Search found 47 matches

by cuber
March 18th, 2019, 7:48 pm
Forum: Mission Possible C
Topic: Scores Discussion
Replies: 31
Views: 6689

Re: Scores Discussion

erico.vert wrote: I'm curious what task you didn't attempt
Peltier cells never arrived from amazon :cry: , so no endothermic.
by cuber
March 17th, 2019, 7:38 pm
Forum: Mousetrap Vehicle C
Topic: Stationary Dowel
Replies: 4
Views: 996

Re: Stationary Dowel

I used a moving dowel at two competitions run by the nationals event supervisor and had no issues.
by cuber
March 17th, 2019, 7:32 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 322
Views: 39857

Re: Mousetrap Vehicle C

I was lucky enough to see your run yesterday at the state competition and I just wanted to congratulate you on first place. The rack gear and moving dowel was a really good idea and you deserved that win. Thank you! After having a terrible first run, and running the setup clock down to the last sec...
by cuber
March 17th, 2019, 12:56 pm
Forum: Mousetrap Vehicle C
Topic: Car curves on the way back
Replies: 8
Views: 1359

Re: Car curves on the way back

I had this issue as well. Not entirely sure what caused it but adding a ~200g chunk of pewter to the back end fixed it for me. Unfortunately it also raised my times from ~10s to ~14s, but the accuracy gain was worth it. My hypothesis is that the jolt of the reversal lifts the back axel ever so sligh...
by cuber
March 17th, 2019, 12:38 pm
Forum: Mission Possible C
Topic: Scores Discussion
Replies: 31
Views: 6689

Re: Scores Discussion

1348 won New York State with an 85 second target. We had 9 tasks but no touches. I saw your device, it looked excellent! Incredibly compact. We placed 4th with a score of ~1100. 11 actions, 2 touches (one scoreable and one non scoreable) and our timer ran over. We ended up extending the height of o...
by cuber
January 20th, 2019, 4:07 pm
Forum: Mousetrap Vehicle C
Topic: Score Discussion
Replies: 97
Views: 20037

Re: Score Discussion

Top 2 scores at the Columbia invitational were ~35. The rest were 60+. Not looking so great up in NY.
by cuber
January 5th, 2019, 10:00 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 322
Views: 39857

Re: Mousetrap Vehicle C

• A rack and pinion was verry successful, and I came in second despite my alignment screw inexplicably coming loose, and the car veering 5cm. It simplifies the setup massively because you do not need to acomidate for initial angle. Can someone explain this for me please? I think I know what Cuber i...
by cuber
January 5th, 2019, 9:49 pm
Forum: Mousetrap Vehicle C
Topic: Materials and 3D Printing?
Replies: 14
Views: 2334

Re: Materials and 3D Printing?

If you have a larger budget, however, the Prusa i3 mk3 (or the earlier version, the Prusa i3 mk2) is a very good investment as well. The quality of the prints, (and, tbh the printer) is much better. We bought ours just after the mk3 was released since the mk2 price subsequently dropped. I haven't r...
by cuber
January 5th, 2019, 3:24 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 322
Views: 39857

Re: Mousetrap Vehicle C

So I just got back from my first competition, some important notes: • My car fits within the 40cm 2 box perpendicularly, but I measured it diagonally because i was cutting it close. The ES (who is the ES of the national competition) informed me that while this was currently accaptable, there verry l...
by cuber
January 5th, 2019, 2:32 pm
Forum: Mousetrap Vehicle C
Topic: Materials and 3D Printing?
Replies: 14
Views: 2334

Re: Materials and 3D Printing?

3d printing connectors, using cf rods to construct the chassis. Same, except I use 10mm aluminum extrusions. Still light, but even stiffer. I use PLA for the connectors, I could go stronger but i’ve found the stiffness of PLA is more desireable than toughness. Side note: we have the same event rost...

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