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Recent content by JeffdlS

  1. JeffdlS

    WILL ENGINEERS REPLACE DOCTORS?

    Uppili11, I remember hearing back in my college days that expert systems would be used instead of doctors in the future. However, that has yet to come to fruition. And why is that? The cynic would say that the doctors don't want to share their information which could be placed in an expert...
  2. JeffdlS

    powder and pellets extrusion

    Gwen, It really depends on the materials of the pellets & powder. If they are compatible with each other, then there shouldn't be too much of a problem extruding both together. What materials are the components? Jeff
  3. JeffdlS

    cracked washing machine plastic tub

    The type of repair would really depend on the material. What might work for a PVC might not on HDPE. I don't know if the tub would have any indicator on it as to what it might be. You might want to check. Jeff
  4. JeffdlS

    Vacuum Lifts

    Tegefe, We currently have a vacuum lift on a jib crane. I'm not too sure what the max load is for this unit. But I don't think it'll rotate in all axises. The one we have costs $7500 so it might go up a bit more for the movement you may want. But I really couldn't say how much. Hope this...
  5. JeffdlS

    Plastic machines

    You can contact one of many suppliers as well as look them up on the internet. You'll want to get with them to tell them what you're wanting to make so they can determine which machine would be best. Here's a few names: Van Dorn Demag www.vandorndemag.com Milacron www.plastics.milacron.com...
  6. JeffdlS

    Plastic machines

    Well, to answer it in a truly engineer form: it depends. More than likely, those types of products are made by injection mold machines. Of course, that is considering that the items are hollow. If they aren't hollow, then they could be made several different ways. Hope that helps some B-)
  7. JeffdlS

    cleaning injection mold screws & barrels

    I've heard all types of methods for cleaning screws & barrels. One of the most interesting is to run kitty litter (unused, of course) through the machine. The granuals seem If you have brass scrapers, you can get the poly off as the screw is pushed out. Using some WD-40 will usually help get...
  8. JeffdlS

    Plant Simulation Software, what works?

    Aaron, It really depends on what you need. Does it need to contain 3-D graphics? How much data are you going to analyze? Will you be looking at a medium-to-high volume assemblies? Here are a few links to some other simulation software packages. AutoMod from Autosimulations Division of...
  9. JeffdlS

    Any case studies on time study at garment industry.

    Well, it really depends it what section of the garment industry you're talking about. Are you talking production of garments? The cleaning of garments? The repair of garments? Plus, what aspects do you want to know? Time studies? Ergonomics? Process flow? It really depends on what sector...
  10. JeffdlS

    What Type of Plastic for bearing?

    UHMW is pretty easy to machine and would most likely work in your situation. You should be able to find the material pretty readily available. Places such as Grainger, MSC, etc. will have the thickness that you'll need. Jeff de los Santos
  11. JeffdlS

    Nozzle cleaning techniques

    One thing you need to remember when putting any piece of equipment or part in an oven is to know to what temperature you can safely heat it to get the plastic off without damaging the part/piece of equipment. If you think cleaning a part is difficult, try explaining why you need to replace a...
  12. JeffdlS

    Career/Education Choice

    Well, I can tell you this, most engineers do not use Calculus out in the real world. Of course, I'm sure someone will pipe up and say that they do :-) As for the upper ME classes being harder, I think that most degrees have the lower classes that are harder, thus "weeding out" some...
  13. JeffdlS

    Lasers Vs. Waterjets

    Hi Juanito, I think one thing you need to consider is how much floor space do you have for such a machine. Both are quite capable at cutting. I would think it really depends on the energy consumption of each one. Also, would you be able to maintain this machine with your current maintenance...
  14. JeffdlS

    Ultrasonic cleaning, or not.

    Hi Rob, If your part is very large, then ultrasonic might not be the best idea. We've looked at utilizing ultrasonic cleaners and we've found that they'll do an excellent job on cleaning a part . . . but it had to be a relatively small part. In order to ultrasonically clean a part, it has to...
  15. JeffdlS

    chemical engineering cost estimation

    Hi Kanokkan, What type of equipment are you wanting to get cost estimations for? Anything in particular? JeffdlS
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