Posts Tagged ‘code’

How Accurate is the Dobot Magician?

Question:

Just how accurate is the Dobot Magician?

Answer:

Short answer: very accurate. To 0.007″ to be exact. Verified by an independent study student of mine using statistical analysis.
3bots In May of 2017  I purchased a Dobot Magician from an Etsy shop, as that was the only way to get them at the time. It is now available at In-Position Technologies here for $1499.00.  Use the code “chrisandjimcim”  or mention us on your PO and you will get free shipping as well as US based help and warranty service!
First thing I did, and when I say I, I mean an Independent Study student (props to Vincent Paglia , who will be going to RPI in August, see his info below!) was do an Accuracy test. They claim it is accurate to 0.2 mm, and our test on our robot proved that it was actually more accurate than that.  Try that with the robot you use for CIM class now! The only one more accurate in my classroom is my Fanuc, and it cost almost 15 times what the Dobot cost!

  For those of you into POE and “data” you can you download the spreadsheet with data points, graphs, ect here: 2017 Dobot Repeatability Data.  But this histogram says it all:
Dobot Accuracy Graph When all was said and done, our robot was accurate to about 0.18mm overall. That is 0.007″ for those of you in England… I must say, very impressed with the accuracy.

_MG_5137-4Special thanks to one of my best ever Independent study students for all of the work he did this year with me  with the Dobot. 
Vincent Paglia, son of Thomas and Regina Paglia, has been awarded a scholarship from SME. He plans to study engineering at Rensselaer Polytechnic Institute in the fall.  Vincent has played varsity and JV soccer; has played hockey at Center State for four years at the bantam and midget levels and for the high school as a senior; and is also a member of the Tech Club and National Honor Society.  He received the Rensselaer Medalist Award for outstanding achievement in math and science in 2016 and was also a Scholar-Athlete by the New York State Public High School Athletic Association (NYSPHSAA) while playing soccer and hockey. Continue Reading

How do I get G&M Code Using Inventor HSM?

Question:

How do I get G&M code from Inventor HSM to make my actual part on the milling machine?

Answer:

reddownload post-code-with-hsm
It’s really gotten very easy to do with HSM. Follow the directions below, and you should be all set!  Be sure to download the PLTW tool library, and watch video 0 at the link below so that when you verify it in CNCmotion, it will work. This link shows you how to install the post and tool store, and provides a link below Video 0 to download the toolstore and post for the Intellitek machines: HERE
hsm-post-code
  Step 1   Click on the Post Process tool in the toolbar as shown above.
Step 2 Choose the type of machine you have. In this case I am using an Intellitek mill.
Step 3 Chose where you want it to save the NC file.
Step 4 Click on the Post button at the bottom. Your code will then open in a code editor, and be saved in the folder where you told it to be. You should now be able to open it in CNCmotion and simulate it or run the code on the machine of your choice!
                                        Continue Reading

Is There A Better Way To Teach G & M Coding By Hand?

Question:

Initials on a wax block are boring and expensive!  Do you have a better way to teach G & M code basics?

Solution:

Sure do!  How about doing initials, or a simple graphic on a wooden yo-yo?  That’s right, a yo-yo. Students love it! Special thanks to Chris Lallier who put it all together with the help of Jim Hanson and myself.  Also, a very special thanks to Chuck “The Godfather of CIM” Spangler, who has been doing plastic yo-yo’s for many years! All you need to do is download the zip file below, and order the Yo-yo kits WITH sleeper string; that’s right, a SLEEPER string, and you are off to the races.  Yo-yo’s are about $1.50 each; much cheaper than wax or Renshape, and kids can do “testing” on the product after it is finished and assembled. A great all around project.  You will however have to build the fixture to hold the yo-yo’s The yo-yo blanks can be bought at Casey’s Wood in Maine, and they do take PO’s.  Tell them Chris & Jim sent you!
 
reddownloadYo-Yo Files
In this file you will find all of the information and files that you need to build a Yo-Yo holding fixture.  This fixture is designed to firmly hold wooden Yo-Yo halves while they are engraved with a CNC Machine.
Includes the following documentation: FILE 1a. YO-YO Fixture step-by-step FILE 1b. Pdf. YO-YO Fixture step-by-step FILE 2a. YO-YO Fixture Autodesk Inventor Drawing FILE 2b. Pdf. YO-YO Fixture Autodesk Inventor Drawing FILE 3. YO-YO Fixture Autodesk Inventor Part File FILE 4. YO-YO Fixture EDGECAM File FILE 5. YO-YO Fixture NC File FILE 6. Grid Paper File FILE 7. Technical Support FILE 8. Credits
WP_0005231Technology teacher Chris Lallier from SUNY Oswego has put together a killer project for teaching basic CNC programming. The project consists of a wooden yo-yo that is engraved, using CNC, on both sides. Students are then able to paint, stain, sand and assemble the project, giving students the opportunity to learn about more manufacturing processes.
Special thanks to Chris Lallier who put it all together with the help of Jim Hanson and myself.  Also, a very special thanks to Chuck “The Godfather of CIM” Spangler, who has been doing plastic yo-yo’s for many years!
YoYo_PartsThe Yo-Yo kits, unassembled, are available at Casey€™s Wood Products, and cost less than a dollar each if you order 50 or more. The best part is that this is the DELUXE model: with a sleeper string! It was the only place that sold them in smaller lots, and you can buy them individually as well. We looked into plastic ones as well, but they had to be purchased in lots of 250. This would make a great promo for open house as well!
YoYo_Fixture_FinalThe project consists of a teacher built fixture to hold the halves in your machine, and then provides you, the teacher, with a student driven activity to produce the final product. Also included is a step by step guide on building the fixture, a complete parts list, the Inventor, EdgeCAM, and NC files, as well as student templates.
The whole project, including all the above files, is available in the downloads section for your use. The file is a .zip file, and just needs to be downloaded, and unzipped, in order for you to use the files.
Chris Lallier is a Student Teacher from SUNY Oswego graduating in December 2011. He is a Technology Education major with a background in residential construction. While working summers with his family construction business he was introduced to CAD home building programs, structural design, manufacturing processes and planning techniques. He was inspired to move into the field of Technology Education so that he could teach others about the topics that he found fascinating. He is currently teaching three college credit courses at Cazenovia High School; Principles of Engineering, Design and Drawing For Production and Computer Integrated Manufacturing. Chris is looking forward to a long and rewarding career of learning and teaching students about all things Technology.
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