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Recent content by autocol

  1. autocol

    Revision Table - how to create a default version

    submit a bug report? :-)
  2. autocol

    Multiple Rotational Components on a Single Dowel Pin

    okay... i have no idea what you're designing so let's name and define, for the purposes of the exercise, a few parts. firstly, the BASE, which is just a block with a hole, the SHAFT, which is (would you believe it) and shaft, and GEAR1 and GEAR2, which are two shapes, with holes in them, that...
  3. autocol

    We're expanding - any tips?

    and for goodness sake... get RID of win98!!!
  4. autocol

    Sprocket tooth profile

    thank you guys, i will check that when i get back to work...
  5. autocol

    Sprocket tooth profile

    Hey guys, I'm in a position where I need to cut a lot of sprockets. Of course, existing sprocket manufacturers aren't too keen on giving me the profile of the tooth, and I've had no luck google-hunting. Can anyone point me to an information source for the correct design of sprocket teeth? The...
  6. autocol

    Changing the reflection bmp in Inventor 6

    hey kurt, if carol bartz drives a mazda miata, i'll change my name to elvis! the car3 bitmap was originally just a 'quickie' two of the guys took in the carpark at autodesk's michigan facility (i think), but turned out to be the best they could create! i've never found an image that's looked as...
  7. autocol

    Some Questions for you......

    i'll try to fill in the couple of gaps that designermike wasn't sure about. i'm not a sheetmetal expert either but i have set up a strip-type die and have a strategy to suit your question... you want to look into setting up a SKELETAL model. the inventor newsgroup that mike pointed you at is...
  8. autocol

    Energy absorbed by evaporation

    Doc, interesting reading, thank you. Franz... yes, you read the invisible lines correctly. Basically, my logic went thus: in a turbo/super-charged car, you often have an intercooler, to bring down intake temps. In an LPG powered car, you use radiator fluid to add heat to the vaporising gas, to...
  9. autocol

    Energy absorbed by evaporation

    thanks greg... from looking at the major oil company sites i've managed to find out that our blends (i'm pretty sure you're an aussie, yeah?) are fairly close to 50/50 propane/butane, so by following that i should be able to obtain most of the physical data i need. or i could, if i knew exactly...
  10. autocol

    Energy absorbed by evaporation

    Hi everyone, I'm trying to figure out how much energy LPG (liquid petroleum gas) absorbs as it evaporates, ready to be fed into the engine. The system that I'm familiar with uses the engine coolant to keep the converter (the device that controls the evaporation of the LPG) from freezing as the...
  11. autocol

    Inventor slow in large drawings

    inventor HATES anti-virus programs, because it opens so many files as once. i set norton to ignore inventor files... oh yeah, and you should definitely work on the local machine for performance reasons. look into creating personal workspaces for group projects... works really well.
  12. autocol

    Lenght of arc in 2d mode

    normal dimension tool. click arc, then before you place the dimension right click and choose "arc length" from the "dimension type" list...
  13. autocol

    Inventor R5 - Constraining A Coil

    ah, the old "how do i constrain a coil?" question... everyone gets stuck on this. okay, firstly, to create the coil initially, you must have selected an axis (a work axis or a sketch line) to complete the command. so, make that axis or line visible, and use it in a mate constraint to...
  14. autocol

    Importing Inventor 6 file to inv 5 or 5.3 series

    your best bet is to save-copy-as out of R6 and select SAT files. the result will be "dumb" (no parametric intelligence) unfortunately. there's nothing else you can do really...
  15. autocol

    Lock-up/workstation Freeze on Rotate

    just try different video drivers... hopefully you'll find one that does the trick. inventor much prefers nvidia cards, but you should be able to get it going with what you've got...
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