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  • Users: jjellin
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  1. jjellin

    SW2005 Insert Mate like Autodesk Inventor

    Hello All, I haven't used SW since version 99. I've been using an older version of Inventor. One handy inventor mate is the insert mate. Its basically a combined concentric and coincident. Very handy for mating two holes, a bolt or shaft to a hole. Is there a mate for this or do I have to do a...
  2. jjellin

    Need Torque Sensor

    My company builds a machine that takes a small door (1 ft x 1 ft X 1 in thk) off of a small container (1 ft cube). The door has two key holes that have to be turned 90 degrees to unlock the door for removal. The manufacturer of the container has asked us to add a torque sensor to measure the...
  3. jjellin

    Need source for black plastic pipe/tube

    Specifically I'm looking for a source for the black plastic pipe that are used to cover the lifting columns (gas cylinders) on adjustable height office chairs. That's right, you can probably take a quick peek between your legs and see an example right now!! They are usually two or three pieces...
  4. jjellin

    Looking for a miniature actuator

    I'm looking for a miniature linear actuator that has a max cross-sectional size of .250" square and is no longer than about 3". I need it to exert between 1 to 2 pound-force and have a stroke of at least .188". Additionally it needs a fast response time (actuates and releases in less than 0.5...
  5. jjellin

    Need Aluminum Alloy to widthstand heat

    Is there and alloy with similar mechanical strength properties of 6061-T6 that can widthstand heat better than it. We use 6061-T6 to make a tool that holds devices in an oven. Typical thickness of the tool is about 1/2" and L X W is around 6" X 6". The 6061-T6 is warping. I'm...
  6. jjellin

    Greaseless TFE Leadscrews in cleanrooms

    I am looking for greaseless leadscrews for use in semiconductor cleanrooms. There telfon coated leadscrews (specifically I have used in the past leadscrews made from Kerk Motion Products). Greased leadscrews have been used at my current job in the past, but for ease of maintence, I want to...
  7. jjellin

    Bond/epoxy for cleanroom, stainless steel to ???

    I need to find a "cleanroom safe" epoxy or other adhesive to bond a cylindrical spacer (of a material that is yet to be determined)inside a stainless steel tube (.125" ID, .150" OD). I was planning on the undetermined material to be a plastic, such as PPS, Peek, acrylic, pvc...
  8. jjellin

    Getting my LED's to light up from stepper interface board!!!

    Okay, please help me, I am a confused Mechanical Engineer!!! I have a stepper driver board, which has built in fault protection. When the board goes into fault protection, I want to light up an LED. Here's what I have to work with: The fault protection pin pulls low when fault is on, and floats...
  9. jjellin

    Drafting/Drawings Reference

    I am looking for a good reference (book or website) on proper drafting techniques for Machine Design. I am a relatively new Mechanical Engineer, and I am constantly stumbling when crating drawings. I eventually want to use GD&T callouts, but I want to be familiar with all callout symbols used in...
  10. jjellin

    Electronic Distance Measurement (RF/Microwave)

    Hello, I am looking for help on designing or integrating an electronic distance measuring device. What I am trying to do is to know when two robots travel a certain distance apart. For example, I need to know when they are 10 feet apart, 20 feet apart,.... up to 50 feet apart. Lets say I need...
  11. jjellin

    Vacuum Cleaner Attachment Design

    Hello, I need a little help designing a vacuum cleaner attachment design. This is for a engineering class project. What we are doing is hacking up a Black and decker 4.8 Volt dustbuster to use as our vacuum source. I don't have any other info on the Dustbuster, but what I need to do is design...
  12. jjellin

    Proper way to detail an ellipse

    Hello All, I've created an ellipitical plate needed for an assembly. My probelm is what do I need to fully define it as a 2-D drawing that a machinist to understand. Right now all I have is the major and minor diameters and axes, as well as the overall centerpoint. If I gave this to a machinist...
  13. jjellin

    Solidworks Macro - BOM

    I want to extend on the Bill of Material function that Solidworks already has. Basically I want a macro to make a Bill of Materials with my custom template (this part I can probably figure out). Then I want to save that BOM as an Excel File (again I could probably figure that out too). Okay hard...

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