Category Archives: Other Projects

CNC Build/Conversion Part III

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cnc_build_015

Also not shown, I replaced all of the bearings in the spindle with higher quality sealed bearings and rebuilt it all with new grease. Will spin much smoother. I also turned the stock pullies down a bit on the lathe before I disassembled it, which will help with balance. Once the CNC is dialed in I will probably just CNC new aluminum ones for even smoother operation.

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CNC Build/Conversion Part I

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I bought this 3 in 1 a few years ago on sale from Grizzly, $1500 iirc, and taught myself the basics of machining and turning. Since then read a lot of books on the subject and lurked here a fair bit.

My background is on the 3D/CAD side of things. I started working in AutoCAD and Rhino (when it was just a free beta), and moved onto media graphics and have done that professionally for a long time now.

Suffice it to say, the digital side is my strong point, machine side, have plenty of learning to do.

To start, I needed to get a better adjustment on the saddle gibs so I made some new stainless bolts with nubs on the end. These seem to work really well as they are a much tighter fit than the stock ones, and much easier to adjust with the larger allen key.

cnc_build_004

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Todd’s Spec Miata Roll Cage – Part 2

By | Fabrication, Other Projects, Racing | No Comments

Part 2 and the finishing of Todd’s Spec Miata Cage.

Overall it took around 8 days to finish this cage, with Todd, Dave, and myself, including the braces for the back of the Ultrashield race seats he is going to be running on both sides of the car.

JarrettRacing

Here’s a good shot of the finished cage. You can see on the 2 forward bars that go down to the footwells, we’ve bent them in a way that gives maximum clearance for the drivers head under the Miata hard top.

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Todd’s Spec Miata Roll Cage – Part 1

By | Fabrication, Other Projects, Racing | No Comments

Last week I started work on a Spec Miata roll cage for a friend of mine from the Need For Speed team. Todd handles the physics tuning for the cars in our game, and is taking the leap, getting into real road racing.

Dave Halabourda, Todd, and myself have been working on this for a few days.

JarrettRacing

First off I needed to build a solid stand for the mandrel bender to mount on. You can anchor the bender to a concrete floor, but to make it mobile, and for ease of installation, I built a mount to slide it into the tailgate of my Tundra. Works well!

You can see the sample bend I made on the tailgate. This allows us to mark any future tubing for where bends need to begin, and where they need to line up once placed in the bender.

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