I've seen work done for shoe lasts using CNC milling...take a look at
http://www.digilast.com/ I'm not sure of the time requirements, but it
seems like it would be faster than 38 hours...
> -----Original Message-----
> From: owner-rp-ml@bart.lpt.fi [mailto:owner-rp-ml@bart.lpt.fi]On Behalf
> Of Ron Doyle
> Sent: Tuesday, March 28, 2000 9:52 PM
> To: Marcello Traversi; RP Worldwide
> Subject: Re: RP machine for manufacturing shoe lasts
>
>
> We in Canada made the lasts and the boot models using the Helisys LOM
> technology. The laminated surface was great and very smooth. You
> can make 90% of
> your shoe models overnight. We did a toddler's high boot model
> and it took 35
> hours to build and 3 hours decubing and a spray coating with
> sealer. We have
> made 2 boots and 4 lasts on the same build that was built over a
> weekend. This
> is a great and cost effective technology for the shoe industry.
>
> Please contact www.helisys.com for information on the shoe
> industry and spray
> metal tooling.
> Ciao.
>
> Marcello Traversi wrote:
>
> > ------ this is a Technology Request ------
> >
> > Title
> > Rapid prototyping for shoe last realisation
> >
> > Abstract
> > The rapid prototyping machine is to realise a last designed on
> a last CAD.
> > The last company uses the machine to quickly produce a physical
> model for
> > the customer.
> > A shoe company having a last CAD can realise in own home the last in all
> > secrecy.
> > A shoe company can produce the last model received by email from last
> > company in a very short time.
> > Benefits: shortening of the last model production times;
> reduction of last
> > production process costs; increasing of secretiveness.
> >
> > Description
> > The action is part of a project aimed to develop a shoe last
> codesign system
> > between the last company and the shoe company. The design
> system is based on
> > CAD, but the shoe company want to have also the physical model. To avoid
> > times and costs related to the last model forwarding from the
> last company
> > to the shoe company, we want to introduce a rapid prototyping
> system. The
> > system will be able to realise the last near the shoe company.
> Now there are
> > machines (for example from New Last) able to produce a last
> model in less
> > than thirty minutes, but these systems are expensive (about
> 100.000 Euro)
> > and, to realise the prototype, they adopt the method used by the last
> > production machines. The adoption of real rapid prototyping
> system allows to
> > the shoe company to produce not only lasts but also heels.
> > The project needs a rapid prototyping machine complies with the
> following
> > requirements:
> > - last production time < 30 minutes
> > - cost < 50000 Euro
> > - accuracy > 0,1 mm
> >
> > The machine will be useful also for the last company, to quickly realise
> > lasts.
> >
> > To increase the usefulness, the last company requires that the
> machine uses
> > a material allowing manual changes. In this way the last
> designer is able to
> > modify the last in front of the customer (as now with the wood model),
> > without to make the change on CAD and waiting for the next prototyping.
> >
> > The system is useful to define the last model and to produce a
> first shoe
> > model.
> > If there wasn't manual modification on the physical last, the
> CAD last model
> > used for the prototyping will be used to produce the last model
> with all the
> > requirements (articulations and so on) needed to realise the real shoe
> > model.
> >
> > _________________________________________________
> >
> > This technology request is involved in a project aimed to develop a shoe
> > last co-design system.
> > _________________________________________________
> >
> > Marcello Traversi
> > Agenzia per l'Alta Tecnologia CESVIT SpA
> >
> > For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
>
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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