Let's Make Robots!

Trata II - The destruction! (Thanks Jip!)

Moves faster than Trata, on snow and ice

Update: Thank you for asking me to make a jump with this, jip. Now both Trata and my camera are broke. (Last video) - But hey - Snow is melting, who needs Trata any more? Time to rebuild!

PS: Jumps with things that are driven on a high placed force makes ugly jumps!


I just wanted to play some with the original Trata, that I made the other day in 2 hours. I picked up some materials, and oops, I made a Trata II instead :)


I tested it in the evening, on hard snow, and it was very fast and fun! In winter time we don't get a lot of day/sunshine-time, so it is always a quest to find time to shoot video when it's not too dark (like on Trata I)

Next day / today, I was going to shoot a good video.. but we got like 30 CM of loose powder snow! And it is not made for that, it just falls through and get burried.

So there is only a pre-video for now, I have to wait for the weather to change, or the snow to settle a little..


Theory is this:

Below is shown where the point of gravity is. It is supposed to be way back. I want it to allmost stall / have the front very light, so it can take the roughher snow, and lift itself up.


If this should be too much, I have placed some sticks at the back to prevent it to flip completely over, and let the propeller hit the snow.


(Yes, the propeller is broka enyway on the pictures :) It was a late night test run, and happened because the servo fell off. Not enough hot glue! (And too few wirestrips)

Now, IF it should not lift itself over some pile of snow, I do not want elsectronics to dive in, so this upside-down deck was placed in the middle, as a "sledge". 






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what kind of materials did you use for the sledge part? the gray and white stuff/thingys.

humongous knitting needles !

(sold in that kind of shops / hobby stores)

would it work on water as well? like does it float?

I guess you'll have to wait for spring to find out. Good thing they got that global warming conference out of the way before all the snow this year hey? lol.

I am very sure this one will not float. Not as it is, however, but build can be rebuild :)

The first one can sail, I am sure!

Yes, it's ironic that Denmark should host a world wide climate conference, and completely make a mess out of it.. and get the hardest winther in many, many years :D

PS: Sorry about our prime minister, and the mess he made of the planet. He is not the one we elected, the real one got another jo as head of NATO, and then he just left us all the sudden, with this little fat and inkompetent guy as replacement! Quite unfortunate, if I may say so.

Cool! Can't wait for the video proper. Are you using an R/C receiver and speed control?

Yes, plain guts taken from a plane RC car, all included, also RC control!

Cant wait myself.. problem is I have to go to work when the sun is up! Must film in weekends :)

Long time no see a Fritsl bot  :)   Very inspiring as always!!

Snow looks cool, would love to have bit of it here in Portugal :)

Yer, sliding is just down your lane :)

yuor awesome


The heck with building robots, I wanna make a machine to steal Fritsl's creativity!!!!!!!