27 mm is really good! So if I would use it for my project (U-bracket for the wheel and motor) there would be around 30-31 mm under the deck for the caster base… the deck is 8mm? that leaves about 10 - 15 mm of slipring sticking out of the decks topside.
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How do you plan to attach the U-bracket to the baseplate/bearing in that case?
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I would make a square plate with a tube welded on it and bolt it to the U-bracket. Or weld te tube directly on the bracket (as in the picture I made). Then bolt it in the bearing block and put a capsule slipring inside.
However… First I’m building the upgraded “bigwheel” SBX with the SR360’s I’ve got (and hope it wil be a good ride 
… haha). A selfmade caster base would be a next phase…
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This is the design I made for the sr360’s… there ordered in stainless steel. Hope to have them in 2 weeks.
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I’m down to 157 mm. Think that’s probably low as it gets.
Here’s an updated version of the one-arm caster with belt drive.
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Dropping the useless spherical bearing and made a simple base plate design instead with straight walls.
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Thanx for the heads up! 
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This is a good oppertunity to design a nice bearing block 
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In the process of designing a enclosure to use on top of the 87cm freebord deck. Maximum I can/ want to use is about 400x210x40mm… I’ve done my homework but I’m still a NOOB in esk8 electronics. This week the stormcore I’ve ordered is comming. Then gonna fit it in the printed enclosure and check how much space is left for the battery… I’m hoping for a 12sP3 P42a molicel but I’ll settle with 12SP2 if this doesn’t fit.
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I was kinda thinking if you want to jerry rig these super cheap “KFL007” bearing blocks yes glue could work but I would sandwich some plates top and bottom of the bearing outer race, or maybe just bolts and washers on the two sides could affix it well enough. The forces on my middle suspension castor designs are a lot lower than using it for two powered castor classic designs, just saying.
Funny because either way if you go 2P you will be happy you have a lightweight board, or it you go 3P you will be happy with the long range/power. Gotta love those kinds of tradeoffs.
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Not going back to bad bearing land. Making the easiest bearing base that I could think of, 60x60x15 mm aluminum with a 13 mm, 55 ODM and 30 ID ball bearing. With this one I also gain a few mm for the height ;D
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The lower the better! 
That looks really awesome, the 5X big wheel setup!
Yeah really cool! It needs some correction for the rocker… printing 2,5 cm riserpads for under the 5x trucks as we speak.
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I was wondering on how you plan to make the bearing block? Do you have a cnc to use or do you print it first with a 3d printer and order it in aluminium later?
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Yes, I have my own small CNC machine to make the bearing block. It makes prototyping a lot faster then to wait for a CNC shop to make it for you.
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