Not for prototypes of the bracket, but just to prototype the mold fit. i used just basic wedges and printed light pla full scale models to prototype and check fitment of the bracket itself. The light draft quality molds i did just to not commit to 36hrs of printing and 1.5kg of filament without actually seeing it come together irl. (Read as i was afraid of trashing a bunch of time because i forgot something)
Still waiting for it to fully cure but it’s getting hard as me at half cured
Was able to get the finish to 90% and the first clear coat on and it really pops the forged look
I did a little lever test before i spent the time polishing it just to see - even if it wasn’t fully cured i was excited and making bad decisions: so i put the front trucks on it and left the rear off and just jumped on it with my full weight. I was thinking break it now before i get too invested in it or too much time working on it.
Only the deck flexed, the bracket is as stiff as the truck base plate and has no movement or flex.
Don’t get all but hurt, no one knows what you are asking/contributing with the gpt filter. It cut out 100% of whatever you were trying to say. Your authentic self is way better than the ai filtered non content - even if you’re on the defensive and feeling surly it’s still way better and glad you decided to engage here. You don’t need to lie to kick it dude. Come have a chat minus the gpt
The inserts I installed in the mold before layup. They are the best easy ones i could find that also were also not to big to fit with the close tolerance at the truck side of the bracket with enough room that i could really wrap enough of the fiber around in the layup process. Some of the long fiber strands wrap them fully
Got the second bracket done and finished up, was going to use the deck to lever test… and the deck is still too flexible, ordered some triaxial and going to redo the top without the two layers of Kevlar - it doesn’t seem to have the compressive strength i want and having it bonded under the cf top layer just isn’t translating to the feel i want. Also the bond strength seems, lacking. Have to do my licensing CEUs so ill work on those and the foot hook clamp rework and prep for that in the interim
Boty win!?!? Thanks everyone appreciate the love - even though raspberry riot got my vote and i was sure it was gonna deservingly take the 1st spot.
Nailed the angle on the cf brackets, neg 5 puts the trucks at exactly flat and just a little lower than a flat drop through with the correction of the truck angle im going to pull the super lean stops and put the flat ones back to get some more of that articulation back.
Well deserved win my friend! This build is inspirational for sure, goes to show that a little determination and a lot of cash can amount to great things!!!
Your compression mold success has me a little itchy to revisit that whole process… i just need an idea for something to make
My biggest concern is the failure mode on the carbon fiber, generally it’s pretty catastrophic failure when it does go so i want to make sure it’s way way over built. Im certain i have the density and ratio locked for maximum strength but testing to failure in a critical structural component like this is more my style. I might need to use a steel bar instead of ply for lever testing - it’s cracking the 3/4” ply - or maybe i should just accept that as a success as it’s breaking my test device.
@andersonmottabr ill post up the stl files into the second post on here so they’ll be easy to find once i get home tonight
I have to say that I share the same concern as you. I bought a deck from Germany at a very good price. It is rated for up to 90 kg, and since I weigh 95 kg, I decided to reinforce it by adding two layers of carbon fiber on the top and bottom to increase its strength.
My build will use a 10s5p 18650 battery setup, as this board is intended mainly for casual cruising around the city. However, I am still a bit worried. If the deck fails or snaps, I could be in serious trouble. Although I rarely exceed 30 km/h, safety is still a big concern for me.
This is my first build, and I have no prior experience laminating carbon fiber, so I am learning everything from scratch. I was told that adding two layers of carbon fiber could increase the strength by at least 45 to 50 percent, but I have to admit I am still a little concerned about that claim.
Wish me luck, and thank you. I am looking forward to receiving the files.
P.S. If you could also share the method you used for the lights, especially if you implemented anything advanced like a brake light or an accelerometer based system, I would really appreciate it.
Absolutely, getting all the kiddos fed and I’ll break it all down for ya. As far as the carbon fiber skinning - get it super super clean. Sand to bare wood and use acetone to strip the surface oils then use isopropyl 70-90% to clean off the residue from the acetone. The better you prep the surface th easier it will be. Make a lint free/ dust free area to work and some kind of lint free cover - i made a cardboard hood to set on top of the work to completely cover the epoxy until it sets up and i sprayed th cardboard with gloss paint to lock all the fibers down - was a huge help keeping the surface from gathering dust. Then wet sanding with gentle pressure and 400+ grit to get the surface perfect
Yes, I’ve already done it. Cosmetically, it wasn’t perfect, but it was my first time working with carbon fiber. I have to be honest though, I was really happy with the final result. I followed most of your recommendations, but I wasn’t working in a dust-free environment, so that definitely affected the finish.
To be fair, I was more focused on strength than on the cosmetic aspect. Still, for my first attempt, I’m proud of how it turned out. Next time, I’ll try to improve the finish because I really love the texture and look of carbon fiber.
was gonna add them to the second post but im le tired and lazy, ill clean it up later
here is the tpu gasket for the led. then one that I cut to fit around the bracket. as well as some of the other cell spacer and the weld spacer final versions. added the bracket v6 with the neg 5 to the list incase anyone wants to play with it.
glued the 5mm led strip with silicone to the inside of the tpu gasket and soldered leads onto the ends and ran them in parallel to the controller I’m using. just a junky amazon cheepo with some presets. about to circle back to the led controller to get the ppm reactive effect a bit more effort but ill get the other details neated back up with the new bracket shape first.
So ya, the Kevlar was not a good choice, how about 3 layers of triaxial? Hurt my shoulder so im pausing on the final finish work for a bit until the doc says i can work on this stuff again but here are some pics i took:
With the forged brackets being so stiff the Kevlar layer had some slip in it where the inserts weren’t deep enough
Didn’t quite have enough compression on the fangs to press out all the extra epoxy as well as i wanted but it’s close enough that i can fix it with some extra top coat and finish work. This is where i had to stop my sanding - recoat - sanding - recoat cycle because of my shoulder. Probably this is the last sand i need to do before the final clean up, so im back to modeling. Refined the xt60 cover to add some pnwesk8 flavor and am using my new cad skills to do the front and rear bracket covers.
I really liked the red stripe in the front foot hook and charge port assembly but i think ill try to nail the spacing and make the stripes hit right at the deck this time around. Also thinking ill change how the foot hook actually interface and make it bolt to it with the inserts it came with - then i can also start trying different foot hook geometry as i am probably going to make a custom hook that is less adjustable and more plush
appreciate the love - even though raspberry riot got my vote and i was sure it was gonna deservingly take the 1st spot.
with the correction of the truck angle im going to pull the super lean stops and put the flat ones back to get some more of that articulation back.
