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Is there a scanner that can work out cubic centimetres?
SteveD CB500K0:
Well you did ask for cubic centimetres (volume) and then went on to talk about square centimetres (surface area).
You are clearly a man of many dimensions.
Sent from my iPhone using Tapatalk
Charlie J:
:) It can get quite complex, even more so if you put rugosity (surface roughness) into the equation.
But here’s a link to a useful guide and calculator from Caswell Plating that may be of help.
https://caswellplating.com/surface.html
JamesH:
--- Quote from: Charlie J on December 14, 2021, 09:30:00 AM ---Rather than trying to visualise it. Try this exercise.
Take a steel cube 100mm x 100mm x 100mm and work out the surface are and volume.
Now slice the cube in half to give two pieces 100mm x 100mm x 50mm and now work out the total volume and surface area of the two pieces.
You will find that whilst the volume remains the same, the surface area will have increased by over 30%. So the displacement method for determining surface area isn’t remotely accurate even for non complex shapes.
I’ll let you do the actual maths which will clearly demonstrate the point
--- End quote ---
An alternative approach to visualising this is to consider the 10 x 10 x 10 cube (in cuboid form), then visualise yourself smashing the living sh*t out of it with a 10lb club hammer (repeatedly) and imagine the surface area of the resultant, flat, but larger surface area object. Simples.
Charlie J:
Now why didn’t I think of that :D
philward:
Ken, I have found that the plating area only has to be approx. My instructions from the kit state:- (for example)
'Current approx 0.5 Amp - Plating area 2.5 - 5.00 square inches (optimum 4 square inches) - Typical part: Bolt 19mm dia x 50mm long'
This gives you some wiggle room - its other factors like temperature and mixture condition that have made the difference in finish in my experience.
I have made rough calculation on the area by breaking the object visually into sections and applying an area calculation to each section and adding together.
Always had reasonable results over several projects
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