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Amazon Prime Day 2021: Last chance on the best Raspberry Pi and 3D printer deals (Update: Expired)

For Amazon Prime Day 2021, here are the very best deals for robots, Raspberry Pi, Arduino, and electronic kits.

Update: Prime Day 2021 is done and dusted, so the deals below are no longer valid. Check out our ZDNet Recommends hub for a better look at the latest deals available -- including roundups of the best products for businesses and professionals. 

Welcome to a very fun hodgepodge of geek goodies on sale at Amazon for Prime Day. We cover a bunch of deals in this guide, including some good Raspberry Pi kit discounts and a really good price on some 3D printers.

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Look, we'll admit that the most desirable robot gadgets aren't on this list because they're not on sale for Prime Day 2021. But if you want to do a little virtual window shopping and come home with something you can put together and tinker with, we have a great little selection.

Oh, and if you're just getting started with Raspberry Pi making, here's a quick intro.

Well, folks, that's a wrap. Another Prime Day is spends its way into the history books. But remember, participating in Prime Day isn't just about launching Bezos into space. Think about it this way: if Amazon is allowed to acquire MGM, maybe, just maybe, we'll all get more Stargate episodes. Poor Eli is all the way out there by himself. Let's encourage Amazon to bring him home.

Official Creality Ender 5 Pro filament 3D printer

Save 36%


This is a Lightning Deal that begins on Tuesday 6/22/21 at 4:20PM PDT and ends on Tuesday 6/22/21 at 10:20PM PDT.

Now here's an interesting opportunity. This is the Ender 5, which has a more robust frame than the Ender 3. This version has an upgraded feed tube, which should allow filament to travel more smoothly. Is that a big deal? Yes, if you print a ton. Otherwise, it's just a nice to have on a good, solid printer.

ANYCUBIC Photon Mono Resin 3D Printer

Save 33%


This is a Lightning Deal that begins on Tuesday 6/22/21 at 5:45PM PDT and ends on Tuesday 6/22/21 at 11:45PM PDT.

This is the little brother of the Photo Mono X we showed you earlier. It's got a smaller build area, but it still has the monochrome display, which gives extended life and faster curing times. I've tested a number of ANYCUBIC products and been quite satisfied with them all.

LABISTS Raspberry Pi 3 B+ Starter Kit

Save 36%


This is a Lightning Deal that begins on Tuesday 6/22/21 at 2:50PM PDT and ends on Tuesday 6/22/21 at 8:50PM PDT.

Raspberry Pi boards alone are generally under $50, but when I buy them, I like to get them in kits like this because they include some heat sinks, a case, a power supply and even a micro SD card. For about $15-20 above the base board, the add-ons are a bargain and save you the hassle of trying to match components later.