Teach Tech “Hydrobot Arm Kit”, Hydraulic Kit, STEM Building Toy for Kids 12+

This hydraulic arm is amazing! The quality is top notch, I’ve never been more satisfied with a “toy” purchase. My son and I spent so many good hours together building this and both of us enjoyed ourselves tremendously. Don’t worry about those posting negative reviews, they simply didn’t build something right or didn’t purge all the air out of the system. If done correctly it moves exactly like it should and works marvelously. My son spent his evening building blocks with it last night and every function works to its full potential. I cannot recommend this high enough. Your child will definitely need help as it’s more complicated than a typical model but the instructions are very clear and easy to follow just be prepared for it to take several nights to build.

I like to purchase Christmas gifts for my grandchildren ahead of time. I was really excited about this hydrobot arm kit. Well, it arrived today in its original packaging. In other words, it arrived in the toy box with two labels stuck smack in the middle of it. I was disappointed in the packaging. I was able to remove the labels but they still damaged some of the cardboard. Other than that, it looks like a nice project set, but for the expensive price, it should have been more carefully packaged.

Very cool hydraulic toy, my kid loves it. This definitely requires some parental help for assembly and sometimes the gripper doesn’t work because the extra cylinder in the gripper circuit needs a stronger spring. Also, after a couple weeks, some of the hydraulic lines popped off due to the tubing relaxing and not staying on the cylinders; I had to re-bleed some lines and epoxy the tubes in place. The instructions are clear and thorough. Overall, very cool, and a good value for the price.

I've got to say that the instructions thought of everything possible to include into the steps that might hang you up. But they have great pictures included along the way. If you like puzzles this is great but it's not a fast setup by any means.

My son and I tag-teamed and assembled it in an afternoon, though it requires patience and a steady hand to clip the burs off all the plastic parts. What’s great is that you can tell whoever designed this knew what they were doing and didn’t cut any corners (like a lot of cheap science sets). It’s sturdy and the hydraulics work really well. There’s an hydraulic GLOVE kit that I recommend getting first, then follow up with this for a perfect combo.