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Laser and cnc parts for moulds

This topic contains 3 replies, has 4 voices, and was last updated by  NowProject 2 hours ago.

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Rūdolfs rudolfsskuja

Laser and cnc parts for moulds

09/11/2018 at 10:56

Dear Machine builders, engineers and product designers,
I’m proposing to make an archive of the experimental and working mould parts as files (that can be used to make the parts)
This problem has bothered our team, making good quality moulds.
I would like YOU to share your knowladge and experience making moulds.
Share your ideas and suggestions!
(I share my experience making compression machine moulds -coasters. If the moulds need to be good quality, then the materials sould be good quality too?)
@andyn @davehakkens @jegor-m

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starter
23/11/2018 at 13:48
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Hi, actually we are looking for Mould-CNC Files!
Would be great if there would be a site (something like thingiverse, github, …).
Where are you in the developing of this archive? What would you need for developing this?

starter
23/01/2019 at 20:17
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Moulds are hard to come across by, indeed. Most moulds end up a huge investment, and you’ll only recuperate the investment if there is a market for whatever the mould makes.

starter
23/01/2019 at 22:06
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There are few other recent topics about alternative mold materials around (epoxy, wood, ceramic), please search the forum too.

On the other hand I wouldn’t be too much scared to get a CNC, you can build a quit decent one for 2-3K (another 1K over time for tooling). I’d say, if you made your way through plastic you will make your way through aluminium also 🙂

The limits of a low-budget CNC are mainly deep cuts ( > 10 cm) and surface finish which is yet not that a big deal because often you can’t even fill plastic that size with the PP machines and you can polish molds up your self and even if, there are workarounds like stacking slices. I can compile a playlist of decent DIY builds if you like… possibly there are also ready to use machines on the second market.

Looking at the math it’s also pretty simple! A relative simple mold is around 800 Euro, more likely not even tested against your machines nor do they have all the mechanics needed for a production (release plate, etc..), ending up sometimes in ordering another mold. Then you’ve just one project done. To make things viable, you will gonna repeat again. The sunglass maker (well, more workshop stuff than production) in Barcelona paid 2-3 K for their mold.

It’s not just about molds btw. Having a CNC at hand (tool wise) is an absolute must when things get serious. Or how else you wanna build quickly some semi-automatic injection system or whatever is needed (ie: https://www.youtube.com/watch?v=zTjbs3Hg2PA) ? I am using mine daily for all sort of things, marking hole patterns, finishing badly grinded edges, some new bearing mounts, heck, it’s became my right hand … mostly controlled by a stupid xbox-controller and some manual GCODE only.

as ignorant it sounds, please just get over it, do your self a favor and just get one 😉

most of the cases this will be enough : https://www.youtube.com/watch?v=K9UA9ZRFwWU

c

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