Re: [CAD_CAM_EDM_DRO] Re: Routing speed?

Thanks Dave, your advice is appreciated, I figure the 269 motors was
overkill. I'm thinking(since I'm learning here) I'd start out learning how
to do circuit board and then, maybe, move on to bigger things. The machine
is too an overkill for circuit boards.
thanks
bill

----- Original Message -----
From: "turbulatordude" <dave_mucha@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, August 11, 2006 3:17 PM
Subject: [CAD_CAM_EDM_DRO] Re: Routing speed?


> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "wdavis364" <wdavis@...> wrote:
>>
>> Building a Mill.
>> Shopping around for lead screws.
>> What would be the ideal routing speed for cuting out circuit boards.
>> The motor I have run verily smooth at at or over 200 rpms 1/8 step. At
>> 5 tpi would put me at 40 inches per minutes. Is this too fast, too slow?
>> I have no idea as to what speed to look for.
>> Most of the lead screws I see for sale is at 5 or 6 tpi.
>> I want to drive the lead screw direct with 269oz stepper motors.
>> Sure need some advice on this before shelling out the bucks here.
>> thanks
>> bill
>
> Hi Bill,
>
> If all you are doing is circuit boards, then 269 oz-in is WAY overkill.
>
> I have 35 oz-in on mine and it never bogs.
>
> I think the spindle is 35,000 RPM and it routes the board at 20 ipm.
> It etches the traces at about 8-12 ipm.
>
> Best to start at one speed and ramp up until you hear something
> complain. Then cut to about 80% of that speed. The cutting breaking
> would not really be a complaint as it is more of irreconcilable
> differences.
>
> Dave
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