Print in multiple colours or materials on a hobbyist 3D printer
MakerBot Industries is set to launch a new dual-material extruder today, according to co-founder Bre Pettis.
Except for some experimental work, hobbyist 3D printing has traditionally been limited to a single extruder. That has meant printing in only one colour or material at a time. But with the launch of the MK7 extruder, users will be able to print with two colours or materials in a single object.
Why multiple materials? (more…)
Personal Factory projects from Steven MarshallSteve used to make quite a mess on his desk. A type of mess that one would expect from days to months of some creative puzzle making.
Now that he 3D prints his puzzles, Steve’s desk is a paragon of tidy. Well, not quite. There is still the manual cutting of the stickers that cover the puzzle’s faces. Not for much longer though. There are plans to have them machine cut to create a more refined product.
Steve designs and makes puzzles. So far he’s used his Personal Factory to 3D print his designs, and is currently designing a wood puzzle that will be laser cut. The 3D puzzles feature moving parts and require a strong material such as Durable Plastic to make sure that the object can withstand rigorous handling. Durable Plastic is gritty, so Steve spends some time playing with the puzzles to allow the material to sand itself down improving turning quality. He’s also 3D printed jewellery out of stainless steel and is looking at experimenting with coloured ceramic for a range of decorative objects.How would you describe your creative process? My creative process, like all of them, starts with an idea. When something pops into my head, I write it down somewhere, then later write it down in my binder of ideas.
This is when I categorize it (puzzles, decorative, jewelry, gadgets, etc) and draw out how it will work, along with describing it more in detail for myself. When I finally find money and time to make it, I sit down to design and perfect it on Autodesk Inventor.Have you been surprised by anything in the PF process: The ordering process surprised me, I very much like how it is laid out. It provides the customers with many options and allows for more communication between the buyer and the designer. It’s a perfect way to allow for customizable products, but also easily allows customers to buy the product as is.
Do you have any tips for other makers? Don’t get discouraged when your first models don’t work as expected. Learn from them! Manufacturing processes like this can take a few tries to get good at, and prototyping is still necessary even with practise!
You can see more of Steve’s designs and order the puzzles yourself at Stuff by Steve.
DIY printer uses felt pens and blotting paper
For the CNC drawing enthusiast who isn’t in a hurry to produce their next masterpiece, Paul Ferragut’s Time Print Machine offers a rather unique solution.
Images are created in the usual CNC manner, with dots forming a halftone pattern as the arm moves across the page. What is different about this device, is the incorporation of a special program which takes the grey value of a pixel and converts it using a time-based algorithm.
…the felt pen remains in contact with the blotting paper for relative periods of time. Consequently the ink will bleed through the paper creating a variety of different sized stains, gradually building the image.
Click through for a clip of the Time Print Machine in action. (more…)
Educational robotics kit for kids that will make grownups jealousJames M and five of his fellow students have spent the last few months developing an Educational Robotics Kit for kids aged 8 and up. This is their final year project in Engineering (Mechatronics and Robotics) and Computer Science, sponsored by the Australian hobbyist electronics supplier squarebit. The project’s aim is to create a kit that will feature “a suite of electronic sensors and actuators and a microcontroller centered around an Arduino based system, all programmable via a drag-and-drop computer interface.” The housings for these components are fabricated to work with an existing building block system that really doesn’t need to be named. Different configurations of these systemised components allow easy creation of all sorts of programmable devices, including robots and dataloggers.
When it came to fabricating the custom housing blocks, 3D printing was an obvious solution. Squarebit directed the students to Ponoko Personal Factory, which they considered to be the ideal service for hardware and prototyping. James’ team chose Durable Plastic to create parts that would integrate well with existing block systems. The plan worked, so their next step will be using dyes to colour the 3D printed blocks.
So far the parts can be configured to execute a range of functions. There’s basic line following, using down and out-facing sensors, where the custom sensor circuit boards measure the surrounding light levels. One of the blocks houses a temperature sensor and is aimed at school science experiments. This same housing is used with a different circuit board, showing that with careful planning, it is possible to use the same block for different features. The blocks are designed to fit a generic phone connector RJ12, which will let the children easily change sensor configurations without the hassle of small individual wires. James’ team is in the process of designing a microcontroller along with a housing for it, and a motor – more parts be fabricated with their Personal Factory.On demand fabrication has played a crucial role in this undertaking. James has had parts for other projects made professionally using conventional services, but found that the costs were higher, and the commercial high yield fabrication didn’t translate well to home hacking projects and prototyping.
More of James’ project under the cut:
The Laser Cutter Roundup — a weekly dose of laser-cut love: #36
Hey, Sam here. I’m back collecting this week’s posts from The Laser Cutter
Above is a work called Shadowscape from Mario Klingemann.
