Injection molds


#1

Hi there
I would love to print injection mold parts for low temp (<200°C) moldings.
Is there a resin which is precise and tough enough for that which works in the moai 200?
I only know the DWS SLA printer that can print these kind of parts
https://www.dwssystems.com/promo-dm500-en


#2

we have a community of users who are jewelers, they use a lot of castable/wax resins and they would be happy to help.
Join them here: Wax Resin Alternatives and Settings/Use for Jewelers


#3

hmm. Sorry my english is not so good. Maybe my explanation ist is really bad. We want to make these greenish parts:
(http://www.javelin-tech.com/blog/wp-content/uploads/2012/10/InjectionMould_3DPrinter_Javelin-5076.jpg)


#4

The Moai can print Waxcat resin like MakerJuice and castable resin like Funtodo
The reason i direct you to the jewelers community because they can offer a lot more information then we can


#5

here is the list for all resin type the Moai can print :https://docs.google.com/spreadsheets/d/1t8bjlfk7irSJFy3kzOr-I6SN5acE8UIlOl2E4r3dG_8/edit#gid=0


#6

@peopolysupport

we have Nex Hitemp resin that can handle up to 180C. would that work for you?


#7

HI,
I run both MOAI and DWS XFAB
MOAI is more detail in thinner areas.
XFAB is faster and 3 times more expencive to run ( 300 ml resin is 50 to 100 EUR)
As far XFAB is using locked to resin settings ( you just choose resin type and printer model ) and user have no control over laser power , speed and layer size, MOAI is way more flexible machine.
I do injection molding inserts for thermoplastics and it is working great with peopoly high temp so far


#8

i am really thankfull for your sharing :smiley:


#9

your photo is of a mold inserts made with objet multijet printer.
This was the add that started all the SLA printing research for me.
Started with xyz Nobel 1.0 A , but it is locked to XYZ resins and they do not have high temp.
On more thing for PP or PE and for 10-20 test shots , even the standard clear resin would wor.
For ABS you should go to High temp.
I did a successful test for over-molding of TPU over ABS with inserts made in clear on both MOAI and XFAB
and it works. TPU melting temp is in the range of 130 to 150 deg C


#10

thanks for sharing. So TPU works out for you?
The original design was for making vulcanized rubber mold with hitemp prints. But I am glad you found other uses:


#11

@Martin_Sirakov

PMMA also melts under 180C as well. maybe that is another choice


#12

So TPU is the right material in this case
We inject it over ABS base part