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Recent content by gbednar

  1. gbednar

    Linear Bearing Question

    Check out www.pacific-bearing.com . I used their bearings and shafting to move an Induction welder to from the weld box on a tube mill. My guess is the welder weights around a ton - ton &1/2.
  2. gbednar

    Can't print 3-D veiw shaded

    Assuming you are using ACAD 2000, you are forgetting that this cannot be done. You must apply materials to the solids, add lights, and render. If all you need is a quick shaded picture of your solids, here is what I do; I shade the drawing in AutoCad, push the "print screen" button...
  3. gbednar

    identifying a material

    A possible solution would be to send it to a lab to determine the chemical composition. They may be able to determine the material based on the properties. I will try and post the name of the lab we use once I find it.
  4. gbednar

    inserting a block - with pull dn menu

    Here is how I do it with a slide menu ***IMAGE_FASTENERS **SHCS [FASTENERS Created By George Bednar] [250-20,1/4"-20 X 2"]-INSERT;*250-20X2SHCS;\;; [250-28,1/4"-28 X 2"]-INSERT;*250-28X2SHCS;\;; [312-18,5/16"-18 X 2"]-INSERT;*312-18X2SHCS;\;; I have the drawings...
  5. gbednar

    Burned Hydraulic Oil

    While the machine is in operation and at operating temperature, measure the tempuratue on the valves, cylinders, pumps, ect... You could use a infared camera or one of those non-contact temperature gun that you point at the surface you want to measure. My first thought would be that you may...
  6. gbednar

    Calculating Pressure Applied via Threads

    Desertfox, The tube is 1.000" in diameter x .110 gage and the material is c1018 Steel. The weld is actually a "forging" We use induction to heat the strip edges then they are pressed together with a 3 roll weld box. The ID and OD beads are removed. This is all done...
  7. gbednar

    Calculating Pressure Applied via Threads

    The rolls have a offset radius of 1.500" and the tube is 1.000" We can squeeze them until there is about 0.06" between the rolls and the tube would measure 0.625 across (shaped like a oval.) On the vise, both jaws move in and out via left and right threads on a single shaft. We...
  8. gbednar

    Calculating Pressure Applied via Threads

    We want to calculate the pressure we apply to a piece of tube via a set of squeeze rolls. The rolls are in a vise like stand. Question; If I know the amount of pounds being applied to the the threaded rod (via torque wrench) can I then calculate the force being applied to the squeeze rolls...
  9. gbednar

    Custom title blocks

    I have created our title block for each size paper as a dwg file. For each new drawing, I open the correct paper sized border and save it as the current project. This is probably a weak way to do this, but I have been doing it for years. I guess I really didn't want to take the time to learn...
  10. gbednar

    NPT Tapping

    MarkB2 This is not the exact scale I have but this is a link to site that contains the information http://www.engineersedge.com/pipe_internal_thrd.htm If you go to http://www.engineersedge.com there is information on all types threads ect... The exact scale is made by Alvin & Co in Dallas...
  11. gbednar

    NPT Tapping

    MarkB2, I have a Screw Data Selector that shows the tap drill diameter and depth of effective thread per size for NPT. For 1/8"-27 it states a tap drill diameter of 0.339"(R) and an effective thread length of 0.264" (7mm approx) For 1/4-18 it states a tap drill diameter of...
  12. gbednar

    Cam I Attach a Rendered Drawing to a Post??

    Can you attach files in this forum?? I would like to have an AutoCAD 2000 rendered drawing in .jpg (40k)reviewed for everyones input
  13. gbednar

    Executing LSP routines

    Could you post the first few lines of the lisp? Maybe the original author's instructions are generic. Usually the name of the lisp is something like this (defun c:al (). For this example you would load the lisp and type al to activate. I keep all my lisps in the AutoCAD Support directory as...
  14. gbednar

    Thread Strength in 6061 Aluminum

    I would like to know how many tons of pressure it would take to "strip" 1/2"-13 threads x 1-1/4 deep in 6061 aluminum. The bolt would be grade 5. Thanks in advance!!

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