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I sent something a few weeks back that never showed up about a man that built a $250 extruder and won the Desktop Factory prize for doing so. With the extruder you can make spools from cheaper pellets that can be colored and various labs are working on color changing materials that can be used to print various test apparatus.
The normal pellets are cheaper than spools and somebody figured the extruder pays for itself at 10 pounds maybe kilos.
Combined with a grinder mistakes be recycled further increasing economy and return on investment.
Anyone willing to work on building a Lyman extruder please volunteer explicitly now. The Lyman extruder should work with PLA, and most other plastics. Having our own extruder is probably the best way for us to go. Besides our own use, we could probably buy it back renting it out to other hackerspaces (and earn some PR).
At least 20m of PLA is available at the space, and most print jobs use <2m. At only a few jobs per week, that filament may last a while. $0.50/m is a reasonable donation for consumption.
By the way, what about Project 3DP? It might be wise to allocate some Project Awesome dividends to finance plastic, or a filament extruder.
Some other options:
*) We could probably trade some ABS for PLA through juri. AFAIK this would be at an ~0.5x exchange rate.
*) There is a lot of ABS at the space. Fairly trivial modification to our extruder may enable us to use it.
*) Nylon filament, in the form of weedwacker line, is about 3x cheaper than PLA/ABS filament. Not sure about quality issues though, and the extruder would need to be modified (same as for ABS).
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Metal box with a big bag of dissecant?
Does anyone here have access to a SLS printer, such as a powder printer or a light polymer printer (like Form 1 or B9 Creator) that I might be able to use for an evening or afternoon? I have a project I am working on that could benefit from being able to use one. Thank you. -Timothy
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