*** Time for an Update ***
I have Hand sanded up to 600 Grit, I have experimented a little bit in the past and I find that my Makers Mark blurs a little when grit is less than 600. My theory is the etchant runs through scratches a little? Your guess is as good as mine.
My etch process:
- Wash blade with HOT water and Dish soap, dry with paper towel, wipe down Mark area with Acetone
- Tape Mark in place with Electrical tape, make sure to cover any area that may come in contact with the current. Making sure to press the tape firmly around the stencil Edges.
- Attach Ground (Red Wire) to one of the holes in tang, I like to have the blade lay flat on table to avoid any wobble.
- Apply appropriate etchant fluid to Felt, rub with finger to spread evenly along the pad, dab with paper towel to remove any excess fluid.
- With Etcher on Etch Setting hold on mark for 1 minute. This time varies depending on the hardness of the material you are marking. Where this is Wrought Iron it is fairly soft.
- Switch to Mark Setting Hold on for 5 seconds off for 5 seconds, on for 4 seconds off for 4 seconds and continue to 0
- Turn off etcher remove stencil and spray blade (and stencil) with Windex (W/ Ammonia in it). Rubbing with Windex soaked paper towel.
- Take blade inside and wash again with HOT water and Dish Soap
- Light coat of gun oil over entire blade
Knife ready to be etched
Right after the etch
I then get the 600 grit paper again and sand the mark until it is crisp and clear.
I then continue up through the grits until I am to a Clean 1000 1200 Grit finish. I have had some success with only going up to 600 grit on Hamons.
Time to Etch this thing! Patrice you ready?
I use the Ferric Chloride found at Radio Shack Labeled PCB Etchant Solution this is full strength stuff. I keep a solution diluted 10 parts water to 1 part FeCl in a large plastic container. I also have a stronger solution (2 H20 / 2 FeCl) in a small bowl with some Dish Soap added (Thanks Mr. Wheeler).
My FeCl Etch Process: (Hamons I do a little differently)
This process is a mix of other maker suggestions, personal experimentation and flat out superstition.
- I wash the Hand sanded blade with HOT water and dish soap, on the side I have a container with Super hot water ready to place the blade in to keep the steel hot.
- I then place the entire blade in the bottle of 10/1 solution for 30 seconds. Remove blade and rub with a cotton makeup pad saturated with the soapy solution.
- Allow blade to sit in air for 30 seconds then place in hot water container to warm blade up again.
- Repeat process until you have the look you want. With Damascus and SanMai (Especially Wrought Iron) I increase the time in the solution each cycle.
- Thoroughly spray entire blade with 50/50 Ammonia and rub with paper towel
- Wash hands and entire blade with Hot Soapy water
- Dry off and apply thin coat of gun oil
- Flitz polish with a cotton makeup pad
This is the blade after one of the Etch Cycles
This is the blade after etched and cleaned with Ammonia and Washed. The dark on the core is still covered with Oxidation so the contrast is more than it will be after Flitz polish. This always disappoints me. Haha
Here is the oiled up finished Etch
I am working on the handle design and materials.
I hope to get this done in time for OKCA!!! Getting Nervous.