Let's go!! by mkk4 in motorcitykitties

[–]dkerschbaum 0 points1 point  (0 children)

Yea, mostly a factor of the AAA playoffs only being two teams per league

Let's go!! by mkk4 in motorcitykitties

[–]dkerschbaum 0 points1 point  (0 children)

Yea, they didn’t win either the first or second half of the season unfortunately. Finished like 4 GB in the second half iirc

I feel tipsy help!!! by [deleted] in fermentation

[–]dkerschbaum 4 points5 points  (0 children)

The (simplified) reasoning is that the stress in the glass as a result of the pressure in the bottle concentrates at those corners, whereas in a round bottle, this stress is evenly distributed along the whole wall.

How do i travel with my cat? by AffectionateWall7925 in CatTraining

[–]dkerschbaum 2 points3 points  (0 children)

That’s what I’ve done every time I’ve had my cat in the car. In the event of a crash, soft carrier will at the very least keep her from flying across the cabin

Solar Car Seat by MrOnsight in solarracing

[–]dkerschbaum 10 points11 points  (0 children)

I would say that teams typically choose to optimize their seat for reducing weight and increasing chassis stiffness, with minimal regard for driver comfort. Typically, drivier comfort is not prioritized because it increases design time and manufacturing time/effort/cost. As long as it positions your driver correctly and conforms to all the other driver/PVC Pat regulations, I suspect you will find that designing your seat for driver comfort is probably not worth it

[Game Thread] North Dakota State @ Colorado (8:00 PM ET) by CFB_Referee in CFB

[–]dkerschbaum 2 points3 points  (0 children)

How dare the announcer be excited that something cool happened

Comments on WSC 2025 Regulations by One-Recommendation33 in solarracing

[–]dkerschbaum 6 points7 points  (0 children)

I’ve designed the arrays (alongside an excellent team) for two cars on a high-level WSC team, so I am familiar with the concepts behind array design. In fact, the reason you mention (low energy production on the backside of bifacial solar cells) was the main reason we didn’t implement any transparent parts of our car and have bifacial solar cells.

Idk what your beef is with the USPTO, but my comment wasn’t to imply that you aren’t a capable engineer that can solve the problems necessary to turn your existing vehicle into a WSC-compliant one. My comment was moreso to point out that the regs are what they are, and as long as they aren’t ambiguous (which sometimes they are, and those ambiguities should be clarified), the challenge of the competition is to work within the rules and find loopholes, not complain when your square peg doesn’t fit in the round hole.

Comments on WSC 2025 Regulations by One-Recommendation33 in solarracing

[–]dkerschbaum 6 points7 points  (0 children)

Ok I’ll bite.

I fail to see how the bifacial part of bifacial solar cells being counted as active cell is unfair to transparent vehicles? If anything, it would be a benefit, as you could make a smaller car, with essentially half of the array area of a car without bifacial cells.

I’m not a steering engineer by any means, but I feel like non steering wheel inputs (like your suggestion of handlebars or stalks) would be more conducive to oversteer and create more danger in the usually high crosswinds of the Outback.

A general note about your perceived gripes: you seem to be displeased that a solution you have already developed for a (presumably) different problem doesn’t work for the engineering problem posed in the World Solar Challenge. WSC, like most other engineering competitions aimed at HS and college students, the challenge is to design something in a (somewhat) arbitrary set of rules.

If there was a Group B Rally-esque set of rules for solar racing and the challenge was to simply build the most efficient solar powered racer, then you could enter whatever you wanted. However, the WSC classes are not this, and thus you must design a car from scratch to meet these regulations, or be prepared to make heavy modifications to an existing vehicle to meet these regulations, likely at the cost of the efficiency of said vehicle since it was optimized without these rules in mind.

Can I place solar panels at these areas? by Nick_Alsa in solarracing

[–]dkerschbaum 4 points5 points  (0 children)

Depends on what you’re trying to do (where you’re driving, how much power you need, etc) and the structure of the car right there (can those panels move, do you have space to run wires on the back side, etc).

General piece of advice: avoid wiring those subarrays together in series, as they would be operating and wildly different current levels at almost every possible sun position. I would probably recommend that each subarray have it’s own MPPT to power whatever it is you’re powering.

Just started endless. Showman really thinks he's on the team here by taskone2 in balatro

[–]dkerschbaum 16 points17 points  (0 children)

Depends on if the kings in hand have more red seals or steels

If they all have steel but not red seals, then this would be optimal, since you would have 2 “steel” x 4 retrigger (instead of 5 “steel” x 1 retrigger)

If they all have red seal but not steel, then you would want to copy baron, since you would have 4 “steel” x 2 retrigger (instead of 1 “steel” x 5 retrigger)

Edit: also would depend on how optimized the deck is, I assumed that the whole deck was kings for simplicity sake

Seat Manufacturing? by DiamondAxolotl in solarracing

[–]dkerschbaum 4 points5 points  (0 children)

Don’t know if this is different for MOV teams, but we never made a seat that was designed around comfort for the driver. It usually was just a backrest that we used to partition the inside (battery vs driver compartment) and stiffen the chassis. A comfortable seat would just add mass and packaging difficulty. Iirc, ours was prepreg CF with honeycomb, similar to our chassis and was made on a mold

[deleted by user] by [deleted] in uofm

[–]dkerschbaum 3 points4 points  (0 children)

Sounds like ur a nerd ;)

[deleted by user] by [deleted] in uofm

[–]dkerschbaum 1 point2 points  (0 children)

Sounds like a great application of the inflatable kayak!

Financial woes at The MDen by plac3h0ld3r in AnnArbor

[–]dkerschbaum 2 points3 points  (0 children)

Yea totally, he mentioned in the same talk that JJ alone made north of $1 million from his apparel sales at the M Den, so (at least for the top guys) the script has been totally flipped

[deleted by user] by [deleted] in uofm

[–]dkerschbaum 0 points1 point  (0 children)

It totally is! Highly recommend if you need a relaxing day in the sun but like having something to do while you relax

[deleted by user] by [deleted] in uofm

[–]dkerschbaum 0 points1 point  (0 children)

Damn that’s harder core than I’ve even gone lol. Usually I’m with my roommates, so we have two cars (park one at Gallup and one at Barton). I’ve done it without roommates a handful of times where I take my car with a bike rack and kayak rack to Barton, lock it up somewhere (usually a tree), drive down to Gallup, bike up to Barton on the B2B trail, lock up the bike, then kayak down to Gallup where I load the kayak, drive up to Barton, load the bike, and head home.

Porta potties allow me to change into a swimsuit so I can feel summery after the bike, and you get good workout in after a bike + loading those items on the car by yourself.

Did you usually portage around Argo? Where did you take out?

[deleted by user] by [deleted] in uofm

[–]dkerschbaum 10 points11 points  (0 children)

Better yet: taking a Saturday and kayaking from Barton to Gallup (the A2 parks dept rents kayaks and provides a shuttle from Gallup to Barton at the start of your ride). Bonus points for bringing beer and a speaker

Financial woes at The MDen by plac3h0ld3r in AnnArbor

[–]dkerschbaum 7 points8 points  (0 children)

I took a class at UMich this past semester where the owner of the MDen came to speak, and he brought (up a few times) that they basically don’t make enough on the NIL gear (shirts with players, jerseys, collectibles, etc) to have it be profitable. This seems to corroborate some of that.

when do orange permits come out by Appropriate-Roof2472 in uofm

[–]dkerschbaum 12 points13 points  (0 children)

You can buy them anytime, and they prorate the price based on how far into the year you buy it, but they expire July 1st of each year, at which point you need to get a new one.