Posts Tagged ‘lasercut’

Behind the Scenes – Geiger Counter Case Fab

Wednesday, October 26th, 2011

CAD

The new case for my Geiger Counter kit started with a CAD drawing of the top and bottom case panels, as shown above.

I am very fortunate to have access to a ULS laser cutter at ATX Hackerspace, which is perfect for cutting 1/8″ acrylic and has a 32×18″ bed.

ULS Laser Cutter @ ATX Hackerspace

I made a few quick prototypes with some scrap acrylic and hardware I had in the lab.  The version shown here is the first iteration, which had taller standoffs and no battery cutout.

Prototype Case

Once I was satisfied with the design, I created an array of panels.  18 cases (36 individual panels) fit on a 32×18″ sheet of acrylic, which just fits in the bed of the laser cutter.

Array

The laser cuts out each panel in the array.

Laser cutting Geiger Counter cases

Here’s a video of the laser cutter in action – the audio is a bit loud, so you might want to turn down your speakers.

This is what the sheet looks like when the laser is done.

Mmm, freshly cut cases!

Freshly cut cases!

Add a few screws and standoffs and this is the result:

Geiger Counter Case

A beautiful clear acrylic case for my Geiger Counter kit!

New product: Laser-cut Case for the Geiger Counter Kit

Monday, October 24th, 2011

Geiger Counter with Lasercut Case

I’m happy to announce the release of a custom laser-cut case for the Geiger Counter kit!

The case, which is made of high quality clear acrylic, comes with standoffs and all the hardware needed to assemble it.

Geiger Counter Case

The case includes access holes for the HV adjustment, the piezo beeper, and the mute button.

Geiger Counter Case

There are also cutouts for the battery compartment and the serial/ICSP/pulse headers.

A pushbutton switch with a 17mm long plunger is included with the case.  This can be optionally installed in place of the existing microswitch S2 on the geiger counter.  The long plunger makes the mute button easier to actuate with the case on.

Here is the kit with the new switch installed:

Geiger Counter Case

You can purchase a Geiger Counter kit with the case included or just the case by itself (f you already have a kit) over on the Geiger Counter kit product page or by clicking “add to cart” below.


Geiger Kit Options





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