Reprap Forum - Casting and Moldmaking Working Group Casting -> http://objects.reprap.org/wiki/Casting Moldmaking -> http://objects.reprap.org/wiki/Molds https://reprap.org/forum/list.php?148 Mon, 08 Jun 2026 10:49:11 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?148,875792,875792#msg-875792 Printing with wax Filament (2 replies) https://reprap.org/forum/read.php?148,875792,875792#msg-875792 zurferjoe Casting and Moldmaking Working Group Fri, 28 Aug 2020 13:26:39 -0400 https://reprap.org/forum/read.php?148,863061,863061#msg-863061 3D-printed plastic inserts for injection mouldung (4 replies) https://reprap.org/forum/read.php?148,863061,863061#msg-863061
[attachment 113494 SpritzguinKunststoff-Formeinsatz.jpg] [attachment 113495 SpritzguinKunststoff-Formeinsatz3.jpg]]]> VDX Casting and Moldmaking Working Group Sun, 08 Dec 2019 02:27:34 -0500 https://reprap.org/forum/read.php?148,858054,858057#msg-858057 Re: The working principle and mode of vacuum packaging machine (-1 replies) https://reprap.org/forum/read.php?148,858054,858057#msg-858057
Welcome to bankruptcy, You deserve it.]]> Dust Casting and Moldmaking Working Group Wed, 31 Dec 1969 19:00:00 -0500 https://reprap.org/forum/read.php?148,855815,855815#msg-855815 helmet liner mold help wanted (no replies) https://reprap.org/forum/read.php?148,855815,855815#msg-855815
First post... pretty excited on how this will pan out... :)

I'm in the process of restoring flight helmets.
Lots of them have two piece hardfoam liners. The liners are typically made in molds.
Two pieces make one liner to go in the helmet shell. The material is expanding two component foam
that hardens inside the mold. Afterwards the pair is trimmed and covered with leather for wearing comfort.

I have an original liner consisting of two pieces so I can send it to the mold maker.
Because I lack the knowledge and handyness to make a mold myself... it is my quest to find a skilled person to make a mold so I can repeat making liners.
It goes without saying I'll pay for the fabrication of the mold plus shipping.


An illustraton is attached.

Many thanks for your answers
Best regards! (tu)]]> JS23 Casting and Moldmaking Working Group Mon, 01 Jul 2019 12:47:56 -0400 https://reprap.org/forum/read.php?148,849420,849420#msg-849420 Universal moldes (no replies) https://reprap.org/forum/read.php?148,849420,849420#msg-849420 Craftingismypassion Casting and Moldmaking Working Group Sun, 17 Mar 2019 19:15:03 -0400 https://reprap.org/forum/read.php?148,842244,842244#msg-842244 I`m new and need small help (no replies) https://reprap.org/forum/read.php?148,842244,842244#msg-842244 Hello All

I wish a good day for you all ^__^


i`m new on all this things silicone and molds

i read too much about the thing i want and can`t find the answer


it just about how i make the concave shape that the one stick on wall

for example if i have a cylinder shape


and i poured the silicone on it

is it will give the concave shape after cure??

or must i heat the silicone then pour to mold??

is there a different if i poured the silicone on the mold

90%
OR
100%

(not full mold 90% OR full mold with silicone 100%)
i mean by a different
90%=give concave shape
100%=not give concave shape

Thanks]]> miami911 Casting and Moldmaking Working Group Sun, 23 Dec 2018 18:00:15 -0500 https://reprap.org/forum/read.php?148,826477,826477#msg-826477 3D printing thermoforming molds (no replies) https://reprap.org/forum/read.php?148,826477,826477#msg-826477 AirFlow Casting and Moldmaking Working Group Fri, 22 Jun 2018 10:20:32 -0400 https://reprap.org/forum/read.php?148,805616,805616#msg-805616 Hollow casting help (3 replies) https://reprap.org/forum/read.php?148,805616,805616#msg-805616 I need to make a silicon model of baby stomach(it's a training model for pediatric surgery) , How can i make it hollow since it is a complex shape not an easy one.
I made a hollow tube before but the shape is very complex to be a hollow.
i made it by making 2 part mold by 3D printer then printing the inner tube then cast silicone on it.]]> mogey336 Casting and Moldmaking Working Group Wed, 17 Jan 2018 19:20:55 -0500 https://reprap.org/forum/read.php?148,716382,716382#msg-716382 Hardcore infill - 3D printing the outside of an object and pouring concrete into it. (3 replies) https://reprap.org/forum/read.php?148,716382,716382#msg-716382
If you use ABS as the skinning and support material (for ABS reinforced concrete) you can cure the object very quickly in a kitchen steamer, and repair the infill with fresh ABS and smooth with acetone.