After the jump, another view of Shadowscape, a giant peach, a half finished tree, a light, a fox, and NLC Design #14… (more…)
University of Exeter develops first 3D chocolate printer!
Researchers at the University of Exeter in the UK must all have a sweet tooth as they’ve developed a working prototype 3D food printer. Instead of polymer, metal or ceramics this printer uses chocolate as an ink. Yum! Video after the jump…
Paper building blocks for your imagination
Grace Hawthorne is no stranger to fueling creativity and firing up the imagination. She may already be familiar to fans of ReadyMade, and thanks to her latest Kickstarter campaign, a whole new playful and creative juggernaut is about to be unleashed.
Paper Punk is a system of patterns that are supplied pre-cut from cool retro-futuristic printed stock, and after a few simple folds they become building blocks that can be used to create toys, art objects and more.
Each set comes with patterns in gorgeous complementary colours, posters and instructions, and a plethora of quirky stickers to add character and individuality to your constructions.
Consider Paper Punk as building blocks for your imagination…
it is a creativity tool that’s as much of and art form as it is a toy;
What I love most about Paper Punk is that it’s beautiful and fun!
Follow the link for a short clip where Grace runs us through what it’s all about. (more…)
Not long ago, one fine day or one dark night, depending on your time zone, the Octo Stool met Ponoko. They fell in love. Out of their hi-tech union came PonOcto.The PonOcto stool is hopefully the first in the new “Ponokofied” phase of Tom Kluyskens’ plywood furniture designs. Previously the New Zealand designer used more traditional CNC workshops to fabricate various plywood furniture and admits that his maximum yield layouts caused some friction between him and the fabricators.
At the mercy of NZ’s two degrees of separation, Tom kept coming across people from the Ponoko community, which got him more and more interested in digifabbing. At one stage he met Dave Ten Have and was a little star struck. Tom’s first project with Ponoko was a little lasercut felt container for candies that he sent out to people as a gift when his daughter was born. The container is based on a geometric shape that folds on itself to make a perfectly contained volume. Tom is now keen to write a customizer for it, so others can make their own using the Ponoko API.The CNC cutting service was something that Tom anticipated with much eagerness, and as soon as it was announced, he redesigned his established Octo stool to work with the Ponoko system. He couldn’t resist the name PonOcto, probably not even realising that the stool was to be Ponoko’s first CNC order. Bonus points for symbolism.
Making with Ponoko meant that Tom was able to apply innovative changes to some of his processes, such as combining lasercutting and CNC routing. Previously he used colour-laminated ply, or painted the cut pieces, but for the first PonOcto prototype he laminated feature ply surfaces with laser cut acrylic. Tom is incredibly enthusiastic about the possibilities presented by precise control over laminate finishing and is looking at incorporating selective lamination, hidden joinery detail, etc in his future designs.Tom’s furniture material of choice is clearly plywood, which he selected for its durability as well as availability of sustainably harvested options. His designs feature friction joints, so material stability is extremely important for precision cutting to ensure correct thicknesses and profiles. Before assembly, all the CNC cut pieces require sanding, which means that, for the time being at least, PonOcto stools cannot be shipped from the fabricator directly to the customer, as they have to be hand finished by the designer.
More from the designer after the jump:
You can make some sweet objects with Eurolite Poplar.Don’t let this cheap material fool you. It might invoke images of grubby, plywood clad construction site exteriors, but this economical plywood is very versatile.
Poplar is a cheap, low density material. It laser cuts quickly and is lightweight, so saves on cutting and shipping costs. This makes it wonderful for prototyping. The thick ply is also very structural! Like MDF, it’s easy to glue and paint with pretty much anything, so it lends itself well to model making.
See some fantastic examples and get free design files under the cut
Sewing friendly laser cutting you should try
When you think “laser cutting”, the product that most likely come to mind are rigid cut out shapes or 3D objects assembled from flat planes. However, laser cutting can work on a more tactile level, and there are materials available in the Ponoko/RazorLAB/Formulor/Vectorealism catalogues that enable a completely different kind of 3D making – sewing. I’m talking soft materials, such as various thicknesses of leather and felt. We have examples and free design files for each of these materials: russet leather camera case, felt shoulder bag, upholstery leather wallet
One of the great advantages of using these materials, is their fast cutting time. As usual, there are a few tricks when it comes to working with leather and felt, especially when you’re designing for sewing.
Here are a few points to consider:
- Thick material requires stronger & thicker thread, which means bigger stitch holes
- Thicker material can have longer stitch length
- Seam allowance: leather 2mm+, felt 5mm+
- Will you use overcast or straight stitching for the seams?
MYI projects under the cut: (more…)