Re: [DIYbio] improvised tube racks

You can print that, you just have to print it on its side. The small
overhangs that close the circular portions can be closed by "bridging";
the extruder passes over the open space faster than usual, and the
plastic contracts into a straight line as it cools.

It takes tuning, but it can work beautifully.

Alternatively, the model could be re-made with reprap-style teardrop
shapes instead of circular cutouts, meaning it can easily be printed
vertically without special tuning.

On 31/01/12 21:50, Forrest Flanagan wrote:
> That can't be printed on an FDM printer like a makerbot because of the
> overhangs. It'd either need to be redesigned, broken up, printed with
> supports, or done with a different process like SLS.
>
> Alternately, the idea looks ideal for adaptation to a laser cutter.
>
> On Tue, Jan 31, 2012 at 2:31 PM, John Griessen <john@industromatic.com>wrote:
>
>> On 01/31/2012 02:08 PM, kingjacob wrote:
>>
>>> But this is relevant ;) http://**citizensciencequarterly.com/**
>>> 2010/11/26/swiss-army-tube-**block/<http://citizensciencequarterly.com/2010/11/26/swiss-army-tube-block/>
>>>
>>
>> Looks like a difficult size and volume of plastic to 3DP with a makerbot
>> or such, at their current state of capability -- a void or gap would ruin
>> a long print run, and the qty of plastic is large for those plastic
>> filament
>> printers.
>>
>> It IS a great design though, for when 3DP becomes cheap/quick.
>>
>> Meanwhile a drill press and table or radial saw and salvaged
>> chunks of hardwood or plastic and you have similar function.
>>
>>
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>>
>

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