Re: Replacement for broken 1541-II disk drive levers ?

From: Marko Mäkelä <>
Date: Sat, 24 Nov 2012 15:26:22 +0200
Message-ID: <20121124132606.GC4077@x220>
What if you would 3D-print a plastic part, use that as a basis for 
making a mold, and then mold the real part?

Or what about making molds with a CNC machine? Has anyone tried that?  
Is it possible to do any molding at home? Perhaps not injection molding, 
but I believe you can buy plastic granules and then heat them in a mold.

On Sat, Nov 24, 2012 at 10:43:50AM +0100, wrote:
>Replicator2 looks good in the announcements but the biggest concern so 
>far is that it seems not to work with ABS. Only with PLA, which as 
>someone commented "makes the parts water soluble" ;-)

This reminds me of someone who posted about his experiments on 
comp.sys.cbm some 15 years ago. He had buried some 5.25" floppy disks in 
the garden and was testing if they still work. I guess the disks were in 
plastic (PE-LD) bags, though. :-)

PLA (polylactide acid) is biodegradable plastic, but it does not degrade 
too fast. In my insulated compost bin in the garden, the temperature can 
get up to 60°C in the summer. I sometimes have put PLA packaging there.  
The plastic would shrink and turn into white blobs. Eventually the white 
blobs would degrade too, I guess. AFAIU the municipal bio-waste 
treatment plants separate out the PLA because it degrades so much slower 
than other bio-waste.


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Received on 2012-11-24 14:00:18

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