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  1. geoffthehammer

    Recommendations: SolidWorks Manuals

    We have just bought SW 2013 Professional. I have been on a couple of training courses at our reseller but can can anyone recommend a good SW instruction/reference book or books to keep on the desk? Geoff
  2. geoffthehammer

    Surface free energy

    Can anyone give me the Surface Free Energy value for Borosilicate glass 3.3 or point me in the right direction of a data source? Thanks in advance Geoff
  3. geoffthehammer

    316L DP1

    We have a component where we have specified 316L as the material for a pressing, the supplier has counter-specified the material as 316L DP1 in his quotation. Can anyone tell me what DP1 means?
  4. geoffthehammer

    Hydrophobic data for plastics

    I posted this originally in the materials engineering forum but then realised that this one is more appropriate, so apologies for double posting: Can anyone supply me with (or point me in the right direction for) comparative data regarding the hydrophobic/hydrophyllic characteristics of the...
  5. geoffthehammer

    heat absorbtion vs tube size

    We have a liquid flowing through a tube of given bore size. The tube is immersed in a heated liquid bath. If the volumetric flow rate through the tube remains constant, I need to compare the absorbtion of heat from the lquid in the bath through the tube wall into the flowing liquid for different...
  6. geoffthehammer

    Threaded insulator/thread liner

    I'm looking for a threaded component that can be screwed into a blind tapped hole. The component will also have an internal threaded hole so that a further component/screw can be screwed into the insert. The threaded component should be made from nylon/acetal/other plastic material so that it...
  7. geoffthehammer

    Which is the hardest

    I have been presented with two ceramic materials, one has a Vickers hardness of 1300 HV 500gram and the other is 2500 Hv 250gram. Which is the harder material?
  8. geoffthehammer

    Visible defect size in ceramic

    I'm not sure if this is the correct forum but none of the others seem to be right, so here goes: We buy in a ceramic cutting blade. The inspection criterion for the edge that we have agreed with the manufacturer is that there should be no visible defects along the cutting edge when viewed at...
  9. geoffthehammer

    System colors

    I'm using WF3 and am having problems with visibility of items against the background. Can someone tell me how to change the background colors in: 1. Sketcher 2. Detail drawings Thanks
  10. geoffthehammer

    Lens modelling

    I just modelled a magnifying lens. Set the material and appearance to a clear acrylic. When I orientate the model it doesn't work as a lens - ok, there's no problem with that. It wasn't a requirement but it occurred to me 'has anyone ever modelled a lens and made it seem optically realistic'...
  11. geoffthehammer

    Timing belt drive

    I am about to model a timing belt drive. Has anyone any suggestions regarding modelling the timing belt or how it could be represented on the assembly?
  12. geoffthehammer

    Questions about torque

    I am trying to devise a magnetic clamp/brake based on the same principles used in magnetic dial indicator bases (and as shown in wikipedia). The magnet would be approx 30mm diameter and 18/20mm across flats by approximately 45mm long. The steel/brass/steel block will be about 40mm square by 50mm...
  13. geoffthehammer

    Vibration measurement

    I have a 24" x 18" cast iron surface plate mounted on a bench using soft rubber pads. Bolted to the surface plate is a piece of equipment, part of which vibrates horizontally at amplitudes up to +/- 1.25mm (adjustable)and frequencies between 20 and 120Hz (adjustable). The vibrating mass is...
  14. geoffthehammer

    Rolling sheet metal into a curve

    We have a piece of sheet aluminium 1.6mm thick. We have to punch/drill a series of holes in the piece and then roll it into a single direction curved shape with the holes around the curve. We will roll the sheet using a standard 3 roller machine. The chordal pitch of the holes is important. I...
  15. geoffthehammer

    Measuring straightness

    I have a straight edge approximately 38mm long by 20mm wide and 1mm thick. The straight edge is bevelled both sides and is believed to be better than +/- 3 microns for straightness (overall). Can anyone suggest how to measure the straightness to substantially better than 1 micron both for the...
  16. geoffthehammer

    Tolerancing problem

    I am drawing a pair of dovetail slideways (60 degree angles). This can be measured over (or between for the female half) balls or rollers. These will be made in batches of 100 pairs. The female half is considerably larger than the male because a bearing material will be 'cast in' during...
  17. geoffthehammer

    Aluminum wire

    I am looking for some insulated (enamelled) aluminum wire preferably self bonding. Temperature class is not important. Wire size in the range 0.5mm to 1.0mm diameter. Any suggesteions as to who might supply? Preferably ex-stock.
  18. geoffthehammer

    Tolerancing problem

    I am specifying a shaft that will be made in batches of 100. My shaft is 8 mm nom diameter. I want to put a reasonable size limit on the shaft (say f7). So far so good. The problem that arises is that although the actual diameter is relativley unimportant, the diameter of each individual shaft...
  19. geoffthehammer

    Config.pro problem

    I'm new to Pro Engineer and am teaching myself using Wildfire2 Personal Edition. I have created an assembly using different directories. I have written a search.pro file to locate the different directories. I have also changed the search_path_file in the config. pro to direct the search to my...
  20. geoffthehammer

    Laser cutting - heat affected zone

    We currently have som parts made from 304 stainless steel. These aparts are approximately 3mm thick. Our supplier has asked if he can supply them as laser cut (as opposed to having machined edges). I am concerened that the heat affected zone will show as a brown discolouration band around the...

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