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UPDATED E-stop knob, parametric-ish

by MichaelAtOz, published

UPDATED E-stop knob, parametric-ish by MichaelAtOz Dec 6, 2012

Description

This is designed to replace the standard black knob on a push-off pull-on switch.

I will be using it to control the ATX power-on line, i.e. pin 13 to ground to turn the power supply on.

It will be part of my Printbot control panel, a WIP.

I can't recall where I got the switch, but presume it was in my local car accessories shop.

These are what old cars, really old, used as headlight switches. Without relays.

Note: Technically this switch would not qualify as a safety switch, but for me it will be enough for 12/24VDC.

UPDATE Feb 2013. I finished painting my print room and have been able to print some Things, including this.
v0-3 didn't work out well, see photos.
So I now have v0-4 with higher raised lettering (or parameter to recess), and wider at 17.5mm. Looks much better.

I also changed my slic3r retraction movement to 1mm, prints much cleaner, compare the middle one to the righthand one in the photo.

TIP: When utilising write.scad, use 'include' not 'use' as there are variables which don't get set when you use 'use'.

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Instructions

Use the STL or edit the SCAD file for your custom knob (you will need HarlanDMii's excellent write.scad - thingiverse.com/thing:16193)


My thoughs are to print in red and use a marker to blacken the raised text.

Or if you want a challenge recess the text, join some red & (yellow or black) then red, so it prints a few slices of the other colour below the text recess.

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