[hackerspaces] Lasersaur on kickstarter.com wants $10k to develop an open source laser cutter

[john arclight]

We will definitely check this out! For detailed information on making
a dead-flat and straight set of ways from, well not straight
components, I highly recommend studying the Gingery homemade lathe
book, available here:

http://www.lindsaybks.com/dgjp/djgbk/series/index.html

Arclight

On Mon, May 31, 2010 at 9:39 PM, John Griessen <john at industromatic.com> wrote:
> john arclight wrote:
>>
>> This sound interesting. Most importantly, I think we need a good,
>> sturdy 3-axis gantry [...]all of the heavy-duty movements I've seen have
>> involved one-off
>> salvaged components[...]So I would encourage [...]an open design that
>> could have
>> multiple components bolted on.
>
> At the enDesign makerspace in Austin TX, we have a gantry that is a pseudo
> copy
> of a mechmate that uses V shaped ways and wheels.  One source is:
> http://www.linearvguides.com/linearvguides/vguidewheels.htm
> Not sure of prices, but these wheels and guides have been around for twenty
> years at least
> and are likely cheap.  The smallest wheel is good for 280 lbs down, 65 lbs
> force sideways.
>
> The ways are mounted on a steel frame and can be trued up with washers.
>  Getting
> a steel frame built by welding, yet flat and square is a skill and design
> problem.  Ours is undergoing mods to straighten weld warp by making opposing
> welds.
> That may be good and can be designed in also.  We still need a few pieces
> for the Z axis
> and they may get documented as pythonOCC 3D model code that can be shared.
>
> John
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