So you need a little help learning how to do lever problems, huh? Below are a bunch of of videos that show how to do the problems in the Levers & Wheels presentation, step by step. Watch it once, or as many times as you like. Please let me know if you have any questions!
1 POE Levers: Effort & Moment
2 POE Levers: Calculating Resistance Force
3 POE Levers: Calculating AMA & IMA
4 POE Levers: Calculating Lever Efficiency
5 POE Levers: Calculating IMA Wheels
6 POE Levers: Calculating AMA & Efficiency of Wheels
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 a 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 give us credit. They will help us pay for this website if you use this code.
If your district is using a purchase order, be sure to use this address and phone number. 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
The advantages to buying it here using the code chrisandjimcim:
US warranty work is done here in the United States.
They sell spare parts and accessories that are shipped from right here too.
Access to the 3D print and laser cut accessory files as seen in the videos like the pneumatic parts feeder and the pallets.
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
Robocell is a very powerful software simulation for industrial robotics. It has a great simulation window that lets you see what would happen if you have a robotic arm. I strongly recommend that you purchase an arm though…. The kids love it, and get a lot out of having it in the classroom.
Here’s some basic information that you need to know BEFORE you even open the program.
Includes: Saving files, Order of Operations, Starting new projects, Importing 3D models, Writing the program.
CellSetup: Setting up your cell
Four minutes of all you need to know to make a cell to begin programming! Remember: CellSetup is a different program than Robocell! Includes info on:
Navigation, YX coordinate system, Adding components, Editing components, Showing/Hiding Envelope.
Robocell Activity A: Cell Setup (Record)
In this video learn the basics of making a cell in the Cell Setup portion of Robocell. From adding objects, to placing them correctly, it is all covered in this seven minute video.
Robocell Activity B: Cell Setup (Teach)
In this six minute tutorial learn how to “Teach” positions in Robocell, and learn how it is different from “Record”.
Robocell: Using Variables
In this tutorial learn how to use variables to stack four blocks in a very simple manner. Also learn how to make labels and use an IfJump command in Robocell as well. This goes along with activity 3.1.2F in the PLTW CIM curriculum.
Robocell: Gravity Feeder/ASRS Demonstration
Students in my CIM class built an Automated Storage and Retrieval System (ASRS) using a bunch of switches, a gravity feeder, and an ER4-U robot. They programmed it to pick and place parts from the feeder into the ASRS, and be able to tell where the parts are, and if the feeder is empty, or if the ASRS is full. Next up: Sorting by colors!
Thanks to Moises Gonzales, here’s a list of RoboCell Shortcuts you can use in your classroom!Continue Reading