Building An Electro-Etching Unit
By Chris Crawford (August, 2003)

More Knives and Tutorials at www.ChrisCrawfordKnives.com.

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Knife maker Bob Warner, one of the moderators on the CDK Forums Tool Time forum, has a website which contains a nice group of tutorials on building some of your own shop equipment for knife making. One of his tutorials contains the diagrams and a parts list for building your own electro-etching unit.

The following is a detailed description of how I built one of these units, and a list of the tools and parts used. Thanks to Bob for making the original information available and his willingness to share his knowledge. Bob’s website is www.warnerknives.com.


Parts and BM_Supplies


Almost all of the parts that I used for this box can be purchased from RadioShack. I would recommend ordering them from their website, www.radioshack.com, because you will stand a better chance of finding everything that you need than you will at one of the local stores. Another advantage to ordering from the website is that you will not have anybody trying to sell you a new cell phone or 60 days of free internet service. There are a few miscellaneous parts that you will have to get somewhere other than RadioShack. Most of these parts can be found around the shop or at Wal-Mart.

RadioShack Parts and Prices as of August 2003 (PDF List of RadioShack Parts)

Slow-Blow 1 1/4"x 1/4" Glass Fuses-1.0A 250V     Cat.# 270-1021     $2.39
Panel Fuse Holder     Cat.# 270-364     $1.79
Toggle Switch with On/Off Label Plate     Cat.# 275-602     $2.69
Toggle Switch DPDT with Center Off Position.     Cat.# 275-1533     $3.49
Heavy-Duty Chassis-Mount Transformer w/leads     Cat.# 273-1512     $9.99
Full-Wave Bridge Rectifiers     Cat.# 276-1181     $2.49
Solderless Banana Plugs     Cat.# 274-721     $2.49
Banana Jacks     Cat.# 274-725     $2.49
120-Volt Neon, Red     Cat.# 272-712     $2.99
Self-Stick Rubber Feet     Cat.# 64-2346     $1.69
Enclosure 8x6x3" (20.32x15.4x7.6cm)     Cat.# 270-1809     $6.99
AC Power Cords 6-Ft. - Black     Cat.# 61-2859     $3.99
Slim Clip 2"     Cat.# 270-346     $2.69
UL Recognized Hookup Wire 18AWG     Cat.# 278-1226     $4.99

Total Price (Shipping and Tax not included)         $51.16
 
Other miscellaneous parts and BM_Supplies needed

Double Sided Foam Tape     Wal-Mart     $?.??
Felt     Wal-Mart     $?.??
Small Rubber Bands     Wal-Mart     $?.??
WireGuard Twist Wire Connectors (12 pk)     Wal-Mart     $?.??
Small Block of Wood     ?????????     $?.??
Small Piece of Stainless Steel     ?????????     $?.??


Tools


This is a complete list of the tools which I used. Not all of these tools are necessary, so if you don’t have something here, just use something else. Most of these are pretty common shop tools though.

More Important Tools

Soldering Iron & Solder
Hand Drill
Drill Bits (1/2, 1/4, 1/8, 5/16)
Sharpie Marker
Scissors
Philips Head Screw Driver (Small)            
Pliers
 
Less Important Tools

Drill Guide
Propane Torch
1/2 Round File
Philips Head Screw Driver (Large)            
Adjustable Wrench
Leatherman Micro-Tool
Electrician’s Tape


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