Whaddya y'all thinking?]]> DragonFire Casting and Moldmaking Working Group Fri, 28 Oct 2016 07:56:16 -0400 https://reprap.org/forum/read.php?148,715100,715100#msg-715100 3d Printing a mold? (7 replies) https://reprap.org/forum/read.php?148,715100,715100#msg-715100
Can I scan the item. 3d print it using some sort of filament and then send it off to the foundry? I though this forum section was for just that but I seem to reading posts about injection molding rather then moldmaking.]]> audiobull Casting and Moldmaking Working Group Thu, 06 Aug 2020 09:16:57 -0400 https://reprap.org/forum/read.php?148,654888,654888#msg-654888 Rotocasting multiple castings as once (no replies) https://reprap.org/forum/read.php?148,654888,654888#msg-654888
I'm building a rotocaster and want to run multiple castings from multiple molds at once...maybe 3 at a time. It's also called "gang molding".

Has anyone done this? I need to get info but I'm finding that there's not much out there.

If I can bang out double digits a day I might have the genesis of a business...

Thanks!]]> dmenegon Casting and Moldmaking Working Group Wed, 20 Apr 2016 21:32:50 -0400 https://reprap.org/forum/read.php?148,632970,632970#msg-632970 Gel coat vs silicone mold (1 reply) https://reprap.org/forum/read.php?148,632970,632970#msg-632970
thanks]]> maceliz Casting and Moldmaking Working Group Sun, 17 Jul 2016 08:58:10 -0400 https://reprap.org/forum/read.php?148,608460,608460#msg-608460 Metal Casting – 3D Printed ABS Molds to Be Eliminate With Acetone (no replies) https://reprap.org/forum/read.php?148,608460,608460#msg-608460 I did some testing about how to create metallic parts with a domestic 3D printer in an easy, fast and simple way and this is the better way I have found so far (you can find more info in mi blog and alternative methods). I have created an instructable so everyone can see the process.

Instructables -> Metal Casting – 3D Printed ABS Molds to Be Eliminate With Acetone

I post some images so you can see the result:



More Info in my post.
]]> frax3d Casting and Moldmaking Working Group Tue, 12 Jan 2016 06:08:21 -0500 https://reprap.org/forum/read.php?148,548602,548602#msg-548602 Printed ABS Mold and The Silicone Product... (no replies) https://reprap.org/forum/read.php?148,548602,548602#msg-548602 shafri Casting and Moldmaking Working Group Sat, 22 Aug 2015 12:28:56 -0400 https://reprap.org/forum/read.php?148,527180,527180#msg-527180 Does anyone cast chocolate? (1 reply) https://reprap.org/forum/read.php?148,527180,527180#msg-527180
Which material is the best for mold?
Should I just pour molten chocolate or make a pump & heating mechanism?]]> Gurcan Casting and Moldmaking Working Group Mon, 29 Jun 2015 15:19:03 -0400 https://reprap.org/forum/read.php?148,498105,498105#msg-498105 Sand Made foundry sand Laser Sintering (2 replies) https://reprap.org/forum/read.php?148,498105,498105#msg-498105
We are working on Laser Sintering machine. We are working on variety on materials and the latest one is foundry sand.

