Join GitHub today
GitHub is home to over 28 million developers working together to host and review code, manage projects, and build software together.Sign up
A Lesson 3D Printing: How to Design 3D Models for Printing ?
You can't get around it. 3d printing is hot. The Ultimaker, Makerbot, Leapfrog, Cyrus and ZYYX are just a few examples of 3d printers. All of them heat the material to a liquid medium, after which the appliance makes it with a spray head layer for the layer on the platform. The substance is then re-hardened to a sturdy three-dimensional object. However, how do you start?
3d printer is ideal for Rapid adaptive prototyping. An excellent way to try out new things quickly, relatively cheaply, without having to look at a complicated production process or large runs.
One of the first methods used to create 3d-printed objects is called stereolithography. This is from a liquid an object is created. A UV laser illuminates the liquid and makes it hard. Chuck Hull, the inventor of stereolithography, came to the market for the first time in 1983. A few years later in 1986, he introduced the first commercial 3d printer.
In the meantime, we have grown more than 28 years, and technology has evolved. The developments go fast and weekly, even faster, more accurate or cheaper variants and methods appear on the market. In addition to stereolithography, you still have fused deposition modeling, selective laser sintering, Zcorp, Multijet Modeling (molten wax) and Polyjet. Moreover, the palette of available materials is overgrowing. Meanwhile, we print nylon, wood, plastic, plastic, metal (gold, silver, bronze), sand, ceramics, and even human and animal tissue. In 2013, they made a Bionisch ear based on calf cells, and in 2014 they managed to print a blood vessel. The material with which you write depends on the printer. Usually the commercial printers like the Ultimaker or Makerbot standard ABS and PLA (both a plastic type).
All in all, the expectations are high. For the 3d printer, you don't need more than the raw materials and design. Moreover, those raw materials, which can go directly to the consumer. The distribution process of land, factory, shop, and the consumer is no more of the time.
The publishing industry made a similar transition. Where previously the first books, music, and movies were available on the web, it is now the 3d models that are on the rise. More and more ready-made models appear via platforms such as Thingiverse and Piratebay. In a few steps, you download product designs that you only have to print out yourself.
Although 3d printing has already experienced an excellent development, we are still at the beginning. Until recently, designing a 3d model was only for professionals. Programs like Autocad, 3DMax, and Blender are the most common to create 3d models, but advanced. Fortunately, there are increasingly more accessible alternatives on the market. Here are some examples of programs where you don't have to be a super technical talent:
A few Golden tips:
Consider what you want to make First, try something small and with less detail. The more different shapes, the more complicated it is to print. Contrary to what manufacturers want us to believe, 3d printing at the moment is not yet a Plug and play. You need a little bit to get through how it works. Do you have any patience? Start with an already existing design of for example Thingiverse.
Check if you need support structures Support structures are required when you want to print something that contains ' floating ' parts. If you write a loop, a support structure helps to ensure that this arc does not collapse during printing. The support structures can then be easily broken down after page. Not all software estimates whether you need these support structures. Cura, the software of the Ultimaker 2, does this.
3D Code - G-Code Commands
For each order, we will give a depiction of what the director does, determine what contentions might be required, and even provide a couple of test directions with the goal that you can perceive how it is regularly utilized.
G28 – Perform Homing Routine
G28-Homing-Sequence_smThis order advises the printer to run its homing succession, which will move the tool head to the furthest edges of the machine until the point when it contacts the end stops at these areas. The more significant part of your print records will start with this order, so the printer begins from a known area. This is additionally a valuable method to rapidly move one pivot off the beaten path, which might be helpful toward the finish of a print so you can expel your part.
If no claims are given, the machine will home each of the three tomahawks. You can likewise determine which correct axes you need to home by including an X, Y, or Z to the direction.
G28 ; home all axes (X, Y, and Z)
G28 X Y ; home X and Y axes
G28 Z ; home Z axis only
G90 ; use absolute positioning for the XYZ axes G1 X10 F3600 ; move to the X=10mm position on the bed G1 X20 F3600 ; move to X=20mm