On Saturday Nov.23 2013, Javelin attended the Ontario Professional Engineers Awards Gala (OPEA) held at the Toronto Congress Centre (http://www.ospe.on.ca/events/event_details.asp?id=357660). We realized that we needed something that would attract attention to our area where we would be displaying various 3D printed samples. After some thought, it was decided that we would create a 3D Printed Iron Man bust and paint it to look like the real deal. We managed to get essentially a surface model of the bust but it needed a bunch of work to make it something that could be printed. Thankfully, our co-worker Scott was up to the task and spent a few hours fixing up the model. Here it is:
The Sunday before the official start of the SolidWorks World was actually a very busy day. The registration booths opened at 7 am and people were already lining up to get their badges, agendas, back packs and T-Shirts.
Most of the users attended the CAD Managers’ Boot Camp for exploring a wide range of topics and issues, enabling them to effectively deploy and manage SolidWorks in order to reduce the total cost of ownership and maximize their company’s investment in the software. A lot of people took advantage of the complimentary SolidWorks Certification Exams also.
In my case, I was involved in workshops dedicated to delivering quality SolidWorks Training. One of the best news I can share with you is the availability of the new training manuals in the electronic format. When you come to our training class next time, you will get both the physical book and the option to load it on your tablet or your computer.
The Partner Pavilion opened in the afternoon. Even though I spent 3 hours visiting various booths, I barely covered one third of them all! The explanation is simple: the products are extremely interesting and the exhibitors are very well prepared and eager to demonstrate the capabilities of their products. I was really impressed with the 3D Printed skis from the Stratasys’ booth.
I also had the chance to see the new Objet500 Connex3 Colour Multi-Material 3D Printer in action. The Objet500 Connex3 is the only 3D Printer that enables colour 3D printing with virtually unlimited combinations of rigid, flexible, and transparent materials as well as digital materials – in a single print run.
In the evening I went to the SolidWorks World Tweet-up along with fellow SolidWorks Expert Irfan Zardadkhan, and Javelin owners John Carlan and Ted Lee. The great thing about this mini-event is the chance to meet the Who’s Who of the SolidWorks Community. I had the pleasure to meet Anna Wood again (SolidMuse), Deepak Gupta (the most active member of the SolidWorks forums and owner of the Boxer’s CAD-CAM blog), my good friend Lars Christensen (owner of cadcamstuff.com), Richard Doyle (the User Group guy), Bertrand Sicot (CSWP and CEO of SolidWorks) and Roopinder Tara (TenLinks).
This year Roopinder and TenLinks started a Top Ten SolidWorks Blogger Award to recognize the valuable contribution of the blogger community.
I am extremely happy to report that the Javelin Blog Authors won 8 out of the 10 awards on the VAR’s section: Irfan, Adam, Andrew, Chris, Jim, Joe, Scott and I. Thanks to all the readers of the Javelin blog who voted for our articles!
Tomorrow, the show really starts. After the General Session, Irfan and I will deliver our first presentation, followed by a second one in the afternoon. Wish us luck.
More news, tomorrow evening. Good night for now!
We’re always looking for an interesting project in the 3D Printing Lab, so when a coworker asked me if it would be possible to print an elastic band gun, I said “Sure!”. He sent me an animated GIF showing an interesting design. After some searching, I found it the design was originally from the OGGCRAFT website. http://oggcraft.jp/eng/eng_howto_aioh_1.html There are a lot of really cool designs on that website.
First though I decided to recreate a version from my childhood, the wheel style gun. I had one like this:
So we modeled it in SolidWorks CAD software and got it on the printer. Here is the finished print on the tray.
The entire gun was printed at once, fully assembled. It took about 3 hours to print and the material cost was about $123. The beauty of 3D printing and Stratasys Objet printers is that we can print an assembly that will move after a little bit of cleaning. When printing a moving assembly, all you need to do is make sure that the minimum clearance between any two surfaces is about 0.010”. In some cases you can go closer. After about 10 minutes of cleaning, we loaded it up with rubber bands and gave it a test. It worked pretty well. The trigger mechanism needed a little fine tuning but it worked well enough. I’ll come back to the revised trigger later.
Recently Javelin Technologies took delivery of our first Mojo 3D printer. The Mojo combines FDM technology with commercial quality construction at a very affordable price. This unit is designed to be setup and configured by the user so we thought you would show you what’s involved in this short un-boxing video.
Total time to unpack, configure and power-up the Mojo printer was less than an hour … including time to read the instructions. After the un-boxing we made our first part and it turned out great. Since then we’ve made dozens of parts and everyone has been perfect. Well done Mojo.
We also made a video to show you just how simple the printing process is. Take a look below to see just how easy it is to make great models from your 3D designs.