This are our latest prints:


What do you think?
]]> PolishSLS Casting and Moldmaking Working Group Wed, 24 Jun 2015 05:51:52 -0400 https://reprap.org/forum/read.php?148,493139,493139#msg-493139 AMP hand injection moulder (no replies) https://reprap.org/forum/read.php?148,493139,493139#msg-493139
Am based in UK and am in urgent need of an AMP hand injection moulder
if anyone could please contact me on my email address
or
message me on this page

Smurf]]> recycledhippy Casting and Moldmaking Working Group Sun, 05 Apr 2015 13:06:04 -0400 https://reprap.org/forum/read.php?148,459771,459771#msg-459771 How on earth do I move from 3D printing to Injection Moulding? (4 replies) https://reprap.org/forum/read.php?148,459771,459771#msg-459771 It did, and its starting to get out of control, and its all kinda exciting because I think I might just get rich if I play my cards right...
Now, to expand, I either buy an army of 3d printers, or consider moving to Injection Moulding.

I've done a little research on YouTube, google, and subsequently the fourms on Injection Moulding, but theres not a lot of small-time stuff.
My part is roughly 182x70x60mm, and is fairly "complex"... I've run it through Solidworks, and 5 of my "features" requires core parts since drafting would kill the feature.
The problem is to solve the problem of 5-6 hour prints... Even if it took a full 10 mins to make the part with Injection Moulding, then I'm making a big saving...

All the "desktop" or "Benchtop" Injection Moulding Machines are too small, weather with the amount of plastic it's capable of injecting is too low, or physically wouldn't fit the tool.

So, I'm looking for someone to tell me where to start in my studies...
I'm looking for, "what should I be looking for".... if that makes sense?

This could be a big business starter for me, and I'm dead excited, and will appreciate all positive pointers in the right direction.

Thanks]]> dailafing Casting and Moldmaking Working Group Tue, 03 May 2016 20:38:46 -0400 https://reprap.org/forum/read.php?148,459405,459405#msg-459405 Castable resin test prints (5 replies) https://reprap.org/forum/read.php?148,459405,459405#msg-459405
I want to get a 3d printer to be able to print jewelry models that i can direct cast.
I have been researching for the past 2 weeks and I can't get any test prints from any of the companies that i have contacted.

So far i have VenusCreator Castable Resin, Made Solid Firecast, 3d materials 3dm cast resin.

I don't understand, do they not want my money or are their products just that bad?

Does anyone have experience with these resins on a dlp printer like the b9 or miicraft or similar? I am looking for a wax equivalent or something similar to the shapeways resin.


Regards,

-A]]> astapov Casting and Moldmaking Working Group Wed, 25 May 2016 03:40:43 -0400 https://reprap.org/forum/read.php?148,447235,447235#msg-447235 Dedicated casting/moldmaking Marketplace? (no replies) https://reprap.org/forum/read.php?148,447235,447235#msg-447235 We are a group of engineers... It seems like there's enough other folk here that you can use a casting and moldmaking marketplace to find reliable manufacturers.
You can maybe do your designed machine by submitting technical drawings and specification.
You can find manufacturers and part makers from laser cut,plastic injection,iron casting,machining,steel forging etc.
Here is the web site [www.lccsuppliers.com]

Thanks. Regards]]> Jemjem Casting and Moldmaking Working Group Wed, 24 Dec 2014 05:49:57 -0500 https://reprap.org/forum/read.php?148,432282,432282#msg-432282 printing a mold cavity to make lost foam casting forms, or waxes (2 replies) https://reprap.org/forum/read.php?148,432282,432282#msg-432282
or for making waxs to use in lost wax castings

