Category Archives: CNC

A Bicycle Cup Holder Designed with Onshape

IMG_4572-cropAfter doing a short writeup on another publication for this 3D CAD program, I’d been looking for an excuse to do a full design with it. I’ve used Pro Engineer professionally, and have dabbled with a few other CADpackages. Though familiar, with a new CAD program you have to kind of learn where all the buttons are.

After trying it out for a few hours, the design came out well, and, it was great to see my design appear in real life out of my CNC machine. Check out the video below to see my process:

Unlike what those that aren’t familiar with CNC tools may believe, Read more »

Engraving a Yeti Rambler Lid

20-Yeti-Lid-EngravingAfter my wife received a Yeti Rambler drink cup as a gift, I started borrowing it “occasionally,” and decided to buy my own. Despite being quite expensive for a cup (around $30), the quality is amazing, and it really does keep ice in it for an incredible amount of time. Millions of fraternity members can’t be wrong I suppose. Now I just need to get a “Salt Life” sticker.

The simplicity of its design really adds to it’s appeal, however, having two identical cups that my wife and I often use can cause some confusion. Engraving the sides of the cup would be an ideal solution, but the curves of the glass would be difficult for my CNC router to accurately mark. Fortunately, the lids have a flat surface, and they’re available for around $5 each from Yeti directly, or for a generally higher price from Amazon if that’s your preferred vendor.

The Problem

The problem with engraving the lids Read more »

More “Pixel Machining” AKA Halftoning Experiments

I first featured an older version of my “Halftoning” or “Pixel-Machining” routine here, then made a pretty successful stencil using this technique.  Lately I’ve been doing some experimentation with varying the diameter of the circle and engraving tiles with it.  See the following video for a time-lapse of me machining a tiger head with a 1 mm endmill.

Besides this tile, I’ve also experimented with some scrap MDF, and have engraved several other tiles after the “Read More.”  Several have been pictures of Err from ATHF, although I did try to do a human portrait with it originally.  This turned out very poorly (I don’t have a picture of it).  Fortunately, Read more »