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projects:marblemachine [20140312-0311] (current)
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 +====== Marble Machine ======
 +Originally downloaded from [[http://​​thing:​148312|Thingiverse]] and also available as an [[http://​​id/​MSRaynsfords-Marble-Machine-11-Kit/​|Instructable]]. Created by [[http://​​ | M Raynsford]] and sold on his web site. He has given us permission to reproduce the work (with his branding) for our own promotions.
 +I have created and tested multiple DXF versions with the aim of minimising the cost per item. Each plan fits on approximately 300x250x3mm MDF and uses 10mm spheres. I didn't want to scale up to standard 16mm marbles as the wood and cutting cost scale too.
 +Currently each unit is approximately:​
 +  * about 50c in wood, but should be able to drop that to 20-30c
 +  * 22c per ball bearing, I bought 100 bulk
 +  * 80c each to laser cut.
 +Moving the job to the large laser cutter will reduce the wood wastage (and drop material cost) and take less time (and drop the cutting cost) but I doubt the branding can be etched on that machine. My aim is to get to under $1 production cost then sell for $2 and give them away too.
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