Ummagawd Botgrinder Grinderino 3.5" Freestyle Frame Kit
SKU: 35140448336

Ummagawd Botgrinder Grinderino 3.5" Freestyle Frame Kit

Sale price$40.46 Regular price$44.95
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Ummagawd Botgrinder Grinderino 3.5" Freestyle Frame KitIntroducing the Grinderino. If you love your Demibot, but wish you had one that's juuuust a little smaller, your wishes have been granted! When Botgrinder asked if we can make him a 3. 5" frame, he said he wants something just as good as the Demibot but in a smaller package. It took a bit of adjustment, but I think we hit the mark. As for flight controllers, this frame will fit a single board whoop style AIO, or a 20 x 20 stack. The rear of the frame

Introducing the Grinderino.

If you love your Demibot, but wish you had one that's juuuust a little smaller, your wishes have been granted!

When Botgrinder asked if we can make him a 3.5" frame, he said he wants something just as good as the Demibot but in a smaller package. It took a bit of adjustment, but I think we hit the mark. As for flight controllers, this frame will fit a single board whoop style AIO, or a 20 x 20 stack. The rear of the frame provides plenty of space to fit a VTX of your choice, and just the same, the front will accommodate any camera. We've provided motor mounting holes to fit our Ummagawd Aerolite 1605 3600kv motors, as well as a standard mounting pattern for any other motors you might like to run.

And if you were curious... Yes, this is less than 250g all up weight!

UPDATE: The Grinderino arms are now compatible with 9x9mm motor mounting!

You can find all the related parts in the Botgrinder Grinderino 3.5" Frame & Parts Collection.

Also check out all our 3"/3.5" Frames and the rest of our Ummagawd Products!

Specifications:

  • Arms: 4mm
  • Top Plate: 2mm
  • Bottom Plate: 2mm
  • Mid Plate: 2mm
  • Standoffs: 6mm OD 7075 Aluminum
  • FC Mounting: 20x20 and 25.5x25.5 (whoop style)
  • VTX Mounting: 20x20 and 25.5x25.5 (whoop style)
  • Frame Weight: 65g
  • Motor Mounting Pattern: 12mm x 12mm and 9mm x 9mm

Package Includes:

  • 1 x Top Plate
  • 4 x Arms
  • 1 x  Bottom Plate
  • 1 x Mid Plate (with press nuts)
  • 1 x Hardware Kit
  • 1 x Ummagrip Battery Pad
  • 2 x Battery Straps
  • 1 x Set of TPU FPV Camera Mounts

Downloads:

Grinderino Assembly Guide

 

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 35140448336

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    Angela C
    Dallas, US
    ★★★★★ 5
    The blue is perfect!
    Color: Navy Blue
    The best quality iPad cover I have ever had. And the blue is so pretty!!!! The keyboard synced quickly and has soft keys.
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    Reviewed in the United States on April 30, 2026
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    arisa
    Alexandria, US
    ★★★★★ 4
    Great quality case, keyboard doesn’t work as intended
    Color: Dark Cherry
    Case is fine and good quality but the keyboard doesn’t work as intended. Bluetooth connects great but the keyboard is formatted incorrectly. For example, when I try to use a dash, it puts an apostrophe instead. I have no idea how to reformat it myself. I’d love just a replacement keyboard
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    Reviewed in the United States on January 31, 2026
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    Mia Thacker
    Louisville, US
    ★★★★★ 5
    Worth it!
    Color: Pink, Color: Pink
    Great buy! Worth the money and the color is nice. The keyboard works, some buttons I haven’t figured out but for the most part it’s worth the purchase!
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    Reviewed in the United States on May 20, 2026
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    Ms Rene Butts
    Lake Worth, US
    ★★★★★ 5
    Nice colors
    Color: Yellow
    This was a perfect choice for my iPad. The color is very vibrant easy to put on and its sturdy will buy again in another color.
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    Reviewed in the United States on May 17, 2026
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    Bernie
    Phoenix, US
    ★★★★★ 5
    Keyboard is magnetic to cover so it doesn’t fall out
    Color: Pink
    Absolutely love this ! My iPad fits perfectly in this and the keyboard is touch sensitive which I like and the color combo on the keyboard makes it fun ! Definitely will recommend this
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    Reviewed in the United States on June 11, 2026

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