Earlier today I finished a pen made from Vintage Cellulose Acetate, 1930's.What lathe speed do IAP members recommend for sanding acrylic pen blanks with Micro Mesh pads? I would be using water as the lubricant. Any tips for using Micro Mesh pads are appreciated.
I'm going to try this method on my next acrylic pen blank. Don't have Dawn soap but maybe any good quality dish washing soap will work since they act as a wetting agent.When I get to 220 grit I start wet sanding. I get a fresh cup of water with a few drops of Dawn dishwashing soap. I’m told the soap helps keep the paper and pads clean which keeps from scratching your project. I turn the speed between 650- 700 rpm. That’s about it.
Been thinking about this for the past few days - how much of a difference does the cascade make in this process?I use about 1000 to 1200 RPM and I use water with a drop of wetting agent like Cascade Rinse Aid as a sanding lubricant. I rarely need to buff after sanding with this regimen. Dave
Been thinking about this for the past few days - how much of a difference does the cascade make in this process?
Louie, If I hadn't dismantled my darkroom years ago I would likely have used PhotoFlow for this too but Cascade and Jet Dry are easier to get and seem to do the job okay. I've also heard that isopropyl, water, and PhotoFlow makes a very good solution for cleaning the grooves in vinyl records. Who knows, maybe darkrooms and film will make a strong comeback someday like the vinyl industry has. - DaveTo add to Dave's thorough discussion of soap as a surfactant, darkroom photographers commonly used surfactants when processing film. One of the most common was Kodak PhotoFlow which was used in minute quantities in the water used for the final rinse in the development process. The objective was to accelerate the process of de-wetting the film without leaving water spots.
The folks who use diamond paddles/cards/ plates to sharpen tools like to use a 'lapping' solution as a lubricant and to create a slurry as metal is removed in the sharpening process. I know this is a bit controversial, but one school of thought is that tap water with a drop of dishwashing detergent is a perfectly acceptable lapping solution that costs much less than the commercial versions. (Another school of thought is that KY is the best choice for this purpose - I will resist the temptation to comment on that suggestion..)
Wife and I both wear glasses, and I keep us supplied in lens cleaning solution. The recipe I use calls for equal quantities of isopropyl alcohol and demineralized water, with a drop of dishwashing detergent as a surfactant. That's essentially the same stuff you buy at Lenscrafters or the pharmacy, but it costs a lot less.
AGREED! I usually run 500 - 600 for sanding when I need to sand. Sandpaper is for smoothing, removing material is for the tools. It just takes a little practice and maybe sharpening the tool a bit. Wonderful experience.My take on this is slightly different. How much surface area is sanded? about 5 square inches (32 square cm) I use 500 RPM. The purpose of the sanding is to smooth the surface, not remove material.