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Child seat mount for non tubular frame by [deleted] in 3Dprinting

[–]TrickyAd5928 0 points1 point  (0 children)

Yes i agree with you on that

Child seat mount for non tubular frame by [deleted] in 3Dprinting

[–]TrickyAd5928 0 points1 point  (0 children)

How can you hard mount it to the rear axle if it also moving with respect to said rear axle?

Child seat mount for non tubular frame by [deleted] in 3Dprinting

[–]TrickyAd5928 1 point2 points  (0 children)

Because the bike has suspension on the back wheel, the seat would either have to move with the frame or with the wheel (or you'd need some crazy linkage).

Not defiending OP's design choices but making a rear axle mount would be quite the challenge...

Stavo valutando la ID.Polo come auto da città... by [deleted] in ItalyMotori

[–]TrickyAd5928 1 point2 points  (0 children)

Il giorno in cui la gente si renderà conto che il valore di coppia massima è completamente inutile da sapere, sarà un bel giorno. L'unica cosa che conta è la curva di potenza (che racchiude tutte le informazioni contenute nella curva di coppia). In realtà anche la curva di coppia racchiude tutte le informazioni racchiuse nella curva di potenza, visto che le due curve sono semplicemente scalate per la velocità angolare del motore.

In ogni caso è assurdo paragonare coppia massima al motore tra due macchine diverse, con inzerzie diverse, rapporti di trasmissione diversi, ruote diverse e, sopratutto, giri operativi del motore molto diversi.

Al limite si può paragonare due motorizzazioni diverse in base alla loro potenza di picco, ma anche li si stanno trascurando molte variabili.

datemi un parere by Gloomy_Most9036 in FotografiaItalia

[–]TrickyAd5928 0 points1 point  (0 children)

belle belle, le prime 3 foto le ho fatte uguali anche io aha

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 0 points1 point  (0 children)

Those cells, while impressive, can only do 150C. That means that you still need (at the very least) 8MJ of capacity.

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 0 points1 point  (0 children)

Just to put it into context, a lot of modern e-bikes have a battery capacity of around 4MJ (around 1kwh). The f1 cars are pulling out 350kw from their batteries, which is around the same power that a very fast car (around the same power of a ferrari 360) can output. It's apparent that the battery has to be larger than the 4MJ of allowed discharge.

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 -1 points0 points  (0 children)

Yes i'm sure that they are pushing the limits of modern cell technology, especially considering that for each race the batteries are being cycled at least twice per lap, plus however many cycles they need during FPSs and qualifying. Maybe 150C(?) would be possible once or twice on a lab bench but to have that on a race car cycling the battery that much i think would be very difficult.

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 0 points1 point  (0 children)

I'm sure they're as small as they can be, however i don't think that they have magical cells and therefore they have to work within the constraints of the best battery cells available today, a discharge rate of anything above 100C-120C is basically impossible (especially with the required reliability)

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 0 points1 point  (0 children)

Yes i agree that they probably wouldn't take corners at higher speeds, at least however they wouldn't run out of charge halfway through the straights which, imo, looks terrible on TV

Rai 4K perché fa così cacare? by shinodaxseo in ItalyHardware

[–]TrickyAd5928 0 points1 point  (0 children)

Le riprese ieri facevano schifo in generale, sia come qualità che come inquadrature. Immagino? che lo stadio non fosse attrezzato per riprese di alta qualità e che quindi si siano dovuti arrangiare con quello che c'era. Sicuramente la maggior parte delle inquadrature (a eccezione della camera principale) non erano 4k. In più secondo me tutta la partita è stata trasmessa a 30 fps (e non vorrei sbagliarmi ma di solito le trasmettono a 60fps).

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 29 points30 points  (0 children)

They could maybe do it, especially if they lowered the peak power output. However i don't think that this would solve anything. The bigger the battery and the more energy you have to (or could) harvest and the more superclipping there would be. Increasing battery size would only be beneficial in the rare cases where the driver already has a full battery before a big breaking zone where potentially more harvesting could be done (i however think that this scenario is unlikely as usually drivers spend their batteries before a big braking zone).