thanks for your ideas or direction]]> trackVW Casting and Moldmaking Working Group Fri, 14 Nov 2014 21:56:08 -0500 https://reprap.org/forum/read.php?148,430063,430063#msg-430063 molds for hollow objects? (1 reply) https://reprap.org/forum/read.php?148,430063,430063#msg-430063 I've seen examples of making metal objects from 3d printed plastic ones, by either printing a plastic mold and using a metal alloy with lower melting temperature than ABS or the "lost ABS/PLA casting" method by using sand molds.
But in either case the resulting metal object is not hollow, and for slightly large objects it gets too heavy and expensive.
Is there any technique for for making hollow metal objects from molds/plastic prints without very expensive professional equipment?]]> jaques Casting and Moldmaking Working Group Mon, 16 Mar 2015 21:22:45 -0400 https://reprap.org/forum/read.php?148,395844,395844#msg-395844 Rotocasting motor controls (1 reply) https://reprap.org/forum/read.php?148,395844,395844#msg-395844 simspeed Casting and Moldmaking Working Group Tue, 19 Apr 2016 22:57:00 -0400 https://reprap.org/forum/read.php?148,386829,386829#msg-386829 induction furnace resistor (1 reply) https://reprap.org/forum/read.php?148,386829,386829#msg-386829 jirishno1 Casting and Moldmaking Working Group Wed, 23 Jul 2014 15:00:38 -0400 https://reprap.org/forum/read.php?148,361635,361635#msg-361635 Mould for a glass art project (3 replies) https://reprap.org/forum/read.php?148,361635,361635#msg-361635 [attachment 33740 20140528_153933.png]
I shall post more pictures as I progress with the idea.

EDIT: A bit of shameless promotion; if you're interested you can see the types of work my landlady does on her website [jeannettetherrien.com]]]> samp20 Casting and Moldmaking Working Group Wed, 28 May 2014 16:49:46 -0400 https://reprap.org/forum/read.php?148,321038,321038#msg-321038 An Introduction to new member (1 reply) https://reprap.org/forum/read.php?148,321038,321038#msg-321038
This is Doyle Clinton, a new guy to the forum.I am also a newbie here. Very excited to interact with all of view. Looking forward to share my craft ideas and learn something new from you'll too.

Best regards
Doyle Clinton]]> Anonymous User Casting and Moldmaking Working Group Mon, 10 Mar 2014 10:23:38 -0400 https://reprap.org/forum/read.php?148,302456,302456#msg-302456 [GUIDE] Creating Waste Molds On The Cheap & Wax Transfer Techniques (no replies) https://reprap.org/forum/read.php?148,302456,302456#msg-302456
[www.statueforum.com]]]> MeoWorks Casting and Moldmaking Working Group Tue, 28 Jan 2014 11:33:13 -0500 https://reprap.org/forum/read.php?148,301812,301812#msg-301812 High heat paint? (1 reply) https://reprap.org/forum/read.php?148,301812,301812#msg-301812 this high heat spray paint for lining a 3D printed mold?

I want to print a mold for a part that will eventually get injection molded, but the plastic I want to make the part out of has a mold temp of ~450 C. Would it be possible to print the mold, line the interior with the high heat paint, then pour the mold with molten plastic?]]> gmh39 Casting and Moldmaking Working Group Wed, 29 Jan 2014 10:43:54 -0500 https://reprap.org/forum/read.php?148,238311,238311#msg-238311 Delta Printer 3D/CNC Big Brother Spectrum (no replies) https://reprap.org/forum/read.php?148,238311,238311#msg-238311
My name is Saulo Quevedo,'m finder, live in Carmo da Cachoeira, Minas Gerais, Brazil and I'm finalizing the draft Printer Delta 3D/CNC whose name is Big Brother Spectrum. See link and more pictures:
[igg.me]
[sdrv.ms]
I like the TV show that is very popular in my country
(Big Brother) and refers to the big brother United States and its major contribution to the advancement of all peoples. So I gave this name to my first printer: Big Brother Spectrum.
This printer Delta 3D/CNC whose project I'm finishing arose from the need to make my own future plastic parts in 3D large sizes (maximum print area: 1000 x 1000 x 1500 mm.). The Delta system (three drive motors) is more reliable, economical and efficient compared to other systems RepRap and the use of special Spindles and Nuts (for auto torque and speed too) much improve the quality of 3D printing and CNC and also possibility of change of application for different working modes for this printer, either for making 3D parts or performing other jobs in CNC.
The easy use of sets of spindles 3D/CNC this printer instead of the common use of the drive belt and pulley system provides greater functionality and much higher quality printing, 3D printing is (zones 2.5 mm, 3.5 mm.) or CNC (screws 4.5 mm, 5.5 mm for Plasma, Laser, Router, manufacture of printed circuit boards, etc ...)
Simply just change the set of zones corresponding step as you work it wants to accomplish.
The exchange zones is quick and with a few adjustments in the printer system can already be used for another purpose, specific to that set of zones that will be used.
Few components, self replicating (including manufacturing of parts to be used in her or others), almost any printer can be manufactured in ABS plastic or Polyacetal (screws, nuts, pulleys and rails of motion) and its final cost will not be very high when compared to the cost of other RepRap 3D printers that are out there, for what could endears it and I have sought to eliminate, was the self cost of ball screws, but using plastic or ABS type Polyacetal (compared to steel) the cost will purportedly enable smaller and finally it has a printer 3D/CNC large size, high print quality and efficiency, whether for private or business use.
Will use the mechanism of four pulleys with special self-lubricating bearings for perfect fit and no slack in spindles, nuts and special high torque to the drive assembly (triune) three arms to move Tray Central, where you can be fixed type tool you will use for each type of job that the printer can perform. In due course, I believe in using a system with ultraviolet light with photosensitive resins powder to print jobs in 3D but I'm still researching and trying to find the best solution. Meanwhile 3D printing can be made with threads of 1,5 and 3,0 millimeters from ABS, no problems. Accepted donations and all money raised will be used for installation in a suitable shed and buying all the stuff that she will need (most of the parts will be ordered only once, since I can replicate them when the printer is already ready).
I hope you enjoyed and thank you for your cooperation, see below links to other inventions created, some projects are still in the process of refinement and finish once this project is completed my first printer Delta 3D/CNC because almost all projects below need to be made to the cutting of copper and other materials and construction of plastic large size.

