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  1. #1

    Ramps Vs. Melzi Boards

    When building a 3D printer, does anyone have any suggestions on using a Ramps board or a Melzi board? What are the benefits to each? It seems as though Ramps are used the majority of the time, but why?

  2. #2
    Technician
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    Simple, ramps are cheap. I picked up a ramps 1.4 + arduino + 5drivers + the LCD/SD card with click wheel for less than $50 shipped to my door. It also easier to repair a ramps if something smokes.

    And it looks like ramps has more options for future expansion.

  3. #3
    Super Moderator Roxy's Avatar
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    Why is probably because Ramps is older and more established. The Melzi board sort of feels like what the PrintrBoard was trying to do. (I have a PrintrBoard but wish I had a RAMPS setup)

    Jaguarking11, can you point us to where all that can be acquired for $50 ? I would seriously consider ordering a set of parts!

  4. #4
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    I have this one. http://www.aliexpress.com/item/1pcs-...802988898.html

    Hopefully that helps.

  5. #5
    Super Moderator Roxy's Avatar
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    Quote Originally Posted by jaguarking11 View Post
    I have this one. http://www.aliexpress.com/item/1pcs-...802988898.html

    Hopefully that helps.

    Thank You!!! That is a very good price! I'm going to order one.

  6. #6
    Technician paradiddle65's Avatar
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    Looks like a good deal as long as you can handle the lead time. Looks like it can take up to a month shipping from china, wowza

  7. #7
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    Took mine about 15 days to get to me. Not too bad for about 1/2 the price you pay for similar kit from an e-bay seller.

  8. #8
    Technologist Kingoddball's Avatar
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    Thanks jaguarking11 !!

  9. #9
    I would just like to say to anyone about to buy or build RAMPS 1.3/1.4 that the MOSFET for the heated bed has been poorly chosen. Best thing you can do is drop one of these in it's place IRLB3813PBF MOSFET, N CH, 30V, 190A, TO220. If you plan to have a heated bed you should definitely do this or have a serious heatsink and fan. Even with decent cooling the standard one will fail quickly due to heat stress. The replacement barely gets warm with or without a heatsink.
    Last edited by brainscan; 07-04-2014 at 04:07 PM. Reason: Spelling

  10. #10
    Super Moderator Roxy's Avatar
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    Quote Originally Posted by brainscan View Post
    I would just like to say to anyone about to buy or build RAMPS 1.3/1.4 that the MOSFET for the heated bed has been poorly chosen. Best thing you can do is drop one of these in it's place IRLB3813PBF MOSFET, N CH, 30V, 190A, TO220. If you plan to have a heated bed you should definitely do this or have a serious heatsink and fan. Even with decent cooling the standard one will fail quickly due to hear stress. The replacement barely gets warm with or without a heatsink.
    Another answer is to just use the MOSFET on the board to drive the coil of a relay. The relay won't take much current from the board, and can be switched on and off to keep the temperature where ever it needs to be.

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