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GWorks
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Cyber K'NEX Bobcat / Skid Steer
Cyber K'NEX Bobcat / Skid Steer![]() I've made this model for the K'NEX to demonstrate how compact you can build with the Cyber K'NEX system. This is a system that uses an "intelligent" processor unit, to which motors are attached. It may be hard to get the parts if you don't have the Cyber K'NEX Ultra set from 2002. You can somtimes find the complete set for 100-200$ on Ebay. This model also relies on the use of a custom 3D-printed worm gear, which makes it possible that the bucket of the model can be raised and lowered. Normally this requires big amounts of torque, which the K'NEX motors cannot deliver. The worm gear, slows down the rotational movement, while increasing the torque on the axle of the following red gear. This is then again slowed down by a gear reduction of 1 : 2,4 to reach the axle of the bucket. There is no video of the model working, it had run out of batteries. The steps are as followed:
Happy building! Step 1: Parts Needed![]() Access to a 3D printer, or willing to use a 3D print service like Shapeways or 3D Hub. I got the design of the Worm gear from GrabCAD Cyber K'NEX parts:
Step 2: Chassis![]() First you start with the inner section, that will be between the motors. After adding the motors, you add the sides that will hold them together. After adding a piece on the back and some small wheel covers, you add the gear mechanism for the wheels, and the wheels themselves. Step 3: Rear end - Lower part![]() First you start with placing the battery pack loosly in it's place. Then the rear gets it's cover and the strenght of the model increases. Step 4: Rear End - Upper part![]() The processor unit is put in it's place. You don't have mind the place of the cables too much, yet. Then the ON/OFF switch is added at the rear. This is used to turn the complete model ON. Then the battery pack for motor 1 is put in it's place, after which the motor and the worm gear are installed. Then the gears are put in place and you will make the Bobcat's roof & roll-cage. Step 5: Shovel & Finishing up![]() Note that I used 2 broken 3-way connectors in this. You can also use a clip with a hole (1-way connector) And that's it! You've fnished the model. In the last step, you will see how to control it. Step 6: Controlling the model![]() I hope you've enjoyed this instructable, if you have comments, suggestions or questions, put them in the comment section found below. Thanks for checking it out ![]() |