This was a very easy print but it works about 50% of the time. I'm going to try modify it a little to get it 100%.
I had so much fun with this and kids love it.
My grandson and I are passionate marble people.
This is hands down the best ever. The two wheels
and 3 modules, with internal direction changers, create
multiple patterns, and the ability to switch off with other
modules allows infinite permutations. The wonderful
color options are an added bonus and the modules are
not only diverse and interesting, but cleverly named.
We got quick and helpful advice from email inquiries, and
once we ordered the units were made and sent quickley.
We consider this one of our all time best toy discoveries,
for children and adults.
Switch in one out of three kits I bought wads delivered broken. Notified the seller, but even after three email messages and Discord messages I received absolutely no reply or acknowledgement. Even cheap Chinese components are too expensive if they don't work, and ignoring buyers after $160 purchases reflects very poorly on the seller. Not coming back.
This is ingenious, interesting,
colorful, and interchangeable,
for endless permutations.
Lots of fun, continuing interest,
came quickly. Even the colors are