Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] 600 buck PCB mill/drill revisited

From: "Mike Young" <mikewhy@...>
Date: 2005-11-08

Yeah, it's a tough price point. Remember, he says he's working hard to hold
down the prices. If he can do it, unassembled, it would be great. I paid
that for rails and ballscrew for one axis alone, but it's a different class
of machine.

BTW, I think you're way heavy on the material and fab costs, except the
motors. $300 to cut and stamp 20 lbs of 12 gauge? I'll walk, Buddy. OTOH,
$50 won't buy the steppers and drives for one of the gas-pipe toys, and
really pushing the line on even a single 90 ipm axis.

$600 turn-key, unassembled, is just close enough to the line to be
believable. I'm rooting that he makes it. I have room and need for those
capabilities.

----- Original Message -----
From: "mikezcnc" <eemikez@...>
> Having said that, instead of describing a pattern of behavior, I am
> asking a question, can a machine, like Fred listed, be built for $600
> with stepper motors and a controller? I am not sure if ballendo
> offered to add a Dremel but probbaly not so let's assume that a Dremel
> tool is on top of the $600, ie, the PCB drilelr becomes a $700
> machine.
>
> The answer is:
> 1. Sheetmetal (material, laser cutting and bending): $300
> 2. Leadscrews $100
> 3. Motors (they will be direct coupled): $50
> 4. adapters, screws, bolts, nuts: $20
> 5. Machine has to glide on something, Fred's is gliding on slides and
> they are not cheap, so: 150
> 6. Machining, drilling: one hour=$60
> 7. Packaging: $30
> 8. Controller: $100
> 9. Power supply (maybe he didn't include one) $40. By the way, www.mfj
> is out of them until Nov 30)
>
> Total: $850 Of course, there is no profit in it (and no spindle either)
> and I do not expect a product without a profit. Now, let's talk about
> Fred's machine for a sec: servos $100x3, controller $600=$1000
> Do you see that Fred's machine costs $1000, motors and controller are
> another $1000 and software included is free? And he also gave you a
> free spindle.
>
> Question is how long can Fred advertise that machine before increasing
> the prise...
>
> Feel free to correct my numbers.
>
> Mike
>
> as usual, there is a cheaper alternative: www.kleinbauer.com :)
>
>
>
>
>
>
>
> Be sure to visit the group home and check for new Links, Files, and
> Photos:
> http://groups.yahoo.com/group/Homebrew_PCBs
>
> If Files or Photos are running short of space, post them here:
> http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
> Yahoo! Groups Links
>
>
>
>
>
>