HP plotters

From: Philip.Belben_at_powertech.co.uk <(Philip.Belben_at_powertech.co.uk)>
Date: Fri Sep 3 07:23:55 1999

>>>I had one fellow describe to me how he rigged his pen in the 7475 so he
>>>could draw his PCB layouts directly on the copper. That certainly wouldn't
>>>work with my inkjet printer!
>>
>> I've heard that there are knifes available that can be used in them to
>>cut strip lines on copper PCB and knifes for cutting out vinyl and other
>>materials but I don't know what they cost or where you can get them. Does
>>anyone know any more about them?
>>
>> Joe
>
> Gerber, I think, used to have a system using a tiny router (like a drill
> bit, except designed to cut sideways) to cut out circuit traces for board
> prototyping.
>
> Roland packaged a system with a plotter and swiveling exacto knife "pen"
> that most sign shops used to cut letters for banners etc.

I think Mike has hit the nail on the head here. Unlike a pen, a knife only
works in one direction. The "pen" of a cutting plotter MUST swivel for it to
work - and giving it some degree of caster to swivel itself loses accuracy
really fast.

I like the idea of a router in the pen part of a plotter - but it's a lot of
mass for the pen carriage to move around!

Philip.





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Received on Fri Sep 03 1999 - 07:23:55 BST

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