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| The CNC experiment build. |
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| NeoTech:
Recipe dont say how much epoxy. is it 10% on weight or 8% ?? |
| RotarySMP:
Because I am using super fine alumina, I'll do a test peice with 10% first. By the way, nice motion hardware collection you have there. Mark |
| NeoTech:
Thanks, need to start phase to, get steel parts, do casting experiments.. Get a spindle and spindle motor.. the last one is elusive. =) |
| awemawson:
--- Quote from: NeoTech on February 19, 2015, 06:46:20 PM ---You have a link to what im looking for would be much appreciated. :) --- End quote --- This is the top(ish) end of the market: http://www.sick.com/group/EN/home/products/product_portfolio/industrial_sensors/Pages/proximity_sensors.aspx There are cheaper ones, ebay abounds |
| Will_D:
Now all this talk about graded agregates sparked an unused neuron: Concrete Springs: Remember seeing a video that if tou mix GRADED glass spheres (i.e.Start with 2 mm dia spheres, the gap between them is Xmm so you add enough X dia. spheres. Now the gap is Y so you add Y dia spheres. Eventually you stop and add portland cement to lock it all together. Result is a Coil Spring. Now back up to date: Quick Google to check if my (only one) functioning neuron was Ok, I came up with thi spaper: http://www.concrete.ie/downloads/ultra%20high%20strength%20concrete.pdf NJoy! :smart: |
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