1 - Dyno Spectrum: Moto four and three wheels: There will be almost all plastic (ABS and others) with degree of inclination of 56.5 degrees and up to 40 degrees of steering, electric motor system with five-speed electronic and also differential (electronic system for four wheels), high-tech!

[sdrv.ms]

2 - Motors Brushlees High Efficiency, Power and low cost for special applications in motorcycles, tricycles and cars, a new technology.

2.1 - Electric Motor Brushlees 125 HP, 24 Volts. with Differential Rates and electronics, high technology and efficiency, check out the links:

[igg.me]

[sdrv.ms]

2.2 - engine specially developed for general applications: Electra Tuingo_360 but it applies perfectly for use in Aeromodelismo. see the link:

[sdrv.ms]

3 - Hidrocooler for Intel and AMD microprocessors. greater efficiency in cooling the PC.

[sdrv.ms]

4 - Forest Donkeys in modules (1.2 Mts Width) with signage night.

Mounted on top of concrete blocks stackable for easy and safe installation. It can be mounted side by side two or more mats size that is more convenient in length or width. The assembly modules also apply to build bridges of small size or medium-size (larger bridges may be made under special design) to check link:

[sdrv.ms]

5 - Bearings Ellipticals: with higher load capacity for the same size bearings that are already industry standard, supports large loads tilted up to 60 degrees of tilt. see the link:

[sdrv.ms]

6 - Neutral Zone: New pool game, much more fun. Fully released for private or business use.

[sdrv.ms]

Previous projects: Two front wheels to fit in all types of bikes. Maximum engine capacity: 650 cc.

[sdrv.ms]

Email: InovaStar@hotmail.com

Congratulations to all.

Saulo Quevedo, Inventor.

InovaStar Projects and Technology Solutions.

CNPJ: 13723959000105

Site of the future headquarters InovaStar Technologies
(Near the city of Brasilia, capital of Brazil.)

[sdrv.ms]]]> Saulo Quevedo Casting and Moldmaking Working Group Wed, 21 Aug 2013 16:39:47 -0400 https://reprap.org/forum/read.php?148,206160,206160#msg-206160 Lost PLA Metal Casting Documentary (4 replies) https://reprap.org/forum/read.php?148,206160,206160#msg-206160
[www.thingiverse.com]

Please let me know if you have any questions!]]> Anonymous User Casting and Moldmaking Working Group Mon, 12 Jan 2015 00:05:25 -0500