Packet39 Blog

A review of the Wanhao Duplicator I3

- March 8, 2016

This review is actually 3 months old and was originally published on Reddit. I’m now posting it here, so I can further cash in on it. My giant delta, recently decommission due to lack of use and converted into a laser engraver Wanhao I3 Review About three years ago I got infected with 3DPrintinitus. I …
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Building a laser engraver, Part 1

- March 5, 2016

My wife recently launched, where she sells her unique sculpture-like 3D printed jewelry. She also sells original artwork, and I wanted to laser engrave her drawings on wood. Jon Hylands loaned me his Emblaser unit to experiment. After playing around with it for two weeks this is what I learned: 1. Lasers are an awesome …
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Modifying the Acer X152H Projector to work with a DLP 3D Printer

- February 3, 2016

Why the Acer X152H It’s relatively cheap, It’s 1080p and it’s easy to modify for short-focus. Also, it’s pretty much the only option (as of Jan 2016) if you want an HD image that is crisp across the whole build plate. There are other projectors that are HD and do not require modifying, but you …
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The LittleRP – A review and Getting Started guide


We needed a printer to test Nün&Noot designs without having to cast them, so we got a LittleRP 3D printer. It took a while to calibrate and get good results, so I decided to write a review and a “getting started” guide. Here it is. What is the LittleRP? The LittleRP is a kit for building …
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Introducing CamJuice

- August 19, 2011

CamJuice v1.0 is ready ! CamJuice is an automatic, motion-triggered, photography application for Canon DSLR cameras. Connect your Canon DSLR camera to a laptop or PC, point it somewhere interesting, and step back. When movement is detected, CamJuice will trigger the camera. CamJuice can use the LiveView feed directly from your Canon camera, or from a regular webcam. …
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Automatic bird photoraphy using webcam

- March 26, 2011

Here is an old setup I made a few years ago. That’s my (long dead) Canon 300D, a 550FX Flash, EF 70-200mm F4. A webcam is used to detection motion which then triggers the camera via the USB connection. I always liked Canon for their free camera SDK. I am now working on reviving and …
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How I scratched and fixed my Canon EFS 17-55mm.

- March 25, 2011

Saguaro Lake, Phoenix, Arizona. My knockoff lens hood (3.95$ on ebay) bumps on the railing and flies off the camera. It lands right on the edge of the deck and for a fraction of a second cant decide which way to go. I hold my breath. It flips over and vanishes into the dark waters. …
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