More on the toroid “cheat” hack

Remember Jim’s toroid hack that he posted here last week?  It was featured on hackaday, which was really cool to see.

Jim updated his post to his own blog to include some measurements of the effect of breaking the magnet to get the wire wrapped on to it.

He used a simple RL circuit to measure the inductance of the toroid. Very neat to see some values to compare the glued vs. unbroken magnets.

Thanks, Jim!

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Connect with Workshop 88!

Are you looking to get more involved with Workshop 88 beyond this blog?

We have LOTS of ways that our members interact with each other online.
Here are a few ways:

Email list – join our  Google group – You must subscribe to this to see the messages. (We approve everyone who is not a spambot.)

Twitter – Follow @Workshop88

Facebook – like us on Facebook

Meetup – Follow our schedule of all we do at our Meetup page.

Email – Send an email to “info @ workshop88.com”

Chat room – Members often get together during the work week to chat online

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Public meeting notes – 2/14/2013

Last night was a great turnout for the Public Meeting at Workshop 88. Over a dozen makers came out to work on various projects and learn new things at the space.

Our friend Tom M from the Fox Valley ASME chapter came out and had a small part for his project printed on the 3D printer:

2013-02-14 19.52.16Looks pretty sharp! We’ll be waiting to see the finished product.

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Proper prepping for 3D printing

We’ve been doing a lot of 3D printing recently at Workshop 88.  Many times we just download models from Thingiverse, but more and more we are designing our own models.

Using Sketchup is one way that models can be created, but sometimes when you print a complicated model as designed in Sketchup, there are pieces of the model which are missing.

Enter: CADspan.

There is a tutorial available for this Sketchup plugin which allows you to find holes or reversed faces in your models. Recently, there was a model designed which failed to print correctly. When using the CADspan plugin, it was discovered that many of the faces were reversed:

Screen Shot 2013-02-14 at 1.14.30 PM

The red faces are the ones that needed to be corrected. A few right-clicks later and the model was fixed:Screen Shot 2013-02-14 at 1.14.42 PMWe’d love to know your tips and tricks for getting better prints from your own designs. Let us know!

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3D Sears Tower project

New members John and his son came to Workshop 88 yesterday for the Arduino 101 class.  Before class they started printing a model of the Sears Tower that they had designed on their own in Sketchup.

The scale of the model is such that each floor is 1 mm tall. Pretty cool!

Sears Tower modelSears Tower model

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Workshop 88 event at Addison Library

We will be running an event for the Addison public library.  We’re taking our introduction to arduino on the road to do for a group there.

Are there other libraries in the area that would like to know more about makerspaces?  Let us know!

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