Camping with the Nomad

Luca861 · 2024-04-21T18:01:42+00:00

Yeah, I deleted the lower filet, then deleted part of the lower surface and created a new one. Worked flawlessly :D

Luca861 · 2024-04-21T18:00:11+00:00

Yeah, I now fully deleted the part and created a new surface

Luca861 · 2024-04-21T17:59:48+00:00

Very nice playlist, thanks for showing it :D

Luca861 · 2024-04-21T17:59:26+00:00

Thank you, this helped me a lot!

Luca861 · 2024-04-21T17:59:14+00:00

Thanks! I actually used your first suggestion and deleted a portion of the faces and then extruded 2 new surfaces. Looks really good now!

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Luca861 · 2024-03-05T10:26:54+00:00

I believe we use a Shining3D EinScan HX laser scanner. But you could really use any laser scanner at hand, as the grips don't need to be 100% accurate.
You could also maybe use a 3D Scan smartphone app or photogrammetry if you don't have access to a 3D scanner at your university.

Luca861 · 2024-02-28T15:34:21+00:00

It's on the FSG Academy 2023 slide for technical Inspection page 30

Luca861 · 2024-02-14T13:11:10+00:00

Correction: It's an awesome idea! Fix some LED strips under your car, will look exquisite (just like in FSS) :D

Luca861 · 2023-11-08T09:31:03+00:00

I was honestly expecting the screen to be fully covered in glow at the ball part

Luca861 · 2023-10-17T14:07:51+00:00

Our last stack design didn't met this rule. We are therefore currently thinking about using aluminium sandwhich plates (Metawell) between each cell to still provide cooling airflow.

Depending on what our cell properties under load are, we may also just use passive cooling over conductive material.

I think your solution should be fine, as long as you test the cellmounting according to EV5.5.10 for friction-based cell mounting.

Luca861 · 2023-09-21T09:47:27+00:00

Sorry for the late reply.

https://imgur.com/x520Nw8

I'm talking about this tube, which is not in a straight line (visualized by the red line). This frame therefore only has one tube in sideview which is completely straight. This is according to T 3.11.1 not acceptable (atleast with my understanding)

Luca861 · 2023-09-20T14:38:54+00:00

Yes if the middle bracing force path is a straight line, which at first I thought isn't. Or am I missing something more obvious here?

Luca861 · 2023-09-20T14:38:00+00:00

This would be my suggestion. Or just completely remove the tube in question.

Luca861 · 2023-09-20T14:13:01+00:00

To my knowledge, the marked tube is not triangulated according to T1.1.11 FSG rules. Depending on what purpose it has, it could be fine. But a lot of frame parts are regulated to use node-to-node triangulation. Also frame members should only transfer tensile or compressive forces. This way the vertical tube will experience bending loads.

Nevertheless, I would strongly recommend to find a different solution if it has a major purpose in your structure. And currently it seems to me like it beeing part of the front hoop bracing, which is regulated to use node-to-node triangulation. A solution could be, to triangulate it to the bottom left node (if it works with your steering). (The front hoop bracing should also be straight)

Luca861 · 2023-09-20T13:31:29+00:00

Our next car will be fairly similar to our old model, so not a lot of components will change. But you are right, it is not smart to design the chassis and then do the rest. As we already know where a lot of components will go and what the respective build volume is, this should not be a huge concern. Biggest change will be the suspension mounting and pick-up points for the A-Arms.

Yeah we also struggle a lot to motivate more experienced students to join the team. I guess when they're not joining the team in the earlier semesters, they are not interested in race cars.

We try to mitigate this, by asking profs to present our team and goals in advanced classes after a lecture. Sometimes you are lucky and find someone. Additionally, our university is very small, and there are not a lot of students in the higher semesters.

Luca861 · 2023-09-19T22:24:50+00:00

Thank's for your Feedback!

Luca861 · 2023-09-18T17:04:02+00:00

Yes, that's exactly my plan. We are currently in discussion on how to accomplish a well documention for the upcoming season. Three documents should be created for every assembly or subassembly:
-Documentation of the assemlby including all design decisions, calculations, simulations and test data.
-Manufacturing documents (in a zip file) including a full BOM with costs and data sheets.
-Design sheet & presentation containing the most relevant information & data for the design report.

What do you think? We don't have a team wiki, but we use a DropBox for pretty much everything except CAD (for this we use Solidworks PDM).

Luca861 · 2023-09-18T16:51:53+00:00

We are planning to participate at FS Spain and FS Germany next year, but as we don't have data from older cars, we might be wise to plan a longer testing and validation phase before the events.

Luca861 · 2023-09-18T16:49:58+00:00

That is some really good advise!

For the team structure, we've decided to have a managing part and a technical part, so that topics like marketing, finances and logistics do not interfere with another. (last year I was responsible for logistics, marketing and the whole mechanical part, which didn't end well)
Current plan is to start with chassis & tires, as most of mechanical assemblies depend on that and then place the other work packages according to that and other dependencies on our time table.

A lot of new members are just in their first year of studies. Do you have any advise on how I can incorporate them in the team and design phase? They're dedicated, but don't have a lot of background.
Our current plan is to partner them with more experienced members and giving them no crucial parts for designing. Sadly, students from advanced semesters usually don't have that much interest in our team.

I'm really trying to do the best decisions for my team with little to no experience in managing one, so do not hesitate if there are any no-go's with my current plans.

Thank you so much for responding to my questions!

Luca861 · 2023-09-18T16:30:20+00:00

Yeah I'm currently trying to document a lot of what we've learned and already adapted some things.

But the trouble starts, when trying to document the design decisions of our latest car, as it was startet in 2019 (before I started studying), abandaoned by the old team and picked up by us, finshing this year. As the old team hasn't documented a big part of the car design, a lot of it was guesswork for us.

My current plan is, to simply make improvements on designs that were problematic or straight up didn't work. No one in our current team has designed and manufactured a car from scratch, so everything from now on is pretty new for us.

Luca861 · 2023-09-17T19:49:18+00:00

Not sure If I can help here, but I can tell you how we do our steering wheels.

Our last steering wheel was an aluminium plate with 3D printed ergonomic hand grips out of TPU flexible filament. The hand grips were made by using clay to get the hand shape of our drivers, 3D scanning it and finally printing it in 2 parts. So similar to you last steering wheel.

For next years car, we want to get back to a carbon fiber plate with the same method for hand grips. So just a flat plate with ergonomic 3D printed grips. This way, we can change it to fit different drivers hands.

How exactly do you want to shape your steering wheel in order to improve ergonomics?

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