We have made lasts successfully using KIRA's paper laying technlogy machine
using A4 sized paper (very convenient for shoe sizes). As far as I know
there were no problems removing the excess paper and I can find the build
time if anyone is interested.
Neil Hopkinson
> -----Original Message-----
> From: owner-rp-ml@bart.lpt.fi [mailto:owner-rp-ml@bart.lpt.fi]On Behalf
> Of Justin Kidder
> Sent: 29 March 2000 01:25
> To: RP Worldwide
> Subject: RE: RP machine for manufacturing shoe lasts
>
>
> 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/
>
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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