2012.04.29

Ping-Pong Balls in the Egg-Bot

Adam, one of the members at Milwaukee Makerspace, organizes The Amazing Milwaukee Race, and he asked for some help making customized ping-pong balls for this year’s event. He specifically asked about using the Egg-Bot to do it, so I volunteered to help… you know, being that I’m an certified Egg-Bot Operator and everything. ;)

Ping-Pong Balls for The Amazing Milwaukee Race

Here’s the end result, a whole bunch of The Amazing Milwaukee Race ping-pong balls. We originally tried to use the official logo, but at such a small size it just wasn’t as legible as we wanted, so I decided to go simple and just use text, but mix it up with all the different Ultra Fine Point Sharpies that I had available.

Egg-Bot Manual Control

I’ve almost always plotted on eggs, so doing ping-pong balls was new to me. I found the trick to doing them well (besides raising the height of the motor that holds the pen arm) was to put the ball in with the printed logo aligned directly upwards, and then using the manual control to spin the ball 180 degrees (1600 steps) so the logo is facing downwards so you can center your plot onto the backside where you’ll have the most room and (in theory) the artwork should be centered. Once you’ve done this, just plot as normal!

The other nice thing about using ping-pong balls rather than eggs is that ping-pong balls are all the same size (in theory) while eggs are all slightly different. Oh, ping-pong balls are also lighter, which means there should be less slippage, which sometimes occurs with eggs due to their weight.

So the next time you need some customized ping-pong balls for an event you’re putting on… give me a call! :)

6 Responses to “Ping-Pong Ball Bot”

  1. So far, on every brand of cheap ping-pong ball I’ve tried so far, you can wipe/scrub off the logo using a clean rag and some acetone.

  2. Thanks Lynne! I had no idea… I’ll suggest this next time. (Also, I need to get some acetone.)

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