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Big Blue Saw Blog General Updates

MIT Go-Kart

Shane Colton of the Massachusetts Institute of Technology e-mailed us to tell the tale of the fantastic electric go-kart that he and a group of students built with help from Big Blue Saw. It's electrically powered and features a massive steel flywheel for regenerative braking custom made by Big Blue Saw.



I spent a while wondering how to machine a piece of steel that big and have it balanced. Waterjet makes the most sense because it cuts the center and the OD from the same reference. Anyway, we've got some really nice, clean data now from the regenerative braking circuit. (Imagine spinning those disks up to 3,000rpm and then pushing all that energy into a capacitor.) [...]

I and the group of high school students I work with appreciate the Big Blue Saw service. We've used it now for two summer projects (last year was a DIY segway scooter, which I think has been replicated a few times actually). We have six OMAX machines on campus, and I've used three of them, but it's still easier and cheaper (and often faster) from your site for many things, especially when you factor in material cost. More importantly, in terms of showing students that you can make pretty much anything without necessarily having to be an MIT engineer, it's a great tool.

Thanks for the kind words, Shane.

Shane further notes:

Flywheels this size are pretty dangerous. I wasn't that worried at 3,000rpm. But I wouldn't want somebody to go making a 10,000rpm version and have it fail. A containment is probably a good idea.

In other words, don't try this unless you know what you're doing.

New address

We have a new mailing address:

Big Blue Saw
2566 Shallowford Rd. Suite 104 #146
Atlanta, GA 30345

Note that this is for correspondence, payments, and the like. If you need to send us other things, like materials for machining, please contact us for the correct address.

Special on Aluminum Parts through October 20

Special on Aluminum Parts through October 20

Big Blue Saw is offering great discounts on aluminum parts, now through October 20. All orders of 0.63" (1/16"), 0.125" (1/8") and 0.75" (3/4") aluminum 6061 will automatically receive a quantity discount, even on orders as small as one part.

For a typical order of a single part for $85, this means that your price will now be as low as $9.

Also, our home page now has a form where you can sign up for our mailing list to find out about special discounts.

DXF polyline fix

Some of our customers were having trouble with DXF files that had polylines with embedded arcs. We have a fix in place for this now, so some files that were showing curved segments as straight lines should work correctly now.

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Big Blue Saw
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Waterjet and Laser Cut Custom Parts.
Address for correspondence only:
3522 Ashford Dunwoody Rd NE #145
Atlanta, GA 30319
Phone: (678) WAY-SAW4 (678) 929-7294