Re: [CAD_CAM_EDM_DRO] REPRAP COST EFFECTIVE?

On 10/9/2011 3:40 PM, Mike Payson wrote:

> Rather than guessing, I made up a simple model of the part you specify, a
> block 1.625x2.5, a 1.125" hole in the center and two .1875" holes
> on opposite ends. It was not clear from your description whether the
> .1875"
> holes were through the face of the material or from the ends to the
> center.
> I made the model both ways, then processed them with Skeinforge (the
> toolpathing software the RepRap uses).
>
> The full output of each run is pasted below, is pasted below, but the gist
> of it is that these parts will cost about $5.25 each and take about 15
> minutes to run--

Mike,
I assume this is solid, yes? So if the part can be lightened, the cost
can be reduced.

I also noticed you left out some significant things in the quote. Setup,
cleanup (machine/work area), deburring, handling for shipping..just to
name a few off the top of my head.
As these are not commercial quality machines, it is reasonable to figure
life expectancy and replacement cost.

If you think this is nit picking or irrelevant, you won't be in business
long.

Also note, if anyone is using this to justify a machine build or buy,
there is a learning curve before you get good parts.

Of course, if you just want one...<GRIN>

--


Ron Thompson
On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA

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