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  • Users: sboyce
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  1. sboyce

    Small gearbox needed

    I'm looking for a very small worm gearbox, preferably less than 1" by 1" (the thickness doesn't matter much). I've already looked on globalspec and thomasnet with less than promising results. I was wondering if anyone here knew of a specific company that manufactured gearboxes this size or...
  2. sboyce

    Small Slip Ring

    I'm looking for a "slip ring" or rotating electrical connector for use in a robot. It has to be pretty small, ideally no more than 0.25" in diameter and 0.5" in length. I've already looked at McMaster Carr, GlobalSpec, Grainger and ThomasNet and have yet to find one that meets my specs. Does...
  3. sboyce

    Materials Database

    Does anyone know where I can find a readymade materials database for Solidworks? It would be a lot easier than making my own with the clunky interface they already have. -Sam Boyce Asst. Mechanical Engineer www.AppleAid.com
  4. sboyce

    Flexible drive shafts

    I'm thinking about using a flexible drive shaft in a design, but I'm worried about backlash. I'm going to need to know the orientation of the end effector to a good degree of precision. It seems to me like such a shaft would have some pretty big backlash problems in such an application. I've...
  5. sboyce

    Free standing entity in SimMechanics?

    Is it possible to model a free standing entity in SimMechanics (ie. a robot with 4 wheels)? If so, what joints would you use to "ground" the model or how would you otherwise simulate the robot's interaction with the ground? It needs to roll around, so the friction between the wheels and ground...
  6. sboyce

    Timing Pulley Efficiency?

    Is there a good way to calculate the efficiency of a timing pulley setup without having to put it together? -Sam Boyce Asst. Mechanical Engineer www.AppleAid.com
  7. sboyce

    Simulation question

    I'm trying to make a simulation for a wheeled robot and how it will interact with different obstacles. Can anyone recommend some simulink add-ins? My boss is also pretty cheap so I'll probably have to stick to absolute neccesities. -Sam Boyce Asst. Mechanical Engineer www.AppleAid.com
  8. sboyce

    Simulation question

    I'm designing a wheeled robot and I'm just wondering what add-ins and products from SolidWorks would be useful. The websites tout a lot about their abilities but not much about their limitations so I was hoping to get some input from someone who had done something similar in the past. -Sam...
  9. sboyce

    Simulation question

    I'm designing a wheeled robot and I'm just wondering what add-ins and products from MATLAB and Simulink would be useful. The websites tout a lot about their abilities but not much about their limitations so I was hoping to get some input from someone who had done something similar in the past...
  10. sboyce

    Robot Tires

    I'm looking for a commercial source for tires for a robot. I'm a recent college grad working in a small company and there's no one here who can really help. The tires will have to support a 75-100 lb. robot and work in both rugged, offroad, outdoor situations as well as indoor ones. If someone...
  11. sboyce

    Robot Tires

    I'm not sure this is exactly within the scope of this forum, but hopefully there will be some people here with the knowledge I need. I'm looking for a commerical source for tires for a robot. They should be around 6" in diameter, all 4 need to support the weight of a 75 to 100 lb. robot, and...
  12. sboyce

    Worm gearing terminology

    Forgive my ignorance, I'm a bit of an engineering newbie, just started working and all. I'm trying to design a non-backdriving worm and worm gear mate. I've read that this condition is satisfied when the worm lead angle is less than the inverse tangent of the coefficient of friction between the...

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