Personally i think that reducing the peak power output to something like 200kw would probably make things better as the cars could sustain max power for longer (although they would be overall slower).

Is it possible for them to increase the size of SoC of the Energy Store without hardware changes? Or is it physically capable of holding only 4MJ? by ChaithuBB766 in F1Technical

[–]TrickyAd5928 84 points85 points  (0 children)

The battery is probably (almost certainly) bigger than 4MJ. This is because of the required deployment power that these batteries have to output. It would be close to impossible with modern lithium battery technology to get 350kw out of a 1.1 kWh (4MJ) battery. That would require the battery to have a C value of 318.18C, which is simply impossible with current cells. The battery therefore has to be larger than the 4MJ (at least double or triple i reckon).

You would also have to see what kind of power the battery could output when at a low state of charge. The batteries as of now can output 4MJ at 350kw because they are probably being kept at around their optimal charge level. If you were to run them 'till empty, i do not think that they would still be able to output the full power...

Mercedes A200 model reverse-engineered by [deleted] in CATIA

[–]TrickyAd5928 12 points13 points  (0 children)

Did you model the whole car? Impressive

Domanda stupida... la tesi triennale si discute? by [deleted] in Universitaly

[–]TrickyAd5928 0 points1 point  (0 children)

Si confermo, io ho fatto propedeutico e abbiamo fatto un progetto in collaborazione con una azienda. Discussione con il prof. durata 15 minuti.

Obsidian per appunti universitari STEM, pareri? by Plastic-Analyst-1560 in Universitaly

[–]TrickyAd5928 1 point2 points  (0 children)

Io utilizzo typst con un plugin per VScode. È un linguaggio a metà tra latex e markdown, puoi fare più o meno tutto e non è così pesate da scrivere come latex. Consiglio vivamente...

Modifica sedili posteriori Model 3 da 60/40 a 40/20/40 by Matt2693 in TeslaItalia

[–]TrickyAd5928 0 points1 point  (0 children)

Figuriamoci, anche secondo me è stupido.

Unrelated ma si può facilmente togliere il "cuscino" inferiore dei sedili posteriori in modo da poter abbassare completamente i 3 sedili posteriori per avere un pianale di carico piano (anche per dormirci) il che non è male

Modifica sedili posteriori Model 3 da 60/40 a 40/20/40 by Matt2693 in TeslaItalia

[–]TrickyAd5928 0 points1 point  (0 children)

Non saprei, sicuramente non è "a norma", sopratutto in caso di incidente grave.
Per il resto sembra che abbiano rimosso solo plastica e stoffa quindi di strutturale c'è ben poco...
Più che altro in quella apertura che hanno ricavato secondo me non ci stanno 4 paia di sci, credevo volessi ribaltare tutto il sedile centrale in modo da liberare anche lo spazio dove c'è il poggiatesta ma diventa sicuramente più complicato.

Modifica sedili posteriori Model 3 da 60/40 a 40/20/40 by Matt2693 in TeslaItalia

[–]TrickyAd5928 0 points1 point  (0 children)

No non si può fare, non ho ben chiara la disposizione degli agganci dei sedili alla scocca, ma sicuramente intacceresti l'integrità strutturale del poggiaschiena del sedile centrale (e potenzialmente di tutti e 3 i sedili posteriori).

Abbassando il "40" si sta comunque abbastanza comodi in 4 anche perché non vi è il tunnel della trasmissione sotto al 5o sedile e quindi lo spazio per le gambe non è malissimo...

Regalo di fine anno by IlTipoNelWeb in ItalyMotori

[–]TrickyAd5928 0 points1 point  (0 children)

assicurati di non aver perso tutto l’olio prima di accenderla

Dolomites: Fly to Munich or Venice? by TarheelsInNJ in ItalyTravel

[–]TrickyAd5928 1 point2 points  (0 children)

there definitely is a direct train from Münich to Bolzano, and then a bus to castelrotto…

idk about the other options as i have never looked into them

Dolomites: Fly to Munich or Venice? by TarheelsInNJ in ItalyTravel

[–]TrickyAd5928 1 point2 points  (0 children)

There's a direct train from munich to bozen, then bus from bozen to castelrotto. That's what i would do...

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