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  • Users: John2002
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  1. John2002

    Materials & MFG. Processes for dowel pins

    Hello, Can anyone tell me if hardened dowel pins are generally made from cold rolled or hot rolled steel? I would appreciate any feedback I can get on the dowel-pin manufacturing process from start to finish along with the usual type of steel used. I want to use a hardened dowel pin as the...
  2. John2002

    Torsional deflection of an octagon shaped tube or housing

    Hello, I would be grateful if someone could please help me calculate the amount of torsional deflection (in degrees) of an octagon shaped tube or housing for a given amount of torque. The housing is an 8 sided octagon circumscribed "around" a 0.905 inch diameter circle. The housing...
  3. John2002

    Dowel Pins With Nice Finished End

    Hello, Does anyone know where I might find hardened dowel pins that have at least one end that is crowned or beveled in a nice consistent manner? I have an application where one dowel-end is seen by the end user of the device and I would like to find some dowels with one nice finish end...
  4. John2002

    Mechanical Desktop 3.0 Locking up on startup

    Hello, I am having a problem with Mechanical desktop 3.0 on start up. After clicking the Icon, the programs starts to open fine, but then it freezes and the command line says "regenerating drawing". Clicking on the tool bars or file menues produces no results. The only way to close...
  5. John2002

    Animation of 3D solids and/or assemblies

    Hello, Does anyone know of any good freeware or shareware software that allows you to animate 3D solid models and/or assemblies created with AutoCAD? I am looking for the cheapest software with the shortest learning curve. I have tried a freeware program called "3D canvas" at...
  6. John2002

    Converting 3D solids to polygons in AutoCAD 14

    Hello, Can anyone tell me if you can convert 3D solids to polygons in AutoCAD 14? Is there a freeware, shareware, or lisp program that can do this? I want to import an AutoCAD dxf file containing 3D solids into the freeware program "3d canvas" but the program requires that the dxf...
  7. John2002

    Using .FAS files in AutoCAD 14

    Hello, Can anyone tell me how to load and use .FAS files in AutoCAD 14? I can use regular .lisp files but I am having trouble with an .FAS file I downloaded. I am not familiar with FAS files. I attempted to open the file with a word processor, but I just got a bunch on unreadable code and no...
  8. John2002

    Dimensioning and tolerancing close fitting mating parts

    Hello, I have a question regarding the best way to dimension and tolerance close fitting, mating parts. I have two parts made from 60-61-T6 aluminum that mate with a tongue and groove fit. I have a 0.250" wide tongue that must fit into a 0.250" wide groove. There cannot be any...
  9. John2002

    Dimensioning and tolerancing close fitting mating parts

    Hello, I have a question regarding the best way to dimension and tolerance close fitting, mating parts. I have two parts made from 60-61-T6 aluminum that mate with a tongue and groove fit. I have a 0.250" wide tongue that must fit into a 0.250" wide groove. There cannot be any...
  10. John2002

    Dimensioning and tolerancing close fitting mating parts

    Hello, I have a question regarding the best way to dimension and tolerance close fitting, mating parts. I have two parts made from 60-61-T6 aluminum that mate with a tongue and groove fit. I have a 0.250" wide tongue that must fit into a 0.250" wide groove. There cannot be any...
  11. John2002

    Cam-Follower bearings (Searching for low cost source)

    Hello, I am trying to locate a low cost source for stud-type cam-follower bearings with a outer bearing ring size of (1/2" preferred) to 5/8" maximum. I can use the needle roller type or possibly the bushing type. Inch or metric does not matter but the inch sizes seem to be much...

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