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Ultra sun cutter

Discussion in 'Other Builds' started by Daniel Stewart, Mar 9, 2020.

  1. Daniel Stewart

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    Daniel Stewart published a new build:

    Read more about this build...
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Totally possible to melt sand: checkout Markus Kayser's Solar Sinter



    Writeup and pictures: https://kayserworks.com/#/798817030644/

    He uses a big fresnel lens though to catch as much sunlight as possible
     
    MaryD and Mark Carew like this.
  3. Mark Carew

    Mark Carew OpenBuilds Team
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    Sounds like this is going to be a cool Build!
     
  4. Rob Taylor

    Rob Taylor Master
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    Sounds fun. Would be interesting to see a diagram and the power numbers through the transmission system.
     
  5. Daniel Stewart

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    If you look at the photo that's my rough draft
     

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  6. Daniel Stewart

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    This is updated by plane view
     

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  7. Daniel Stewart

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    Top view upper bottom part is next
     

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  8. Daniel Stewart

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    Last part any opinion I need some help I will give credit for people who helped me
     

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  9. Rob Taylor

    Rob Taylor Master
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    1) You need to change the "not" in your quote to "always"!

    2) Have you done the refraction calculations to determine what kind of light paths you're going to see in this setup at various wavelengths? I'm not sure two very high refractivity elements are necessarily going to work the way you anticipate.

    3) The number that's working against you is 1000W/m^2. There's a reason other sun-based projects use very large Fresnel lenses.

    4) To actually maintain accuracy with the system (especially with potentially quite slow cutting speeds) do you have a plan in place for solar tracking?
     
    #9 Rob Taylor, Mar 11, 2020
    Last edited: Mar 11, 2020
  10. Mark Carew

    Mark Carew OpenBuilds Team
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    @Rob Taylor right there is a lot to learn here!
    “I hate reality but it's still the best place to get a good steak.” woody :D
    @Daniel Stewart take some time to look though this read on building a solar printer. I think it will help you to dodge some of the difficulties from builds that have already taken place , and the lessons they learned from them.
    Put your vision to reality and lets see what comes to life! :thumbsup:
    Hope it helps
     
    Peter Van Der Walt likes this.
  11. Daniel Stewart

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    rob i intended to leave it there so anybody pay attention to it thank you for that lol
     

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