9778Re: [PPLetterpress] Re: Material to make large printing blocks
- May 4 10:02 AMI can't believe all these printers using steamrollers! When did that
On May 4, 2008, at 9:20 AM, briannqueen wrote:
> Thank you for posting that video. Do you use the v-bit for all
> your cutting or do you start with end mills? Also what programs are
> you using? I have a friend that makes brass dies for foil printing
> and he uses ArtCAM. I've watched him program images and text a number
> of times and it seemed fairly simple. The cost of ArtCAM of course is
> a problem.
> I just acquired a piece of Corian after hearing from another
> artist that it prints well. Other than its cost it seems to be the
> perfect candidate since it's designed to be machinable. Here in North
> America it's only sold to authorized fabricators who don't normally
> sell it in sheet form. A laminate of 6mm Corian and MDF planed to
> type high could be the perfect match combined with CNC technology, no
> variation in qualities or grain to worry about. I see on Wikipedia
> that Corian has several competitors, who I'm guessing may be cheaper.
> I'm also experimenting with 3mm white styrene sheet laminated to MDF
> which is considerably less expensive.
> Keep us posted on your progress and thank you for the pictures and
> video, they have inspired me!
> --- In PPLetterpress@yahoogroups.com, "Erik Desmyter"
> <erik.desmyter@...> wrote:
> > I have also been experimenting with a CNC-router to make large size
> > or plates to print from on on my traditional iron handpresses. I
> can say
> > that this computer to plate technology has some potential &
> limitations and
> > there are many variables & tolerances in tools, software, material
> & machine
> > which make everything rather complex. The X, Y, Z axis feed speeds,
> > router speed, the flatness of the material (no bowing allowed), the
> angle &
> > sharpness of the routing bits and the 3-dimensional software
> working from 3D
> > vectors isn't easy in combination with the specifics of letterpress
> type &
> > inking.
> > I experimented with different materials and had the best results
> > expensive materials like Corian (acrylic stone) but working in wood
> is fun
> > but challenging as every kind of wood has different
> characteristics. Routing
> > speeds should be lower to avoid heating up or burning the wood but
> > a burr or damaged edges isn't always easy because high routing
> speeds just
> > give the best sharp edges. Similar story on the X, Y & Z speeds,
> when you go
> > too fast quality goes down and when you go to slow the wood gets
> dark and
> > starts to heat up. And making a large plate with slow speeds takes
> > I have just made a small movie and some photos on an experiment in
> > see links below.
> > For very large plates I guess a good quality MDF would be good but
> I haven't
> > tested this yet. I am always interested in experiences from other
> > working in this direction with CNC technology.
> > Best regards,
> > Erik Desmyter
> > Gent, Belgium
> > erik.desmyter@...
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