CNC PROGRAMMING SOLUTIONS

  • What else do we need to teach CIM?

    What else do we need to teach CIM?

    Question: What else do we need to really teach CIM? Are there any “extras” that you recommend? Answer: We get this question weekly. So here’s what we are going to do. Give you a preview to a Google doc that is live so we can update it on the fly. You will see it right […]Read More »
  • CNC Vocabulary For HSM

    CNC Vocabulary For HSM

    Question: Since I switched from EdgeCAM to HSM, the vocabulary is a little different. Do you have any Key Terms that you use in your classroom that you wouldn’t mind sharing? Answer: Of course not! The terminology is a little bit different when you switch from EdgeCAM to HSM, but the concepts are the same. PLTW […]Read More »
  • How do I use an edge finder?

    How do I use an edge finder?

    Tired of using the I.L.A.R method of finding the corner of your stock (It Looks About Right…). Then here’s the video for you! This video was made by Tormach, and it shows you how to utilize two different types of edge finders. Thanks Tormach! This video demonstrates the use of a mechanical edge finder and […]Read More »
  • What’s the Container Project?

    What’s the Container Project?

    What’s the container project you ask? It’s a project done in CIM class that teaches many different facets of CIM including: G & M Code, 3D Modelling, Manual machine operations, CNC machining, Secondary processing, Tolerances, Documentation, Mass Production techniques, Assembly operations, Order of operations, Costs of materials, Speeds & feeds…. Just to name a few… […]Read More »
  • Tool Attribute WS: What Speeds & Feeds for Renshape?

    Tool Attribute WS: What Speeds & Feeds for Renshape?

    Question: What are the speeds and feeds that you use in your classroom while CNC machining? Answer: That’s really a loaded question!  It depends on a lot of different variables. With that said, below is a list of speeds, feeds, plunge rates, and general info I use when machining Renshape 440 or 450 in my […]Read More »
  • HOW DO I MAKE SURE MY CONTAINER LIP & LID WILL FIT?

    HOW DO I MAKE SURE MY CONTAINER LIP & LID WILL FIT?

    Question: How do I make sure my Container Lip & Lid will fit? The last time we did the container project, the student made them the same size, and the parts did not fit together! I do not want this to happen again! Solution: The 3 minute video below will help you make sure that […]Read More »
  • How many teeth or flutes for my CNC tools?

    How many teeth or flutes for my CNC tools?

    QUESTION: Does it matter how many teeth or flutes my end mills have? ANSWER: Actually it does. A good rule of thumb for the beginner: the harder the material, the more teeth!  What’s the difference between teeth and flutes? Teeth do the cutting, flutes bring the cut material away from the part. The excerpt from […]Read More »
  • What kind of tools should I use?

    What kind of tools should I use?

    Question: I know nothing about tools for CNC machines.  What kind are there, and what can I use them for? Answer: There is so much to learn about tooling when it comes to CNC machines, that it can really be overwhelming. Here we present just the basics as it pertains to a “rookies” classroom. There […]Read More »
  • Containers: Cool designs & example files!

    Containers: Cool designs & example files!

    Question: I am sick of making square or rectangular containers! Do you have any better ideas?  Solution: Who says your container has to be a 3″ x 2″ x 2″ box? What do you get when you ask master teachers for some of their best container project designs ever? These! A lot of these come […]Read More »
  • What’s the Difference Between Climb and Conventional Cutting?

    What’s the Difference Between Climb and Conventional Cutting?

    QUESTION: What is the difference between Climb & Conventional cutting? ANSWER: Milling tools can advance through the material so that the cutting flutes engage the material at maximum thickness and then decreases to zero. This is called Climb Milling. Cutting in the opposite direction causes the tool to scoop up the material, starting at zero thickness […]Read More »
  • What is Chip Load?

    What is Chip Load?

    QUESTION: What is Chip Load? ANSWER: Chip Load is defined as the thickness of material cutaway by each cutting tooth. See the explanation below in an excerpt from the downloadable powerpoint! CNJ CNC TOOLING BASICS  Read More »
  • What is Stepover?

    What is Stepover?

    QUESTION: What is Stepover? ANSWER: Stepover is defined as the the space between passes of a tool during an operation. The HSM default is 95%, making a very smooth finish on a surface with a ball end mill, but it will sacrafice machine time. In other words, it’ll take forever!  You can change it to 1/2 […]Read More »
  • What is Depth of Cut? How Deep can I Cut on a Single Pass?

    What is Depth of Cut? How Deep can I Cut on a Single Pass?

    QUESTION: What is Depth of Cut? How deep can I cut on a single pass? ANSWER: Great question! a good rule of thumb is the depth of cut shouldn’t be greater than 1/2 the diameter of the tool; especially on smaller machines.  Any more than this and you risk messing up the bearings in your […]Read More »
  • MAKING ARCS WITH G & M CODE

    MAKING ARCS WITH G & M CODE

    Question: How do I make an arc using G & M codes?   Solution: It’s easy! The method shown here shows you how to do it with a known end point and centerpoint. The four minute video below shows you how step by step. Sorry for the poor sound quality, but it’s real time during […]Read More »
  • Is There A Better Way To Teach G & M Coding By Hand?

    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 […]Read More »

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Jim Hanson

Chris Hurd

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