[sdiy] laser cutting aluminum

[Danjel van Tijn]

This their response to my questions:
1. What are your tolerances? +/-0.005"
2. Can you do engravings too? Yes on steel and stainless steel but no
on aluminum.
3. What will the shipping costs be approximately? You must call UPS or
Fedex yourself to pickup here.
4. What is your preffered file format for receiving the CAD files? .dwg or .dxf

cheers,
Danjel






On Thu, May 28, 2009 at 12:50 PM, Tim Parkhurst <tim.parkhurst at gmail.com> wrote:
> On Thu, May 28, 2009 at 12:28 PM, Danjel van Tijn <danjel at gmail.com> wrote:
>> The company is CBR Laser inc.
>>
>> I did not ask for their tolerances but I specified +/- 0.01mm in my RFQ
>>
>> I have not asked if they do engraving, if so then we have hit a
>> goldmine. They said they provide a 2 day turn around once a quote is
>> accepted.
>>
>> cheers,
>>   Danjel
>>
>
> +/-0.01mm? Wow, that's really tight! Seriously, you're lucky they gave
> you such a great price. Of course, a laser cutter is a fairly accurate
> piece of equipment, but I think you could probably go with +/-0.03,
> 0.05 or even 0.10 and still have everything come together just fine.
> For our friends in the USA, +/-0.01mm works out to +/-0.00039" or
> basically a tolerance of eight ten-thousandths of an inch (plus and
> minus four). Generally, the tighter the tolerances, the higher the
> price of the finished goods, so don't set your tolerances any tighter
> than necessary. Typical pieces I do have tolerances of +/-0.3mm on the
> average, and +/-0.10mm for any critical areas (but usually not over
> the entire piece).
>
> And if the same outfit can do engraving, that would be cool. not quite
> sure if you could specify several processes (bend & cut sheet metal,
> paint and silkscreen for example) and have them all bid by one place.
> Worth looking into though.
>
> Tim (getting looser tolerances all the time) Servo
>
> --
> "Sire, the church of God is an anvil that has worn out many hammers."
> - H.L. Hastings
>