3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02

This thing is perfect and works great with a mixture of Pi2's and Pi3's, including enough space for my heatsinks! It looks fantastic on my desk and I absolutely love it!

Easy to assemble, well packaged, and sturdy. Perfect solution for storing your raspberry pi cluster. - Thick acrylics = sturdy - Packaged well Each acrylics were protected by vinyls to keep them scratch free during the shipping process - Tweezers The tweezer makes it so much easier when assembling using small parts - Organize case for small parts This was a pleasant surprise; great way to keep all my necessary parts in place - The pictured instruction for easy & simple assembling - Totally customizable I wanted to add more layers for my project; you could buy more to add layers to stack 4+ Highly recommend this product for anyone who has been looking for a perfect solution to store/stack raspberry pi cluster.

Arrived quickly and in perfect condition. This set looks great, instructions were clear, and very easy to assemble. Can't wait to use it!

I really like how well this is made, and that it comes with a little organizer box and tweezers for wrangling the various parts. What I wasn't ready for is that it's not that simple to get your Pi's in and out if you want to work on them or swap them around for whatever reason. If you need a "rack" that you will keep your devices in for a while, get this one. If you want to change them around frequently, don't.

This little gadget has made an unimaginable impact on the way my household shows off our gizmos. When a friend noticed the glaring lack of presentation in my otherwise marvelous home, he suggested the PiRack was exactly the fix. I thought what the hell, it’s only $30. Now I can’t imagine my home without it. Do yourself a favor and snag one before they’re gone, these puppies are hot to trot.

Mostly works as advertised except: 1. Pi zero can't go on bottom layer - additional hole is needed. Works for Pi 3. 2. My kit was one but short. It had an extra bolt, but that was no help. 3. The sticky feet fall off; they don't stick well.

Easy and fun to set up. My 5 year old had fun helping me. All the stand offs line up and love black screws-adds a nice finishing touch. My cluster looks great.

I was considering engineering my own stacking solution but I am really happy I went this route instead. The engineering is great on this stacking case. The top and bottom plates are nice and thick and the whole thing is really sturdy. I am really happy with this case.