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  1. revdode

    Poor Man's digitizer - Sketching over a Camera .jpg

    Again, I've not used this in solidedge. Another tip to add to the above is if perspective remains a problem you can correct for it in many popular graphics packages. To make this easier layout a full length X & Y reference scale (I used 8'x4' sheets of 2" square wire mesh) you can then tweak the...
  2. revdode

    Work Instructions, SOE's, SOP's, Build Instructions.

    Is perhaps the problem that you are using too much of Words facilities? I've used it, pagemaker and a custom application for instruction sheets and found that with word and pagemaker the problem was a tendency to tweak the layout because you can. The custom application I wrote myself in Delphi...
  3. revdode

    I don't want to work overtime!

    <i>Maybe I'm just weird b/c I don't want to commute and thus live close to work, within walking distance, don't want a giant house in the burbs and want three kids whom I don't expect to go to Ivy league unless THEY want to.</i> Ziggi You are not alone, although achieving this can prove...
  4. revdode

    Cutting Nylon MD

    Everything msandoval wrote PLUS Many plastics just should not be cut with a laser, the fumes they produce are toxic. Some laser manufacturers sell specialist extraction setups for these applications, they aren't cheap and the filter life (carbon or similar) can be short. I generally avoided...
  5. revdode

    How to purchase a CNC laser machine?

    Both machine selection and justification tend to depend on your business and local factors. For machines in the UK I would tend to stick with Trumpf, Bystronic, and LVD although this may not be relavant in your area. There are other good machines on the market but investigate the service and...
  6. revdode

    Pot bases - Laminating aluminium/copper and stainless steel

    This question is a little odd but perhaps one of you can help. A friend recently asked how cooking pot bases were made, the type which are a sandwich of aluminium and copper sometimes with a ferritic stainless steel layers on the bottom of a 18/10 stainless pot the base is then encapsulated...
  7. revdode

    Dimensions on Sheet Metal Parts

    Generally on flat patterns we only give overall sizes and a couple of easy to measure hole sizes to check cutter compensation where tight tolerances are required. If we use multiple cutting conditions on a part one measurable feature for each condition is dimensioned. Aside from that the profile...
  8. revdode

    File size limits

    I think you may be using the 2.4 kernel, from memory this only supports 2Gb although there were some patches to allow large file support. I believe 2.6 has support for large files, although I think it may still be a compile time option. Maybe a search through redhats support pages would indicate...
  9. revdode

    Radan laser software, is it good or not?

    I've used and still use Radan for 3D CAD and CAM (laser and punch). I've bought their product but I wouldn't describe myself as a big fan. The 3D CAD side is fast for modelling sheet metal, but hard work for assemblies or non sheet metal items. It really can't be compared with other modern 3D...
  10. revdode

    locate manufacturer of desktop laser engraving machine

    Although not strictly desktop Trumpf offer laser marking products. http://www.lasermarking.trumpf.com I've used their industrial lasers and have found them to be excellent although a little expensive.
  11. revdode

    MIG machine for aluminium. Cost?

    We bought two then an additional two of the fronius 2700 machines for aluminium signcases. We are fully welding mostly 3mm aluminium outer skins, stitch welding some 6mm RHS framing and some 6mm plate. The machines handled it all very well despite some really long runs (24m+ external seams in...
  12. revdode

    Scheduling software

    Try preactor http://www.preactor.com/ the lite version of their software is pretty good if you have relatively simple routes, it handles 1000 operations/stage in any schedule. Space can be modeled as a workcentre with finite capacity. It costs around £250, we were considering it as a checp...
  13. revdode

    Laser Cutting Quoting Software

    Hi can you give me more information on what you are looking for? Most CAD/CAM software can do simple profile calcs, some will also derive a time based on autotooling the profile. I'd check your CAM system first it may do all of what you need. In the past I've tended to use simple...
  14. revdode

    3D CAD system

    I've been looking for a while and haven't been able to find anything in the league of Inventor or Solid Works. There are a couple of useful if not fully featured programs around. http://www.varicad.com/ may do what you want. These is no shortage of 3D Kernels, ACIS, Parasolid and OpenCascade...
  15. revdode

    Laser Cutting s/s with plastic film on bottom (N2)

    We had a similar problem although ours was related to reducing handling damage rather than damage caused by moving the sheet over the table. We spent a lot of time on this and discussed it with our machine tool supplier. Sadly we did not come up with a satisfactory solution, although we did have...
  16. revdode

    Creating an NC program from a DXF or similar

    I haven't used in in anger but Camexpert looks like it may work. http://www.ribbonsoft.com/camexpert.html You can download a time limited trial and the purchase price is reasonable. While you are there Qcad is also worth a look as a basic but usable cross platform 2D CAD package.
  17. revdode

    is process modelling software available

    Apologies for the delayed response. We bought a DC system and so far have been delighted with the machine. Although I can't prove that it is directly related to the resonator technology the machine seems to produce a very stable cut at the top limits of the resonator. The downside so far is...
  18. revdode

    is process modelling software available

    AFAIK there are no process modelling tools for laser cutting, I had a pretty good dig around the net and at my local university when I was trying to answer my CO2/RFI question. Almost all the work on improving the process seems to be carried out through a process of trial and tweek usually by...
  19. revdode

    Welding estimates

    It depends what kind of work you are trying to estimate. There are pretty good tables available for most welding processes. In precision sheet metal work (oxymoron?) you generally find that the handling, assembly and location of parts, jigging etc. take a significant amount fo the total time...
  20. revdode

    Industrial CO2 Lasers. RF vs DC.

    Following up my original post with a few notes, these are my observations based on my experience of RF and now DC laser in the last four years. I've found the low power control of the DC to be poorer than that on the RF laser I've used in the past. This is only noticeable in extreme fine...

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