VEX Encoder Doesn’t Work!

Question:

I can’t seem to get my encoder to work no matter what I do!  It will only ever return a value of 0 or 1, and only for a moment. What’s up?

Answer:

Well, did you restart your software and hardware? Then check this out!  I’ll bet you have another analog sensor plugged into your cortex, like the sonar…. Found this after searching the web…. If using another analog sensor, the Quad Encoder MUST be plugged into a higher number port. Really? Yup. See the snip below. Spent at least a day on this then found the documentation on line, switched the ports with the sonar sensor so that the encoder was on 8 & 9, and the sonar on 4 & 5, and viola! Success!  Try it! Also… we NEVER got the error as shown below… It just didn’t work. Download the whole VEX pdf here: Quadrature+Encoders

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How do I get a $100 discount and free shipping on a Dobot Magician?

Great question! Luckily the answer is, as always, “It’s easy!”

I just purchased eight of them for my CIM class after testing them for the better part of the last six months. I feel that they are so much more accurate and durable than anything else I have used in my classroom to date. Any questions please contact me. Also see the videos I have made about the accuracy here, and about how I used it here.

Just go to www.dobot.us to purchase your robot from In-Position Technologies; a real robotics company that designs, sells, and services manufacturing systems for industry. They are the only US based provider for  service and support for the Dobot line of robots. If your district is paying on line, be sure they type in the code: chrisandjimcim to get a $100.00 discount and free shipping.

If your district is using a purchase order, be sure to use this address and phone number to get the same discount. Just put the code chrisandjimcim on the purchase order. The address to use is:

Dobot.US c/o Christian Hunter

7403 West Boston Street

Chandler AZ 85226

Phone: 480.890.8086

The advantages to buying it here using the code chrisandjimcim:
  • $100.00 off.
  • Free Shipping.
  • US warranty work is done here in the United States.
  • They sell spare parts and accessories that are shipped from right here too.
  • US based email and telephone support.
  • Updated User’s manual.
  • Software is FREE. No Codes. Download HERE
  • Comes Pre-assembled.
  • Access to Word Doc Activity files as they become available
  • Access to the 3D print and laser cut accessory files as seen in the videos like the pneumatic parts feeder and the pallets.

I plan on writing activities to go along with the robot shortly, and will send them to anyone who purchases one through In-Position Technologies. As an added bonus, I will also share the files so that you can make your own accessories like pallets, AND pneumatic parts feeder as seen in my videos, free of charge!

Remember: a portion of this sale helps offset the costs associated with maintaining and improving chrisandjimcim.com. Thank you! Continue Reading

Are there other VEX Parts?

Question:

Do you have a list of all the VEX parts?  I want to order just a few, but I do not know what the part numbers are can you help?

Answer:

Sure can!  Ryan Stobaugh, CIM Master teacher, has put together an updated spreadsheet that has been updated with all of the parts with numbers and prices as of July 2017. Includes pneumatics at the end!   Just copy and paste the part numbers into your district’s requisition form, and add the prices!

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Robocell: Handshaking

Question:

How do I complete Robocell Activity H, Handshaking? It’s not that hard to do once you understand the concepts behind variables.

  Here are some video tutorials to get you on your way:

Handshaking: Cell Setup

Handshaking: Finding the Points

Handshaking: Programming the Cell

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Robocell: Palletize and Storage

Question:

How do I do Robocell Activity G, Palletization & Storage? That’s hard!

Answer:

It’s not that hard to do once you understand the concepts behind variables.

  Here are some video tutorials to get you on your way:

Palletize & Storage: Concepts & Cell

Palletize & Storage: Programming the Cell


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Get in touch

Jim Hanson

Chris Hurd

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