If you have more questions let me know.
As a first year industrial design student at Carleton University I was tasked with a culminating project of redesigning a common household accessory; the flower vase. Although the project was mainly an exploration into the form and colour development of a common object, I wanted to use the project as an opportunity to rethink and improve the user experience of a vase.
From my experience the main problem that exists with current vases arises when attempting to fill the vase with water. The vertical dimension of vases is often too high to fill in an average household sink. I wanted to create a vase with a dynamic form that could easily be filled in almost any sink, no matter how shallow the sink basin. After working through the design process (sketches, mock-ups, and user testing) I decided upon a final design.
Using SolidWorks CAD software and the Stratasys Objet500 Connex 3D printer I was able to create a high fidelity, durable, working prototype. Having a prototype allowed me to validate all aspects of my design, providing me with valuable ergonomic and human factor related feedback CAD wouldn’t be able to provide.
Since the Stratasys Connex 500 has the ability to print digital ABS Photopolymer I was able to simulate the material properties of standard ABS plastic by fabricating a vase that could withstand high level impacts and high temperatures. These properties allowed for an exceptionally durable prototype that could be tested against the extremes.
The PolyJet printer also allowed the best material properties to produce water-tight parts. FDM models will leak through their tiny voids and “powder” processes (Z-corp etc.) will leak and/or dissolve when the print material comes in contact with water. Therefore the Connex 500 PolyJet printer was the best choice; allowing me to produce a functional, testable model, taking my prototype to the next level.
By Dustin Lee
Dustin Lee is an intern at Javelin Technologies. He is currently studying Industrial Design at Carleton University in Ottawa.
At the Canada 3.0 Conference last week there were two 3D printer experts in attendance, Chris Anderson and me. Both of us are passionate about the ability of 3D printers to create real world objects and both of us where featured in this article published by the CBC.
Anderson’s keynote speech was excellent. He focused on the democratization of manufacturing and how average people can now accomplish what only the biggest companies once could, the manufacturing of things. Like the internet allowed all of us to become publishers the 3D printer will allow all of us to become manufacturers.
Anderson is right on with this. We are at the beginning of the next industrial revolution as manufacturing becomes accessible to the masses. However, Chris’ talk focused on home applications for 3D printing like printing toys for his kids.
What we showed in the Javelin booth is very different; commercial quality equipment from Stratasys that our clients use to grow their business. Javelin’s clients are businesses; engineering firms, product designers, dental labs, hospitals, universities, architects, etc. They need tools to help them design more creatively, get projects to completion faster and control their costs. Home based printers in the under $3,000 price category are great for doll house furniture but they just aren’t accurate or dependable enough for our clients.
At our booth we were demonstrated our entry-level, commercial quality, 3D printer The Mojo which currently sells for $9,900. So what is the difference between a $10,000 3D printer and a $3,000 hobbyist/home one?
The Mojo is a commercial quality machine that makes parts accurately and dependably. Hobbyist, or home, 3D printers require a lot of fine tuning on an ongoing basis and cannot match the accuracy of more expensive models. If you plan to print doll house furniture or you like to “tinker” a hobbyist printer may be for you. If your business relies on being able to accurately model parts for form, fit or functional testing and you need to be able to make parts when you need them a commercial quality printer is the way to go.
Let me tell you two stories that illustrate this point.
Story #1 - I recently met with a client who bought a hobbyist 3D printer for about $3,000. In 3 months they had been able to make a few good parts but it took a lot of attempts to get each one and there had been many abandoned prints along the way
Story #2 – At Javelin we recently received our first Mojo printer. We took it out of the box and set it up in about an hour and 15 minutes (watch this blog for an unboxing video soon). We printed our first part in about 30 minutes and it was perfect – see the Javelin name plate on the right. In two weeks we have printed about a dozen parts and every one has been perfect. No fine tuning, no tinkering, no failed or bad prints; just good and accurate parts.
In short if you are a hobbyist and you want to experiment, take a serious look at the hobbyist printers. If you need your 3D printer to consistently make reliable and accurate parts, then talk to us. We can help.
Doug Angus-Lee is Rapid Prototype and Additive Manufacturing Product Specialist at Javelin Technologies. Doug can be reached at firstname.lastname@example.org or by phone at 905-815-1906 x214.
SolidWorks ScanTo3D is a utility available in SolidWorks Premium which allows a user to open scan data from any 3D scanner in the form of a mesh or point cloud file. This data can then be converted into a Surface or a Solid Model. If you wanted to do exactly the reverse of this operation, the only option would be to save the file out as an STL file but there is little control that a user has over the point distribution and the resolution of the STL file.
Here is a nice trick that allows you to save the data as a point cloud file from a SolidWorks Model. You will need to have SolidWorks Premium to complete this operation.
