Back to the school time, we've got access to some interesting physics experiments concerning gravity, magnetic force or something else. Similiarly, this gyroscope shows us some scientific phenomenon of mechanics in a vivid way. Whatever you're a physics enthusiast or not, this item could be an eye-catching desk decoration. And guess what, it definitely is a faithful "friend" accompanying you to kill time when you feel boring and stay alone. My 8 years old son loves this gyroscope so much and I pretty much enjoy the time sitting around a desk and discussing who is the next to make it spin. I feel like you all would enjoy the sweet parent-children time somehow:-) Specifications: Brand: DjuiinoStar Color: Gold + Silver Material Spinning Bearing Rod & Wheel: H62 Brass (heavier material makes it spin stably on surface than any of other cheap ones) Top of rod: Durable Bearing Steel Base: Zinc alloy with electroplating Weight of gyroscope: 73g(2.57oz) Size of gyroscope: Wheel: 39.5x7mm/1.56"x0.28"(Dia.xThickness) Length of Spinning Bearing Rod: 45mm/1.77" Packing List: Motor Starter x1 Spinning Wheel x1 Base x1 *Note: No batteries included in the package, just need 2 Pcs AA batteries to operate it.
Q**E
Not great.
The little "nub" that stickes out on the bottom end of the shaft doesn't come out far enough, so the top wont work on the stand. The bottom sides of the shaft will hit the sides of the "dished out" part of the stand, causing everything to destabilize, knocking it over and sending the top in any given direction and off onto the floor.The shaft is hollow brass with a piece of steel inside to keep it rigid; but the steel is a loose fit and the shaft isn't straight. This leads to a fair amount of vibration and instability.The bearings used to hold onto it while spinning it up to speed were not smooth at all. Felt like they had sand in them.The hole in the shaft where the motor goes to spin the top quickly wore to a larger size. Therefore the motor couldn't make enough contact to spin the top very fast after a while.I replaced the center shaft and bearings with a shaft and bearings I had on hand from an old RC helicopter. This removed all of the vibration. I had to spin it up using a soft polishing wheel on a dremel since the shaft I used was solid. Doing so, it spins for 15 to 17 minutes.
L**I
Delightful toy for kids and adults.
The motor spins it up nice and fast. It spins for a long time. The smooth design keeps it safe. Lots of fun!
S**S
Super Unimpressed
Noth precision about this at all. I'm sending it back
TrustPilot
1 周前
1 个月前
