Re: RP machine for manufacturing shoe lasts

From: Ron Doyle (
Date: Wed Mar 29 2000 - 05:52:08 EEST

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 for information on the shoe industry and spray
metal tooling.

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

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