The story behind the #PIRANHACLAMP
- This topic has 54 replies, 12 voices, and was last updated 3 years ago by .
Hey!
I (@carlf from the Kunststoffschmiede) will share with you the process of how we got to our final mould. It took us nearly 9 months and a team of mainly 4 people.
Don’t even think that we were full time on this clamp, but be sure: Product development takes some time…
So here it is:
The way from an idea to a functioning mould.
@Kunststoffschmiede
can you share your nozzle photos? I’m trying to figure it out how to do it in the better way.
Thank you in advance.
Woaw @andyn ! This is a very clean work ! And this is not expensive
Will you sell the clamps ?
They are so nice !
When will we have them on the bazar ? @andyn @kunststoffschmiede
@kunststoffschmiede
any news ? otherwise i just do the thing from scratch and publish it here myself, with changes if needed.
@anyoneelse:
if you need a mold for this clamp, let me know, i will have the first ready next friday, bug me in here.
@adyn, I have just contacted them yesterday on Facebook. I am sure they are happy to share as much they can. The problem is rather that the guy who made the mold (external) has all the rights first, and so they are trying to contacting him right now. But I fully agree with the general direction of your question. I asked myself recently too: so now we have the machines but quite some people here don’t seem keen to share their molds or even the needed details for others to reproduce and get us actually going somewhere. That can have as said many reasons but at the end it’s quite sad ending for all of us.
however, i am more the guy who just does, ignoring and leaving all that copyright/patent crap aside and so I started a PP mold directory, stay tuned! I think I have something to share in the next 2 weeks (v-clip, piranha clip and some other things :-). I have to create first some more infrastructure: new forum, and some other goodies to make proper development in this mold/pp story because unfortunately the PP team is too slow to adapt to user needs here. lets see in Sept. for v4, i hope it’s addressing finally R&D
Are you actually happy to share the design for the clamp, or for people to copy your idea/produce it themselves? Precious Plastics is based on the open source model and most people here assume that other peoples designs are presented as free to use, even disagreeing with the idea of intellectual property and patents/copyright.
However you have obviously put a lot of time and money into designing and perfecting this and it’s understandable you might not want somebody else to take all the results of that and just use it for their own purposes, possibly making a profit from it or competing with you/ taking credit without acknowledging or even appreciating what’s gone into it.
So if you’d rather other people didn’t use your designs I think we ought to respect that, it doesn’t diminish in any what what you’ve achieved, and it’s still appropriate for you to post here to showcase what you’e created, I find the story behind the evolution of the design particularly interesting.
@kunststoffschmiede : same here, we’d like to have the CAD files, could you please put them in github repo, so everyone can find it ?
thanks
@kunststoffschmiede also does The Schicktanz GmbH serve customers in the US? I am probably going to start with a 3D printed mold but will want to eventually mill an aluminum version.
@davehakkens thanks!
@andyn i’ll try to upload a step file from the clamp itself.
that didn’t work. any suggestions how i can upload it in the forum.
furthermore i can send you the file via mail.
@mattia-io hehe thanks man!
ahhhh! copy&paste would be to easy;) i’ll send you an email!
there wil be a limited edition for the bazar, soon;-)
So you develop your own nozzle, for sure the shorter the nozzle the faster you reach it’s temperature, I agree with you that the threaded nozzle is not good, I will try some different setup of the nozzle.
Thank you very much.
@fabirihotmail-com
here it is. the most importand rules to design our nozzle are:
1. make sure you can heat it up nice and quickly
2. make sure you can fix the mould on a fast and save way,
we don’t use threads because it takes a long time to get the mould ready on the injection machine. that’s why we are using a car jack to press our moulds against our redesigned nozzle.
here are some pics:
@andyn You’re alright I don’t think it’s a good/intelligent idea 😉
Will you sell them locally ?
No draft angle, just straight sides and a small radius on the corners, but I think you’re right, the part will be much easier to extract with a draft angle, I’m going to try this on the next one, I’ll have to grind a special cutter.
If you have the injection point on the side and are using a car jack to hold it against the nozzle then you are probably getting most of the clamping force out of the jack rather than the toggle clamps. The car jack is a good method, I think more people should use it, but I think most still just thread the moulds on, it’s simple and secure but not as fast, and you really need to split the mould along the sprue line to get the solidified plastic out.
When I have perfected the mould I will put it on the Bazar. I’m not 100% happy with it yet, it still needs a few small tweaks to get it just right.
@sharma-sagar: please, scroll up a little, she made an attachment, and i made a post to a maintained github repo & external forum post
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