Re: Much (nice) talk about the Z-stuff, BUT ......

Date: Fri Jan 14 2000 - 12:39:09 EET

2000/01/14 17:37:36$B!"(B"Jorn Berends"$B$5$s$O!V(BMuch (nice) talk about the
Z-stuff, BUT ......$B!W$G=q$-$^$7$?(B
> Much talk about the Z-stuff, interesting also, but ....
> I was told that a maximum of 50% 'used-powder' can be mixed to new powder
in order to get a reasonable quality product. When you have to build a
small part of let's say 1x1x1", a lot of powder is

It's seems good over 50 %.

I heard that DTM RapidSteel is 100% re-use, but Duraform is very little.
These difference seems to be the temperature difference of material
and the reversible action or unidirectional fusible action

> spread needless in the part-volumebox. For as a general product volume
will never exceed a volume of let's say more than 25% of the total
buildbox-volume of the Z-machine, a lot of material will be
> lost, or not be re-useable. Ain't this a big disadvantage of this system.
The Z-machine is supposed to make 3d-parts cost-efficient (cheap in other
words). For building such a small part the
> materialcost of the lost powder weighs heavy on the part-price.

usually, parts and surrounding's ratio is most important to make buildings.
and also parts geometry, i.e. axial ratio.
> Am I wrong (?), or are there other methods used to save build-materials?
(what does the material cost?) To build price-effective parts, we bought a
Genisys machine some time ago; I think that this
> material-item is a big advantage of this G-FDM system. (But I have an
open mind for someone who can convince me that I'm wrong!)
> Concerning speed, I have never had a customer who had a problem with a
deliverytime of 24 hours, so speed is a minor aspect (or are you going out
of your bed three times a night to take out parts and
> restart the machine) ....
> Thank your future reply on above, kind regards,
> Jorn Berends
> JB Ventures BV
> Bedrijvenpark Twente 165c
> NL - 7602 KE Almelo (the Netherlands)
> - att1.htm

Best regards,

Imamura( shadow of RPJP)

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