3D Printed Hub for 6inch pneumatics on caliber trucks

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Are you going with printed wheel pulleys as well? I’m eager to try printing some pulleys in PETG or Nylon just to test the strength.

Btw, isn’t slotted screws the worst thing in the world to work with? Can’t count all the times I’ve jammed a screwdriver/powerbit into my fingers trying to tighten those bastards. I will assume that you didn’t have any others at hand at the moment :wink:

I already used a pulley made out of ABS for my skikes - going to do the same thing when I know that these hubs hold up.

Yeah they are. But I have nuts on the other side that I can fasten while I just need to hold the slotted screw. They are M5 50mm and you are right I did not have any other ones at hand. I also liked however that their head is slimmer than a hex one.

They seem to hold - inflated to 3.5 bars the hub seems to be solid. I jumped up and down on the board and everything stayed where it is supposed to stay :slight_smile:

If you want to test them I can upload them tomorrow to grabcad or thingiverse. Keep in mind that I have not ridden them motorized or in rough terrain though. No idea how long ABS hubs can last and what beating they can take.

Looks sick though - much tougher than the skinny skike wheels

Oh and wheelbite is an issue on my deck now.

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If you upload to thingiverse I will print in PCmax max and test…

Here are the files: https://grabcad.com/library/longboard-hub-for-6inch-pneumatic-wheels-1

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Awesome, and impressive that you can inflate to 50PSI. I’ve just ordered the tyres, same ones as you ordered, reckon I can replace my front 2 wheels when they come and try slamming them into some speed-bumps and off curbs

Have you considered making hubs for smaller wheel widths as well? I’m assuming the reduced rubber in contact with the ground will mean reduced friction, and therefore increase efficiency. That or go-faster stripes on the side :slight_smile:

Perhaps this tyre? (think it’s slimmer) https://www.aliexpress.com/item/6X1-1-4-Tire-Inner-TUBE-Bent-Valve-A-Folding-Bike-Electric-Gas-Scooter/32797333242.html?spm=2114.10010108.1000013.9.H0ygIa&scm=1007.13339.33317.0&pvid=6d9b2820-9572-4329-a241-42c9a228a204&tpp=1

Oh and Wheelbite is now going to do your head in, I’m waiting for what @mmaner does, as he’s choosing a deck with psychotillers new 6" billet wheels, so he’s going to have to tackle that problem (think he’s trying to use 195 Paris trucks) I had to faff around with trucks I don’t really like to get mine working without wheelbite, got a few ideas for the future though.

I gt my motor mounts yesterday, trying to mill the Paris 195’s to fit is bit of a pain. The flat spots on the hanger make it impossible to use a 3 jaw chuck, I need a small 4 jaw but don’t have one. I dropped off a hanger and mount to a machinist friend today, waiting to see what he comes up with.

I really don’t think bite is going to be an issue. I’m using 1/2in shock pads on a deck with pretty massive cutouts. I should have most of the components in by this weekend, I’ll dry fit everything and see how it looks then and update you guys.

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I am probably just going to make the cutouts larger

Would there be interest for 6in aluminum hubs for 8mm axles (skate trucks)? I can probably sell them for $130 shipped for a set including tires/tubes and $20 per pulley. It’d have to be group buy style to keep costs low.

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Would these tires fit the 3d printed hub? https://www.aliexpress.com/item/6x1-1-4-tyre-for-mini-scooter-with-butyl-inner-tube-good-quality-Pneu-6x1-25/32740915476.html?ws_ab_test=searchweb0_0,searchweb201602_3_10152_10065_10151_10068_10136_10137_10157_10060_10138_10155_10062_10156_10154_10056_10055_10054_10059_10099_10103_10102_10096_10148_10147_10052_10053_10142_10107_10050_10051_10172_10084_10083_10080_10082_10081_10110_10111_10112_10113_10114_10181_10182_10078_10079_10073_10070_10123_10124,searchweb201603_16,ppcSwitch_5&btsid=2ce02bcb-2759-4635-a3f5-28bd66fb74e7&algo_expid=cb8d8a8d-e82d-4f09-9041-abdf962f2df7-13&algo_pvid=cb8d8a8d-e82d-4f09-9041-abdf962f2df7

These are 1-1/4inch in width - the hubs were designed for the wider 2inch ones. It could work but I am not sure.

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Got the tyres quicker than i thought. Just waiting for the 3d printed parts now. Might be late next week I get them printed (i have to wait a while, but i don’t pay a penny so can’t complain). How are they holding up for you @Maxid?

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I am waiting for my pulleys to be printed. I kept the tires inflated on the hubs and so far all of them are holding up.

I’m planning on just replacing my 2 front tyres for testing. I can still use psychotiller hubs for the back powered ones.

Can you design pulleys then? Any experience with Fusion 360…As I can’t find a way of designing the teeth and it’s annoying me

I am using Inventor for my CAD. Pulleys are made via this: http://www.thingiverse.com/thing:16627

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I used that thingverse pulley creator, and got as far as creating the pulley in OpenSCAD, then I’d export it into fusion, but it always imports as something that I can’t alter (I wanted to punch some holes for bolts to go through, and maybe add/reduce the thickness in some places)

That inventor thing seems to cost money, think i’ll invest some more time in Fusion as it’s pretty good, and also free :slight_smile: (also I’ve found CAD ain’t that easy to learn, so I’m not enthusiastic about learning another program)

you need to convert the stl file made by OpenSCAD before you can use it in any CAD software. Inventor luckily has a conversion feature.

How’s the balance of them?