- Create a new Static Study in SolidWorks Simulation
- Mesh the model with the desired resolution
- Right-Click on the Mesh in the feature manager and choose probe
- Choose Selected Entities
- Turn on the Filter Face from the filter toolbar
- Click on a face and then click CTRL+A to select all faces
- Hit update on the Probe property page
- Uncheck show element number but keep the Show X,Y,Z location
- Hit Save as CSV
The CSV file that is created has all the X,Y,Z data like a point cloud file and can be used as a point cloud file
See the attached video to see step-by-step guide how to create the point cloud file
If you’ve been watching Javelin Tech TV then you know that Scott Lidgey and I are planning to design and build a trebuchet and we encourage you to get involved too. Watch today’s episode of Javelin Tech TV to see Scott’s initial design and how he uses the weldments feature of SolidWorks to create the frame.
If you want to build your own trebuchet here are the parameters we are using. Let us know how you’re doing either by commenting on our blog entries or send us a note to email@example.com and include some video of your chucking things.
Here are the parameters we used to design our trebuchet. I encourage you to build and fire your own trebuchet using these same parameters and send us the results (video would be great). Beat us if you can (evil laugh).
- Built with 3D Printer (except sling and release pin). If you don’t have access to a 3D printer we feel sorry for you because they are really cool and there is no better way to make accurate engineering models. But you can still play along as long as you follow rule #2.
- Build envelope is the net build area of the Stratasys Objet 30 and 30Pro. Your total build volume must not exceed this envelope 294mm x 192.7mm x 148.6 mm (11.58in x 7.58in x 5.85in). For more detailed information on the capabilities of the Stratasys Objet 30Pro click here.
- Total mass of counter weight = 250g (basket + ballast)
- Trebuchet must be on the ground when firing. No you can’t put your trebuchet on a cliff and claim that your shot went 1,200 feet (laugh if you like but I know somebody was thinking of doing that).
- Target range must be approximately level. (see #4)
- Projectile is one standard/regulation golf ball.
- Total distance will be the distance from the most forward point of the trebuchet to where the projectile lands, not including any bounce or roll.
- Safety first. Please be careful not to injure yourself or anybody else and do not damage anybody’s property but your own.
Several years ago I saw this program and first learned about the trebuchet. Ever since I’ve wanted to make one because
- They are an incredible application of engineering principles
- You get to throw things really far
- Trebuchet is a cool word
A video with a simple explanation of how and trebuchet works.
Review of the history of the trebuchet.
The title says it all. If you’ve got a big trebuchet you might as well use it to throw flaming pianos, right?
On Thingiverse you can download all kinds of CAD designs including many trebuchet models. This is a great place to get you started on your trebuchet design.
Good luck and let us know how your trebuchet project is coming along.
As a part of their design process, many of our customers need to prototype parts. Form / fit testing, concept modeling, dimensional verification, marketing surveys, ergonomic studies, rapid tooling, jigs and fixtures, etc. are common needs that can be fulfilled with a good prototype.
For those who don’t have a 3D printer in their facilities, Javelin provides 3D printing services supported by the Stratasys Connex 500, or by the Stratasys Objet 30 Pro 3D printers. Rigid plastics, elastomeric, clear, translucent and speciality materials can be used to prototype parts for companies or individuals who need to bring their ideas to life: consumer goods, industrial products, customized parts can come to life directly from your CAD files or from 3D data captured with a 3D scanner.
The process is really simple, just contact us, submit your file (STL, SolidWorks, STEP, IGES or Parasolid) with a description of the requirements of your part and we will get back to you with a quote and a suggestion of the material that best suit your needs.
Many people are curious about how to include text elements (or other components) in a 3D printed multi material part. In my last post I described the features of a multi material sample with 10 different materials on it. Coincidentially, I needed to include some text blocks in the body of the sample in order to identify each one of the materials. As we have a Connex 3D printer, the only 3D printing solution able to use 2 materials to build multi material prototypes, I was able to achieve this objective.
In order to emboss text blocks with a different material of the base part, you need to follow this procedure:
- Model the recess feature (extruded cut) in the base part.
- Model the text block as a separtate part. Make sure that the dimensions of the letters are exactly the same of the extruded cut in the base part.
- Create an assembly and position the text exaclty within the recess of the base part.
- Export the assembly as an STL file. Make sure to UNCHECK the option “Save all components of an assembly in a single file”.
- In Objet Studio, import all the STL files you just exported in SolidWorks. Make sure to CHECK the “Assembly” option.
- Select one part at a time, and assign the materials according to your requirements.
- You can use the “Automatic Placement” option in Objet Studio.
- You can now save the tray or send the job to print.
You are done, now you have text embossed into a body, with a different material in the same part.