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  1. xydrex

    What does a PE stamp get you?

    There was no way for him to know whether or not further work/alterations/additions may be performed by someone else after he advised on what he saw. The seal basically formally signaled the work has been finalized & no further modifications or additions would follow. To assume a PE should...
  2. xydrex

    Loads from Centrifugal Supercharger.

    I need to determine the axial & radial loads resulting from a centrifugal blower to facilitate appropriate bearing selection & arrangement. The books I found all focused on centrifugal pumps for liquids, I have not yet found one that deals with these issues for air. Can anyone point me to a...
  3. xydrex

    Sensor to detect slippage in stepper motors

    Hi all, I have recently cnc automated a large mill via retrofit. Main problem is occasionally the motors slip, so the software (mach 3) thinks motion has occured while obviously it has not. Is there any sensor to detect if slippage occurs in these motors? Perhaps by the voltage or current...
  4. xydrex

    Synchroflex T5 timing pulley tooth profile

    No timing pulleys are much simpler than involute gears. Angles are specified & there are straight sections.
  5. xydrex

    dxf COMPATIBILITY Solidworks 2007

    Hi, we are using Solidworks to create dxf's that our suppliers use for CNC procedures. Problem we've been having with 2007 is some of our suppliers are claiming when they open our files 80% of the lines are doubled up (2 on top of each other) & some radius fillets are missing. Has anyone...
  6. xydrex

    Synchroflex T5 timing pulley tooth profile

    Thanks for that we will consider all options. However we have obtained the standard DIN 7721 & have discovered that the angle on the T5 pulley teeth is 50 deg while on the T5 belt teeth are 40 deg. This was a bit surpirising as we were expecting the angles to be the same. Can anyone verify...
  7. xydrex

    Synchroflex T5 timing pulley tooth profile

    I posted this in the driveline section but then I found this forum which is obviously more relevant - Hi, I need to cut a timing pulley - metric synchroflex T5 (5mm pitch). Reason is - this size only goes up to 60 teeth off the shelf but we need one that is 72 teeth. So I am after the exact...
  8. xydrex

    Synchroflex T5 timing pulley tooth profile

    Hi, I need to cut a timing pulley - metric synchroflex T5 (5mm pitch). Reason is - this size only goes up to 60 teeth off the shelf but we need one that is 72 teeth. So I am after the exact profile of the tooth so we can design the cutting tool for it. I have profile of the belt tooth, but...
  9. xydrex

    Suitable Gasket Materials

    Turns out it would have to be moulded as its uncommon in sheet form. Does anyone know of a supplier of this in sheet form, our desired thickness is 1mm.
  10. xydrex

    Hardening of 4140

    Top link thanks
  11. xydrex

    Suitable Gasket Materials

    Thanks for that tbuelna, a great link. Its led me to so far the best option which appears to be HNBR hydrogenated nitrile rubber. This has high tensile strength, low permanent set, very good abrasion resistance and high elasticity, & suitable for withstanding the relatively high temperatures...
  12. xydrex

    Suitable Gasket Materials

    Thanks for that, my search that came up with urethane was off the web not from this site. What attracted it to me was that it comes back to shape after it was removed (but didnt mention the temp limit). As I said it was re-usability we wanted to look into as a main objective, I couldnt find...
  13. xydrex

    Suitable Gasket Materials

    No fuel just air. I've done some extra searching can anyone comment on urethane gaskets or any other ideas. Thanks..
  14. xydrex

    Hardening of 4140

    Hi, what impact on fatigue life would through hardening have on 4140 steel?
  15. xydrex

    Suitable Gasket Materials

    I'm looking for a suitable gasket material for intake chamber. It is to seal an aluminum surface with a composite surface. Max temperatures will be around 130 deg celcius. The surface of the composite is not machined & is slightly textured so the gasket must deform & seal this region...
  16. xydrex

    DOCUMENT PROPERTIES

    Hi, does anyone know how to change the defaults for 'document properties' PERMANENTLY. This includes things like fonts, arrow sizes etc. I see only system options are global, but document prop's need to be changed each time for new docs which wastes a lot of time. Thanks
  17. xydrex

    Shock Spectrum

    There's a free 7 day trial. Get a work experience student to take screen shots for 7 days LOL.
  18. xydrex

    How to debug PYTHON.py before running script?

    You can run just segments of it at a time pasted straight into the python prompt in CAE.
  19. xydrex

    HELP ! URGENT ! Export deformed shape into any CAD format from ABAQUS

    What version of ABAQUS? I heard this is only possible for 6.6 onwards. May want to check this.
  20. xydrex

    regarding damping

    Is there any chance of you being able to test the part on its own & suspend it in free-free conditions? That way you can get a true FRF.
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