I bought this for my father. He likes puzzles and everything wood. He's pretty excited to try out something so unusul. I like that this will keep him busy and think he'll like to show it off. Very intricate and cool looking.

As an engineer with 40 years' of product design and quality experience, I highly recommend this product. Who can resist gears, cams, and marbles going down multiple tracks? This product is well designed and laser cut to very tight tolerances. Most parts didn't need glue to stick together, although I glued mine for robustness. What a great product!

So fun for a family or individual. Water coloring the sheets first (don’t over-saturate) made it pop! Not as versatile as other building toys..

I bought this for my son for a Christmas gift! He and I love to sit around the tree and put these types of contraptions together!

This was a fun kit to assemble and although a few of the instructions were a bit vague it went together well. I liked that the majority of the parts had identification letters/numbers lased into them. I have assembled similar kits from other manufacturers that did not do this and IDing the parts was more difficult. A small detail but a help. The optional video instructions from ROKR I found almost useless.Despite that issue, after being assembled the machine worked like a champ. Smooth…

I had a lot of fun building this, but I'm the type of person that likes the attention to detail that is required for it. Amazingly 99% of the parts hold themselves together and do not require glue. The instructions had a lot of detail that made them easier to follow.Build Notes:1. take your time and sand the parts carefully, the smoother the better on the moving parts2. rubbing wax on the gears and sliding parts makes a world of difference when turning the handle3. for the rotating discs that…

My 11 year-old Grandson Loved It! He needed a bit of adult help, but is Very Good at assembling models.I highly recommend this Item. Everything yu need is included. I will purchase similar products from this company again.

My husband loved thisnut said he had to file the screw driver down because the metal was too high and wouldn't fit the pieces. After we fixed that it was perfect. He had a great time building and works great

All parts well labeled. Just a little sanding, using wax where needed and parts went together well. Ended up having to repair one part that broke and CA glued some other parts to provide more stability when done. Built with my 12 yr old son. In our case, he could figure out the picture instructions better and I provided the finger strength to push some parts together. (I'm 75 yr old) Was a lot of fun!

The laser cuts are nice and accurate. I have a good mechanical beakground, I found the kit difficult to assemble. After it’s together it takes some tweaking to get it working smoothly. The instructions are somewhat vague. Overall I enjoyed putting it together. You do need patience and some mechanical knowledge.

Very fun and interesting toy. Not for kids but my son enjoyed helping me put it together. My 3 year old dropped and broke it but it's pretty easy to glue back together.

10 year old son put this together. It is complicated to build but can be done by kids with a little adult help and by paying close attention to instructions.

This is a well made puzzle. The laser cuts were clean and complete. The layout of the parts and assembly instructions were well thought out to avoid breakage of the pieces both during pop-out and assembly. The wood varied in thickness depending on the strength requirements of the part, which again reflected the thought put into the puzzle. And the smallest parts, which had increase risk of breakage, had several spares to mitigate just that sort of problem. This was a great activity to do with…

I am amazed with the quality of this model kit. Nothing broke, everything fit. The Instructions are clear and detailed. It is sturdy and it works! I will order more kits from Robotime.

My daughter in law and son put this together and they enjoyed it very much. And my 3 year old grandson loves running it. Debra Henrie

I bought this as a gift for my dad. I love to spend time assembling models with him. The instructions were easy to follow and the product works great. We’ve done several wooden models like this over the years and they are time consuming but worth every minute. It’s been a year since we put it together and it still works great!

My brother and I built this in about 6 hours. After a few tweaks it runs great. I find a ball will get stuck in about two spots every onelce and a whole. All the pieces are very smooth. Love having it on my computer desk

Great self isolation project. Not too hard to put together. Definitely easier the second time. I liked it so much, I ordered the other 3 marble kits for the coming weeks.

This is the first time I've attempted to build a project like this and it took me about 8 hours to complete. Some of that time was met with frustration due to some errors in the instructions (another reviewer already mentioned the page 9 error). Some of that frustration was also due to my own mistakes (yeah you need to read the instructions carefully). The biggest issues I had was building the elevator/lift system. Those lifts have to be sanded and smoothed down really well for the system to…

This was my 6th wooden model assembly and was more difficult then I thought it would be. Broke several parts and I hadn't done that before. Directions were a little more difficult to follow then some other projects. Other than that, I enjoyed the project and really like Robotime models.