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  1. p27182

    Lookin to learn about engraving steel pipe at high speed with a laser

    Thanks folks! I've looked into their product lines and made request for contact with a applications engineer or tech rep. thanks again -Pat
  2. p27182

    Lookin to learn about engraving steel pipe at high speed with a laser

    Hello, I've been perusing some of these threads in the laser forums and it seems to me you guys really know your stuff! As for me, I have no experience with lasers, all I know is my dog really likes to chase the red dot. What I would like to do: Engrave/etch information into steel while it is...
  3. p27182

    Would love some help finding a material like Hydlar in tube form !

    Just got an email back from Bruce Dickinson - "Hydlar Z would also be difficult to extrude in this form. It is unlikely we would be successful. However we do produce rigid Hydlar Z rod which could be machined into tube depending on the diameter and length of tube that you need." any of you...
  4. p27182

    Would love some help finding a material like Hydlar in tube form !

    Thanks! pat- well, we would probably be willing to buy a lot of them and stock them for use later after sets start wearing out, but there would be 5 used at a time, untill they wear out, but I still don't think we'd be buying enough of them to make it worth it for the provider- and like you...
  5. p27182

    Would love some help finding a material like Hydlar in tube form !

    Thanks for the link! I've emailed them and I'm waiting to hear back from them for some datasheets. I'm unsure if ZM is the grade, but Hydlar ZM seems to have good wear resistance by the datasheets, forgive me I'm no materials guru, I'm more of an electronics guy (so thanks for the help!)...
  6. p27182

    Would love some help finding a material like Hydlar in tube form !

    Hello, let me know if you think this thread belongs elsewhere, but I think it's under the subject of polymers... possibly composites too though... Long story short, I'm on the hunt for a material that is more wear resistant than G10/FR4. My googling led me to find out about Hydlar, which is...
  7. p27182

    DIssapating 50HP (~38kW) of DC

    waross, so at slower speeds, would a regen drive just be dissapating the unusable power through internal resistors? or would it be dissapated through the process of just trying to spit it back onto the mains? thanks for the info -pat
  8. p27182

    DIssapating 50HP (~38kW) of DC

    Hey guys thanks again for all the ideas and suggestions! A new quote from resistorsonline.com came up to 1600 bones, so that'll likely be the route, unless I can get this GE regen DC motor drive working... I will certainly pitch the water heater idea as well, but I don't know how they'll feel...
  9. p27182

    DIssapating 50HP (~38kW) of DC

    Lionel- Just got off the phone with Baldor asking about your idea, I dont think the guy really understood what I was trying to say, so let me ask you- with a DC regen drive, as long as the drive is juicing up the field, any rotation of the shaft will spit juice back on the mains power right...
  10. p27182

    DIssapating 50HP (~38kW) of DC

    Thanks again for the info and ideas! So a resistor set up is gonna be 4g+ for just the bank, and on top of that the idea of just burning up the energy is inefficient. I'm going to try to propose the regen idea but I dont know if my supervisor is going to allow me the necessary amount of time...
  11. p27182

    DIssapating 50HP (~38kW) of DC

    Thanks for the ideas and suggestions! I'm looking into them now. I have another related question- I found heater cores here that are capable of dissapating 15kW, however they are 3phase... Couldn't I replace the DC generator with a 3phase 480v induction motor and use that as a generator...
  12. p27182

    DIssapating 50HP (~38kW) of DC

    Hey experts, I want to ask for some advice. (skip to the bottom to jump to the point) I'm currently tasked with finding a load bank for a dynamometer whose mechanical load is a 50hp DC generator. (The dyno is to be used testing big VFDs and whatnot). On a dyno we've already got hooked up and...

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