OUH I like to make walking robot but here in Finland smallest coin is 5 eur cent :(
Gyroman 4: Walking Gyroscope
A great demonstration of the gyroscopic effect.
In the contest Mechanical Marvels
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updated November 5, 2024
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This is a very well engineered print with excellent assembly instructions. However, getting it to work properly takes some fiddling & additional info in this area might be helpful.
First, it won’t work on a carpeted floor. It needs a smooth surface. Next my parts printed a bit loose for 4-40 screws. A bit of CA glue in the holes firmed that up. For example, the feet had too much play in them front snd back and it would sometimes fall on its face!
None of these quirks take away from such a great design that is sure to provide hours of entertainment but in my case this print didn’t just walk off the table. (no pun intended) Thanks for sharing such a fun, educational, print!
Just finished printing this, and it works great. I did make one change to the feet. I didn't like the time consuming effort required to thread a loop of TPU around the feet so I modified the design to open up the spacing for the TPU by just a little. Made all the difference in the world. I was able to weave the strand of TPU on the feet in about 3 minutes after making the change. Anyone wanting the stl of the foot, just let me know. Note: I used two rolls of uncirculate pennies I had acquired back in 1972. They were of various thicknesses. Found out that 12 worked in each slot better than the suggested 13.
Finally found the time to assemble this project. All working great, just need some rubber bands and fishing line. Thank you for the tip with the 3mm rod, worked a treat.
This new filament rocks ! I tried the gears contest's new spool on this beautiful model. Not so easy to launch, but it looks cool ! I modified the parallelogram to use print in place hinges instead of screws, I will publish the changes soon. Unfortunately, I broke one side on the first launch, I couldn't handle it firmly while pulling the string. I will think about that too.
I've printed the parts and am now assembling them but I'm having an issue with the bearings. My bar is 3.02mm but I have to use a mallet to get it into the bearings. Is this just poor quality bearings? Should it be an easy fit?
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@SnowcrashGB_1735899 Oh, the problem is the fit between the rod and bearing. The bearings are probably OK, but the tolerances on rod stock are all over the place. You can buy specially toleranced rod for bearing shafts, but that may be expensive. If I've got cheap rod that is a hair too large, I'll put it in a drill and sand the diameter down with emory paper until the bearing just slide on. (edited)
@LoboCNC Thanks for the tip, will try that and see how I get on.
