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  1. ornerynorsk

    Draft in moulding

    We cannot even begin to offer you an suggestion unless we know the material and the process. You must understand that sand casting grey iron is a far different process than injection molding glass filled nylon, and thus, requires a different method to accomplish a certain design feature. While...
  2. ornerynorsk

    Draft in moulding

    As John2025 mentioned, we need to know the material and process before we can give useful suggestions. A drawing or sketch of the part would be equally helpful. It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  3. ornerynorsk

    Mechanism which perform two moving direction with only one cylinder.

    A six bar mechanism might be able to do what you are needing. Google is your friend. It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  4. ornerynorsk

    Batch No and Retail Price Printer attachment for an existing packing machine

    Assuming the sachet stock is roll-fed, can the printer be mounted inline between the roll and the fill station? It seems to me that you should realize much better quality of print and less potential problems printing empty. If you must have off-the-shelf bracketry, have you seen the 80/20...
  5. ornerynorsk

    Spherical radius

    Isn't "spherical radius" more or less self-explanatory??? If you section a 3D object that has spherical curvature into a 2D planar view, it is simply the radius of said curvature. It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  6. ornerynorsk

    G code loop program for 2 axis cnc

    Try replacing your M02 with an M30. It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  7. ornerynorsk

    Rifling Design - Machining Limitations

    You were right, Mike! Wow, that's a small bore. Helical broaching would be very difficult. Maybe EDM? It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  8. ornerynorsk

    Rifling Design - Machining Limitations

    After reading this several times, I think the OP meant to say "riffling" instead of rifling. As in baffling or windage tray ??? It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  9. ornerynorsk

    Anyone have success machining* NBR Rubber slabs into simple/clean shapes?

    Are you allowed an alternate material, such as urethane, which can be shop-cast more readily than nitrile? Machining anything elastomeric is a bit of a devil, and the waterjet and grinding are probably the 2 best methods for thick section, with knife cutting the best for thin section. It is...
  10. ornerynorsk

    Machining deflection

    I've used cerrocast to stabilize parts for machining before, but on a part this large it becomes impractical. Clamping at the bottom end and machining at the top end may still cause the material to present like a wet noodle to the cutting tool. Tough part, fixturing may be your best answer, I...
  11. ornerynorsk

    Machining deflection

    So what are we talking about for dimensions and material? It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  12. ornerynorsk

    Pocketing with finishing in complicated profiles

    Semantics, but this is profiling or "boss" cutting, not pocketing. With that out of the way, there are many possible ways to get interferences in CAM whilst still having actual correct cutter diameters and allowable clearances. For example, if you are cutting full depth, the CAM is seeing the...
  13. ornerynorsk

    draft angles with cylindrical corner radius

    Depends on how it is specified on the drawing or in the model. It can be either way, and is up to the designer to specify. Corner or edge treatments in that situation should not be left unspecified. It is better to have enough ideas for some of them to be wrong, than to be always right by...
  14. ornerynorsk

    single point thread rolling

    Ah, yes. "One pass", which is normally the case anyway. It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
  15. ornerynorsk

    single point thread rolling

    "I could not find any info" Then how have you come to the conclusion that it is a real process and it exists? I've been in manufacturing for going on 35 years now, a good many years of those spent in toolrooms and machine shops, and out of the many and varied processes that are in existence...
  16. ornerynorsk

    Trying to turn a sheetmetal shop to machine shop?

    The design, the process capability, and the shop capability must all 3 be in harmony. If you feel that the design fits the general capability of the processes that you have chosen, then it's a matter of finding a capable vendor. With you only alluding to "high tolerances", it can only be...
  17. ornerynorsk

    Antique Industrial Galore

    Wonderful stuff. Nowadays, museum pieces for all practical purposes, but someone could get a ton of enjoyment of doing a cleaning and restoration on them. I love the Ward turret lathe. It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas...
  18. ornerynorsk

    Minimum wall thickness of aluminum extrusion

    That's a pretty broad brush for someone to say that. I have a "widget" sitting on my desk done by an extruder less than 100 miles from me (Minnesota) that gets down to 0.7mm wall. Like mcgyvr said, there are a lot of factors at play. There are most definitely shops that will push the...
  19. ornerynorsk

    LONG REACH DRILL PRESS

    There are a number of straight line mechanisms more appropriate for maintaining position of a machine head than 4 bar linkage, Peaucellier's comes to mind. A little Googling around will give you some ideas. It is better to have enough ideas for some of them to be wrong, than to be always right...
  20. ornerynorsk

    Want to Change Water Cooled bearing to Non-Water cooled - Extreme duty and heat

    That's a great idea Metalfixer! It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.

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