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  • Users: enfield
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  1. enfield

    Swing arm angle

    Hi there Can anyone help What effects on the bikes handling/traction does the change in Swing arm angle have Kind regards Stephen
  2. enfield

    Loose ball tolerances

    Does anyone know what sort of tolerances are applied to loose ball bearing in their manufacture , and if they use a tolerancing nummering system kind regard Stephen
  3. enfield

    Help with lisp

    Sorry all this has been been bought up before I know it but cant find the thread I want to draw a helix both a spring and a worm gear, Now I know you add a lisp to acad ( 2000 ) but where when and how ,,, Never had the need to use one till now Sorry if this goes over old ground Stephen
  4. enfield

    Worm gearing Quick question

    I have in front of me a worm set which is prone to stripping the gears on the worm gear ( machined into the shaft ) It is an oil pump drive from an old Enfield Motorcycle The shaft is made of a soft steel and its teeth ( worm gear ) appear to be fly cut into the shaft along the axis to the...
  5. enfield

    finding the load by working backwards

    Finding the load from a crack Hello there, Could some one with a bit more experience guide me here, Is it possible to arrive at a figure for loading from a cracked part. I have a poorly designed bracket , that has cracked, What I was thinking was if the crack was to to a shear failure , then...
  6. enfield

    View on a face

    Again This is related to my other post Is there any way I view a face of a 3d component , I had to rotate it then wanted it back so I could view the top face , but its slightly off, how can I view the top face square on I am sorry I do have the big book in front of me ,, but a chocolate...
  7. enfield

    3D drawing problem

    Sorry folks But I have a strange thing happening, I drew a componet in 3d , then What I do in layout I use soldraw etc. But when I am in model space and execute a view comand such as rotate or 3d view The object disappears and becomes a microscopic dot the the void known as model space I...
  8. enfield

    Secondary capacitance

    Hi there I am usually found lurking over in the mechanical section, but was asked a question the other day which is beyond me ] In a Spark igintion , coil points ignition system. What is secondary capacitance Someone was using this calculator and didnt know what the last term was...
  9. enfield

    wear rate coefficient

    Hi there I have posted before but couldnt get an answer. Desperately need a K valve ( wear co efficient) for Steel upon steel * sae 4140 against Sae 1040 - I not sure of the 1040, I am assuming here. I need to estimate the waer on a rotating rod The Hardness of the 4140 is in the region of...
  10. enfield

    wear rate coefficient

    Can anyone sugggest a good wear rate coefficient for boundry lubricated steel upon steel K Thank you in advance Stephen
  11. enfield

    Section hatch help

    I wonder if anyone can help. I drew a oil filter coner , ita an 1/2 circle about 50 mm dia, with a tube out of one side. When I used SECTION and made a sectional cut, It wouldnt hatch. I went into the hatch window clicked everything to no avail. I drew another cylinder in another drawing...
  12. enfield

    Oil aeration

    We have an oil aeration problem. A piston pump must draw aerated oil. Then it supplys that oil to a bearing. Trouble is the bearing isnt receiving enough oil. Due to the bubbly nature of the oil . We would like to reduce the amount of air in the oil before it enters the pump. Any Ideas anyone...
  13. enfield

    ductile iron as a bearing

    Can anyone help with this we have a bearing currently its scintered iron with a steel shaft the length/ dia ratio is 35mm/16mm The lubrication is scanty and the shaft if a reciprocating in nature, The lube temp is 90 degc tending to 120 sometimes. The oil used is 60W sae at approx 0.038...
  14. enfield

    oil shear

    I wonder if any one could help We are analysing a clutch, that has plate separation problems, Can anyone tell me or point me in the right direction as to oil shear. I want to know at at what distance from the surface the viscous drag be come close to nill...hopoe I phrased that right The...
  15. enfield

    Amco 45 ...65

    Does anyone have some info about Amco 45 and Amco 65 bronze..the yield points young modulus, hardness etc, cannot seem to find anything on the net Thank you in advance Stephen Japan
  16. enfield

    New to this forum Help with rendering Acad 2002

    Sorry folks , I am new to this list , let me intoduce my self , My name is Stephen , I design bits for motorcyles in particular..Royal Enfields, The problem I am having with Acad is that the background will not show through a hole in a rendered drawing ...It did then I possibly fiddled with...

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