AutoTuningFSRTrigger

The code I've published and am working on improving for auto calibrating FSR inputs for signal generation.
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So, spent an evening wire wrapping the control module that I've published the code for. Basically, takes the variable resistance from three force sense resistors and after calibrating, determines if it should send a trigger signal based on the pressure on the pads. 

Powered by an ATtiny85 micro controller. 15K ohm pull downs. Bicolor status LED(red/green). 

Everything on this is wire wrapped by hand. Unit will be powered by the 3d printer's endstop connection it is plugged into. Normally outputs a HIGH, drops to LOW on trigger. Triggers on any single FSR, holds LOW until all FSR(s) are released. 

Module frame made with small PCB and M3 screws and M3 hex nuts.

External pins made from 22awg square wire.

I wrote the code and designed the circuit for use with 3d printers that use FSR modules for the auto bed level probing(Deltabot based printers).

#deltaprinter   #3dprinter   #fsr   #calibration   #bedlevelling  
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Wing Wong

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This. This is why I go back and learn new nuts and bolts type skills from time to time. There is something about viscerally rewarding and trickle up about learning about the building blocks of things... or in some cases, learning about how to build the building blocks of things.
Inside Toyota Motor Corp.’s oldest plant, there’s a corner where humans have taken over from robots in thwacking glowing lumps of metal into crankshafts. This is Mitsuru Kawai’s vision of the future.
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Touche.
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Wing Wong

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So I've been talking about wire wrapping a bit. So I did a quick recording of me wire wrapping leads to an FSR sensor with some delicate contacts at the end. Sorry for the inverted video... and sorry for all the "ums". Um.. yeah.

#wirewrapping   #fsr   #howto  
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The sounds you hear in the background:

* Budgies calling out for attention. 
* Daughter asking me what I'm doing.
* Our home phone ringing... which I'm ignoring.
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No code yet, waiting for my accelerometers to arrive. But while deleting apps from my phone, it occurred to me that I could use an accelerometer as a probe for the 3d printer auto-levelling feature. 

This is going to share some code with my other probe project, which uses FSR(Force Sense Resistors) for the same function. 
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Hmm... yet another 3d printer to the market.

From the video, it looks like:
* screw drive for vertical movement using couplers/sliders on for corners
* belt drive for one horizontal axis
* rack and pinion drive for the other horizontal axis
* under 5x5x5" cube of printable space
* fully enclosed print head
* auto leveling using some kind of micro motion chip(am guessing a multi-axis chip detecting a "bump" event ala cel phone bump apps)

At $299 for the early bird, production run price, it's a good entrant. At the $500+ get the betas when it comes out price.... no. 
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Have him in circles
399 people
Yi Shi's profile photo
Iván Filpo's profile photo
Miary Andria's profile photo
Niki Van's profile photo
Joydip Das's profile photo
Peter Flor's profile photo
Henning Schmiedehausen's profile photo
Work
Occupation
Linux/Operations Systems Administration
Employment
  • Bright Roll, Inc.
    Operations Engineer, 2012 - present
  • Glam Media, Inc.
    Linux/Operations Systems Administration, 2009 - 2012
  • VMware
    Sr. Systems Administrator, 2006 - 2009
Basic Information
Gender
Male
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Friends, Networking
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Married
Story
Introduction
I'm an IT Guy who loves photography, Anime, Manga, and J-pop.

A long time resident of California, I occasionally travel to other states and find myself marvelling at the differences in culture, as well as the similarities.

My current passions, all of which are second to my family, include:
  • Technology
  • Photography (Wildlife and Cosplay/Model photography rocks!)
  • Continuing to learn!
  • Finding the best way to do more with less time/effort at work!
I've got profiles all over the place, but since my email is with Google's Gmail, might as well centralize. You can catch up with my comings and goings on via my website, my gallery, my twitter, facebook, linkedin, etc. etc...

Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Cupertino, California
Previously
Cupertino, California
Wing Wong's +1's are the things they like, agree with, or want to recommend.
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The world's most popular free resource for learning how to use off-camera flash.

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The world's most popular free resource for learning how to use off-camera flash.

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This is probably one of the biggest rumors I ever posted. And before you read it keep in mind that this is a rumor and not an official news.

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Screen Shot 2013-04-24 at 3.36.20 PM · nano_dual_650x450_02 · facebook · feed · twitter · vimeo · youtube. ©2013 RadioPopper | 229 E Reserve

creativeLIVE
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a live, online worldwide creative classroom

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Request an invite to be among the first to experience a new community only for Little Monsters. Because you were born this way! Name. Email.

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Wing Tang Wong Photography: Eden... A Project In The Works, The Eden Lan...
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In California, we seem to always be trying to get things "back to the way they were". Case in point, the various salt ponds used f