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Fless

HG P402 Sand Scorcher build

by Fless Aug 1, 2017
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salut
alors deja beau boulot .mais aurai tu les fusees en fichier stl ou 3d ..j en ai casse sur mon 8x8 et je voudrais en refaire.
merci

Hi! That looks super awesome! :D I wonder how the new C-Hubs increase the steering angle - could you may explain this to me? Thanks!

Robert

Thanks Robert!
I think it's not so much the knuckles itself increasing the steering angle, as the geometry is identical to the original except for 8 degrees of caster. The panhard link however gets rid of all the flex that is present in the original design, so more of the servo movement is actually used to turn the wheels instead of bending the linkage.

Ah I see! Thanks for your reply! :)
I only used the axles for a custom chassis with a Y-Link mount - it doesn't move while steering so I guess it wont help me that much, right?

Thanks! :)

If the Y-link works for you, then i'd say the originals would be fine. And more durable!
I just have bad experience with Y-links (also on my SCX10) and their ball joints popping out, so I like to get rid of them wherever i can :)

Thank you so much for this! Made a HUGE difference in my POS HG P402!
WHERE did you get that Bug Engine in the back?

I'm glad you like it! How do the C-hubs hold up for you? They were too weak for me so I printed them in stainless steel (yeah i'm one of those lucky guys).

The engine in the back is actually this subaru engine bij ericthepoolboy: https://www.thingiverse.com/thing:1643878

Subaru WRX EJ20 Boxer Engine Model - Fully Functioning

Actually, one Chub has a crack around the Kingpin hole. Good Epoxy is holding it so far... Maybe a little more "meat" around there, and maybe set it up to use Axial Bushings.

Thanks! I'm checking out that Engine now.

NICE JOB!!! I'm not using all of them (that might change if I decide to do a Bug!!). I am using the Chubs and 4-Link Mounts. Those are SO clever!!
(BTW, as a Retired Auto Technician, I KNOW that the increased Caster will increase high speed stability AND increase side hilling performance!)

I noticed you tried to send me a tip. That's too kind man! Anyways, I added my PayPal to my Thingiverse account now so i'm now actually able to recieve tips. Lol! :)

Thank you for the kind words! Glad you're enjoying the mentioned parts!

Have you tried running the factory shocks with the springs removed? Works great, articulates easily.

Great idea! I didn't spend any time on the stock shocks as a friend gave me these Axial shocks

Amazing cad skills. If you don't mind, can you share how you designed the c hub? The reason I'm asking is because of the many intricate curves and details in the part. Also, do you have the c hub factory design without the added caster angle? If so, could you please post it up on thingiverse for folks who wish to use it as a factory aftermarket replacement.

Keep up the good work, thanks a bunch.

That is too kind, thanks man!

To be fair, this was probably the least elegant design job I ever did! I took my calipers and try to mimic the original c-hubs as good as i could. The curves.. they were kind of a guess.. The rest is pretty much all basic extrudes, cuts, fillets...

I think CAD drawing is something anyone can do as long as you spend enough time and effort to learn all useful features in the software you're using.

Excellent guess work. You nailed it. The parts fit like a glove.

Fusion 360 is my cad program of choice. Are you using fusion?

I just recently switched over to fusion. All of this build was still done in SolidWorks.

I'm glad to hear the parts fit as well as they did for me!

Any chance you can share the file without the 8 degrees of caster? I have other hg p402 builds that could use the c hubs with the factory design. This would save me from having to buy factory replacements. I know it's asking a bit much but had to try.

Hmm fair question! I'll have to see if I can still modify the file, having uninstalled solidworks from my main PC etc. etc. I'll let you know (if i can ever find some more time to hobby :p )

I think these castered ones should work just fine on any build though