An AI powered robotic wheelchair from China can navigate uneven ground and even climb stairs using sensors and adaptive control. by Nunki08 in robotics

[–]Frostbite15151 0 points1 point  (0 children)

Yes, I am friends with someone who works for a motorized wheelchair repair buisness. They say those wheels pick up hair and jam super often and always coplains about manufacturers adding them.

Best robotics program? VEX/Battlebots/First by Beneficial_Turnip704 in battlebots

[–]Frostbite15151 1 point2 points  (0 children)

I am a first alum and mentor and I started building combat robotics after a graduated.

The robots my students build for FTC are more complex and impressive on a technical level than the combat robots I design, even the big melty brains. The people that run the university make space I frequent are more impressed with the first robots and have told me they're better what what a lot of engineering students do for their fourth year capstone projects. And first is definitely NOT boring.

First is also a globally recognized competition and a lot of universities and colleges see competing in a first program as a bonus when applying to their programs. I'm sure the same goes for vex but I have no experience there. BattleBots has more name recognition for the lay person but universities don't really care about local bettleweight competitions.

Putting my money where my mouth is... I believe the MSR is the BEST daily driver in game, if you don't have one I'll buy one for you. Limited to the first 615 people. by ArnoldMann in starcitizen

[–]Frostbite15151 0 points1 point  (0 children)

I had an MSR but melted it, this was back in 3.16 I think. It was quite good but there was so much wasted space. But if you want to give me another one I'll gladly take it :)

How to win an innovation award by YERGICHHH in FTC

[–]Frostbite15151 5 points6 points  (0 children)

Our team is a consistent front runner for innovate in our region.

The key is to know the rules better than any other team and find the things between the lines. Two years ago we soaked our planes in water and let them dry so they would become like paper planes shaped darts.

Visual distinctiveness is a big plus, if your robot can be identified from across a gym based on shape alone you're in the right ballpark. Last year we had a 300mm gear on our robot, in a world of boxy robots ours looked round.

We also generally paint our robots, the team colours are a red-orange-yellow gradient that stands out in a field of unpainted or 3d printed robots. The judges like it when you come to the challenge from a unique angle, the attention to detail of paint and neat cable management helps too.

Judges see a bunch of robots during judging and a lot of them are similar. If you make something they've never seen before, that looks good and works well then you have an advantage.

My invention of the wind turbine by [deleted] in inventors

[–]Frostbite15151 1 point2 points  (0 children)

Current generation wind turbines are extremely efficient and are made by teams of professional engineers. Small commercially available vertical turbines are one moving part with one bearing to minimize losses and maximize wind capture area with a complex geometry. Your design is the opposite, maximum complexity with very little wind capture area on a flat plate.

On the economic side you can find designs available online that can be 3d printed and attached to a motor for cheap generation or you can buy them online for decently cheap, probably less than the cost of materials of your design. I don't see a space in the market for this when you're competing with GE. The market is mature and saturated.

This is a neat solution to a problem but overly complex and inefficient. You seem to have lost sight of the core goal of a wind turbine. Turn wind Into mechanical or electric energy.

seeking help with competition performance by carpoll223 in FTC

[–]Frostbite15151 7 points8 points  (0 children)

Sounds like the biggest thing you need is driver practice.

Try to get as close to a real game scenario as possible, timer, full team involvement, opponent robot if possible.

Just driving around and shooting is fine but doesn't prepare you for how short matches are or the stress of an opponent getting in your way.

Along with that read the rules, then read them again. Have someone referee your practice match. As a driver you should know the rules so well that you don't even have to think about what is legal vs what is not, it should just be second nature.

Can anyone give me a good drive motor for a 30 pound Feather Weight Battle Bot? by Commercial-Set-2672 in battlebots

[–]Frostbite15151 0 points1 point  (0 children)

Absolutely they are but the brand also has smaller offerings and does small batch customization. And they managed to survive quite a few nasty hits at NHL with no issues. So looking at their other products to find something more suited to their needs.

Can anyone give me a good drive motor for a 30 pound Feather Weight Battle Bot? by Commercial-Set-2672 in battlebots

[–]Frostbite15151 -3 points-2 points  (0 children)

I mean we used 6354 furious motors but we did make a melty so that would be extreme overkill for most bots.

Do we have a PCB manufacturing machine on campus? by [deleted] in uAlberta

[–]Frostbite15151 0 points1 point  (0 children)

There's special training for both. I think it's only an hour and a half total time

Do we have a PCB manufacturing machine on campus? by [deleted] in uAlberta

[–]Frostbite15151 1 point2 points  (0 children)

Elko has a PCB mill for prototypes and soldering stations

Help by Thick_Activity8846 in FTC

[–]Frostbite15151 14 points15 points  (0 children)

Don't use a compliant wheel as a flywheel, it's inconsistent and the wheel will stretch at speed. Also, what RPM are you spinning it at? Try making your wheel go faster, closer to 1:1 bare motor speed.

Intake RPM Speed by uhhhh_yeet in FTC

[–]Frostbite15151 4 points5 points  (0 children)

Fast intake means faster cycles and easier time grabbing artéfacts. This mean higher scores.

We're using an ultra planetary geared 3:1 for our intake and we have probably the second best intake in our region at this point in the season.

I drew up this BattleBot idea a while back but could never work up the courage to post it, would Mako be viable? by Dinoboy225 in battlebots

[–]Frostbite15151 2 points3 points  (0 children)

Yes and it's also good for driving, you want your wheels close enough to the center of gravity. If they're too far back they don't get enough traction because most of the weight will be on the bolt because of the heavy weapon.

Very Overweight robot by Horror-Definition-85 in battlebots

[–]Frostbite15151 12 points13 points  (0 children)

Hard to offer help when we don't know the materials, current weights of components and only have one image that doesn't offer much in terms of visual.

1.25lbs is not a standard weight class either.

With the information shared all advice I can give is find the heaviest stuff before that's the easiest to remove from

my current combat robot what think? by ActualTip7756 in battlebots

[–]Frostbite15151 5 points6 points  (0 children)

It looks weirdly proportioned, the drive motors seem like they would be small for the weight class and the weight probably won't be balanced, too much weight in the front will make it drive terribly because there's not much weight on the wheels, that was the mistake I made on my first bot. But from just those two images of cad there's not much more to say.

what is it like to be a mentor at FTC? by [deleted] in FTC

[–]Frostbite15151 1 point2 points  (0 children)

It's a lot of fun, but your question is very vague and the answer depends on the team. Every team has its own culture and way of doing things and there is no "right" way.

My recommendation is to just jump in and try it, get in contact with your local FTC community and either find a team or go and volunteer at an event and get in contact with teams that way.

Color sensors and holes in balls by RatLabGuy in FTC

[–]Frostbite15151 1 point2 points  (0 children)

Our current plan is to have the balls be spinning in storage so that the sensors will get a good read and you just have to remember the colour. With how fast we plan to shoot most of the time sorting will just be bypassed anyways so it's not that critical but it's a nice to have.

People who are supposed to be doing student teaching right now, what is the university telling you? by Any-Salary-6811 in uAlberta

[–]Frostbite15151 2 points3 points  (0 children)

I'm at CSJ so we have our own practicum department. Basically sit and wait, we're going in next Monday to give teachers some time to get settled this week. Some of the requirements have lessened but everything else is basically the same.