looks pretty small sectional density wise. great job man!
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Wouldn't that be higher sectional density since the amount of car is the same with reduced cross sectional area?looks pretty small sectional density wise. great job man!
I'm diggin' the post apocalyptic camo look.Been very busy with work lately but got in a few hrs of sanding.
Almost ready for paint on the main body. The wheel cowl still has a long way to go.
View attachment 259927
Been working on several things lately with this car in CAD/3-D printing. Big thanks to @Tex Koder with an idea of what may have been wrong with my printer and he was right (dual Z-screws were not aligned.)
Out of the several things I am working on this little nugget is ready to show to you now. It is the rear arm/axle cover. There will be no rear upper a-arm (more on this later)
This 3D printed part is a 2 Piece design that allows it to be removable. Now that I have decided to run it with no upper arm, I'll have to fill in that hole in the body where the upper arm went
View attachment 260788
No Upper linkage (Zero, Zip, Zilch, Nada) on the rear suspension arms!!
That's taking streamlining to a whole 'nother level!
Try using the clear plastic lids from a croissant box or a regular milk jugs as mending plate material ,to cover that hole.
Cheap, Plentiful and Easy to cut & work with.
You can double or triple layer it to stiffen up the area too.
View attachment 260804
That would be awesome,***If all goes well with what I have built so far during testing....
I have been dreaming today about a later phase of the project where the airfoil arms will be dynamic wings that can be driven off a microcontroller and go through a range of motion depending on the throttle input or braking, aggressive angle of attack at lower speeds then reduce that angle when the throttle input is over 50% up till 100%. Then stand back up for aiding in braking.
I took a brief look at RC plane hinges today and don't like anything I had seen. Most were plastic. I see most of the large-scale plane guys make their own using a metal tube or part of the main wood structure with bushings. I could see the leverage of the airfoil providing 10 + lbs force at extremely high speeds, so I may just have to make something....
The hinge may be the easy part. I am a little unsure how I would drive the action. My initial thoughts were maybe a metal bar across with gears inside the airfoil. The only issue there is that the suspension is going to move so the gear mesh might not hold
I like this top shape the best for what I would need:
View attachment 262927
Yep that thing is sweet!That would be awesome,
Kind of like Travis Pastranas new Audi gymkhana car, with the active aero for braking
It's actually a Subaru GL Wagon dubbed "The Family Huckster". Block's the one with the Audi hoon machine ... and it's electric at that.That would be awesome,
Kind of like Travis Pastranas new Audi gymkhana car, with the active aero for braking
I'd research bellcranks and levers, much more likely to be able to mount the servo remotely and use a bit of rod and a bellcrank to pivot things upward. or put the dynamic downforce in the body voids instead of the arms (going to look like actual airplane arms at that point with all the electronic guts!)
Nailed it!Those look like the wheel weights for crawlers, BUT, I see that these were 3d printed and judging by your aero work for the a-arms, I'll say those are panels to smooth airflow behind the wheels.
Welp, that's my smart thing for the day. If you need me, I'll be in the corner drooling.Nailed it!
The plan is to run the car open wheel to see if it can set any records. I want to keep the air passing by the wheel and not trying to go inside of it.
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