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  1. shabba

    Propane Mixer Requirements

    Are you based in Australia? If so there is a company that can supply you a high performance gas setup...
  2. shabba

    HP gains from switch to electric cooling fans?

    Although there is little more to add with regard to 92xj's original question, except perhaps that no-one has mentioned possible reliability concerns, I thought it was worth mentioning that some automotive suppliers are looking seriously at moving more and more ancilliarys away from the FEAD in...
  3. shabba

    Prop Shaft Failure due to big angle of deflection..

    Oooh, tracks... Whats the torque transfer like? What I mean is, is the torque constant and smooth or does is peak up and down with bad reversals? I would imagine a metal track would be anything but smooth along a hard surface. I would imagine such vibration would play havoc with the spiders...
  4. shabba

    24V Charging System Voltage

    Usually vehicle elctronics here in Europe are rated at 32Vmax and 24V nominal. Bear in mind that the actual voltage can go down as well as up so design for a range of about 17-32 if the electronics are critical. (ie, need to be active when starting etc)
  5. shabba

    Stacked Plate Radiators

    I am far from an expert as you guys probably are, especially Des, but correct me if I am wrong in thinking that, a series of tubes has more surface area than a 'plate'? Furthermore, isn't it an advantage of modern style tube-type (for want of a better expression) rads that the tubes han be...
  6. shabba

    Ackerman & Steering Effort

    Yeah sorry, I thought I'd mentioned that but reading back I didn't. It is a solid beam axle with the hydraulic steering ram mounted along the beam of the axle. There is not really any justification for a full suspension model in my view. One; because we can't afford the time or expense, and...
  7. shabba

    role of shocks in heavy on-highway trucks

    Shocking! (sorry) What kind of trucks are these? What do they transport? Rigids or semis? Not that it matters really, but you (they) are asking for serious trouble. Bad shockers have a major affect on ride, and especially braking. The axles can vibrate enough under braking to cause the...
  8. shabba

    Prony brake design

    A 'Prony' brake Greg is basically a band brake. Brake horsepower is calculated by measuring the difference in tension on each side of the band to give work done, and relating it to motor speed to get power. Well that's the basic principle anyway... It's named after the guy who invented it, I...
  9. shabba

    role of shocks in heavy on-highway trucks

    Definitely need dampers. Air suspension systems can be designed with a certain degree of damping in the system by introducing a fluid and some complex valving, but I am unaware of any systems on HGV's on the road at the moment. Are you saying that your 'mechanics' are removing shockers from...
  10. shabba

    From a solid model to PS orthographic drawing

    Gotta say I'm with Mike on this one, it doesn't get much easier that solview/draw for ACAD IMO. Although Alex's way works lovely, you still have to mess about creating, aligning and scaling your VP's whereas soldraw is just bish-bash-bosh, 3 ortho views, justlikethat, haha. Plus with the...
  11. shabba

    Subtract function in 3D

    I've had this error before, it's a real pain in the arse. it usually occurs when the two objects have a complicated interface boundary. Where there are two edges not quite in line with each other, or if one or other of the shapes has had lots of ops performed on it. I think in your case, some...
  12. shabba

    Creating a tif image from AutoCAD/Getting good quality?

    Go to the Adobe website and download a PDF printer driver (for free), install it as a windows printer and use it through autocad to create PDFs. This is the cheapest way I know (cos it's free) [2thumbsup]
  13. shabba

    Rendering in 2D

    If you draw using regions you can apply shading and materials...
  14. shabba

    Multiline text in acad2000?

    ...or is the text direction set to vertical? You can check this in the properties box (ctrl+1). Make sure it's set to horiz (not by style).
  15. shabba

    Multiline text in acad2000?

    Is the txt frame changing shape in the drawing? Try selecting it and pulling the righthand side over with the blue grips.
  16. shabba

    Universal Joint setup and vibration

    I ASSUME you have sorted this problem by now, but will put in my 2penneth anyway. The *only* time you should have to adjust the phasing of your cardan joints is if the input and output shafts do not lie in the same plane. If this is the case, then the degree of phasing is the same as the angle...
  17. shabba

    MDT6 - AMNOTE (Help required)

    By default all your layout dimensions should be scaled to either '1' or paperspace. Your leaders should also be scaled to 1. However they are separate from each other re formatting. In the dialogue box for the hole note (and any text entry box) you can highlight the text and right click to...
  18. shabba

    MDT - Is it just me?

    Anyone had any trouble with mdt6 table driven parts from excel in office XP? Also is there a sure-fire way to use feature suppression to give varying features to a part AND THEN have the dimensions only appear on the layout when the particular features are active? Know what I mean? ie if I...
  19. shabba

    Centroid same as Center of Gravity?

    Oh, you're using Autocad mechanical not Desktop. You could load it into your mdt5 seat, convert the solids into 'parts' (amnew,p,select solid) then try the above, can't remember if this feature is in 5.0 though... In any case, for an assy of components of the same density, the centroid given...
  20. shabba

    Centroid same as Center of Gravity?

    In MDT6.0, go to Assembly-Analysis-Mass Properties Pick your assembly(ies), Use the dialogue box to set your units, set your co-ordinate system to either UCS or WCS, and set all your component materials and properties. Go to the results tab and press Calculate. This should give you...

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