Alex Dark Posted August 15, 2013 Report Share Posted August 15, 2013 (edited) Hey, just a word of advice needed. Making a new front hub but as money's tight I'm Using the same spokes but changing the flange spacing, so how would I go about calculating the new flange diameter ( increasing flange distance so flange diameter has to increase. i don't really want to keep plugging numbers Into the dt Swiss calculator until it works but ill have to if there's no easy way Onza pro series front hub 28h laced to tryall h0lr front rim , radially laced 26" Any help would be appreciated Edited July 8, 2014 by Alex Dark Quote Link to comment Share on other sites More sharing options...
JD™ Posted August 15, 2013 Report Share Posted August 15, 2013 I'd cheat and draw it out to scale, using the rim spoke hole as the centre of a circle with a radius of the spoke length. Check out where it crosses an elongated flange at the wider width, et voila. Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted August 15, 2013 Report Share Posted August 15, 2013 (edited) 6 mm in flange distance will only change the spokes length by 1 mm,so you only would have to change spokes if youd go over 6mm edit:calculated a bit,10 mm distance change lenght by 1 Edited August 15, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
dezmtber Posted August 15, 2013 Report Share Posted August 15, 2013 Arnt all the erd and hub dimensions all in the descripions on tarty bikes website ? Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted August 15, 2013 Report Share Posted August 15, 2013 (edited) i think he wants to make his own hub for radial laced wheels its 1 mm in flange diameter per 10mm of flange distance,pretty easy isnt it? you can check that with any available spoke calculator in 1 min Edited August 15, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted August 15, 2013 Report Share Posted August 15, 2013 Arnt all the erd and hub dimensions all in the descripions on tarty bikes website ? Another useless post brought to you courtesy of DezMTBer 3 Quote Link to comment Share on other sites More sharing options...
N.Wood Posted August 15, 2013 Report Share Posted August 15, 2013 Don't you need to divide by the circle radius but multiply the flange denominator? Well that's how I've always done it. Quote Link to comment Share on other sites More sharing options...
dezmtber Posted August 15, 2013 Report Share Posted August 15, 2013 Another useless post brought to you courtesy of DezMTBer Yes very clever. I hadn't even realized he was actually machining a new hub. Is this for real ? You can design and machine your own hub but are struggling with working out dimensions to use the same spokes. Make one of these hubs for Luke while your at it will you. I am shure he would love it. Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted August 15, 2013 Report Share Posted August 15, 2013 Nah, I'm good for hubs. I'm also able to read more than the first 7 words of a post, so saw that Alex was Making a new front hub Quote Link to comment Share on other sites More sharing options...
dezmtber Posted August 15, 2013 Report Share Posted August 15, 2013 Another useless post brought to you courtesy of DezMTBer And posting this is helping or usefull ? The above quote from your post I belive to be nothing but slander or bullying online. I am not sour about it. It's just comments like that, that make this forum as usless as I find it a lot of the time. So Luke either come up with the answer to the question or don't bother 1 Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted August 15, 2013 Report Share Posted August 15, 2013 Sure thing - Alex, sling me the info for your current setup and what you're aiming to do with the flange on your new hub and I'll see what I can come up with The difference is my post, while not relevant to the original question, has the potential to lead to less of your constant spouting of incorrect/useless bullshit. Your post adds precisely nothing, much like the vast majority of bull that you put on TF. That said, it'd require you to actually read the post and take note, which you've already proved you're not capable of in this thread. Take it as slander or bullying if you want, either way you're a 'tard. 3 Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted August 15, 2013 Report Share Posted August 15, 2013 The basic arrangement for cross-laced spokes is thus: Spoke Length = sqrt[ (RRSP - (HSR * cos(SAA)))^2 + HFO^2 - (HSR * cos(SAA))^2 ] For radial (straight) spokes, the formula is simpler: Spoke Length = sqrt[ (RRSP - HSR)^2 + HFO^2 ] RRSP (Rim Radius plus Spoke Penetration) is half of the Effective Rim Diameter given by the manufacturer plus 2mm for the spoke's penetration into the nipple HSR (Hub Spoke Radius) is the radius from the hub center to the outermost edge of the spoke holes on the hub SAA (Spoke Anchor Angle) is the angle of from the hub spoke hole to rim hole that the spoke goes to. It depends upon the lacing pattern and which individual spoke you are calculating for. HFO (Hub Flange Offset) is the distance from the hub's flange to the lateral center of the wheel, based upon the dish of the wheel. For a front wheel, this will be the same on each side, but for a rear wheel, which has a dish to accommodate the rear gears, this is different for each side since the hub's own lateral center is different from the wheel's lateral center. 1 Quote Link to comment Share on other sites More sharing options...
dezmtber Posted August 16, 2013 Report Share Posted August 16, 2013 If the old onza pro hub measures up the same as the 2012 onza hubs. Which I hope they should be close if not the same. Old onza hub should measure dia, 30 And c-f 32 on both sides. Unless its a disc model. You could make it quite a lot wider. I used c-f 40 mm both sides And with that you will need a flange dia of 32 mm to use the same spokes. 257 mm spokes Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted August 16, 2013 Report Share Posted August 16, 2013 Get an excel calc then you can iterate to your heart's content: http://sheldonbrown.com/rinard/spocalc.htm 1 Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted August 16, 2013 Author Report Share Posted August 16, 2013 Thanks to Luke ads and ash, ads that's ideal thank you exactly what I was asking for And yes dez mtber I can machine and make a hub, I was simply asking for some advice or a shortcut to finding spoke lengths avoiding me trial and erroring it on dt Swiss calc Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted March 9, 2014 Author Report Share Posted March 9, 2014 Finally found some time and got some material sorted for the proto massively wide flange spacing , and a very thin wall hub shell. Half done, just waiting for some more time ha 1 Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted March 10, 2014 Author Report Share Posted March 10, 2014 1 Quote Link to comment Share on other sites More sharing options...
Perez Posted March 12, 2014 Report Share Posted March 12, 2014 Get the Sapim Spoke Calculator, it's so easy to use. I've done more than 2000 wheels with it, never failed. Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted July 7, 2014 Author Report Share Posted July 7, 2014 Machining the axle Axle assembly Grooving hub shell Finished product 6 Quote Link to comment Share on other sites More sharing options...
dann2707 Posted July 10, 2014 Report Share Posted July 10, 2014 Did I ever tell you that I want your babies? Just think how engineery they'd be! Looks epic dude top work. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 10, 2014 Report Share Posted July 10, 2014 Cool What is it and the axle made from?? Quote Link to comment Share on other sites More sharing options...
niconj Posted July 10, 2014 Report Share Posted July 10, 2014 Cool What is it and the axle made from?? Probably titanium. Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted July 11, 2014 Author Report Share Posted July 11, 2014 6 al 4v to bolts , 7075 for everything else Cheers guys! Just need to find a new front rim and I'll be sorted 2 Quote Link to comment Share on other sites More sharing options...
MartMini Posted July 11, 2014 Report Share Posted July 11, 2014 6 al 4v to bolts , 7075 for everything else Cheers guys!image.jpg Just need to find a new front rim and I'll be sorted Weight, and more importantly..... Wheres mine! Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted January 11, 2015 Author Report Share Posted January 11, 2015 (edited) So.... before i laced this up I went 24". Unhappily no 28h front 24 rims ( apart from bonz, which are hard to get hold of and suspiciously light. )..... as I need a non disc front wheel ; new hub time! Cue Mk2 design, this time lighter and carbon centre. Slightly lighter at a projected 73gr plus bolts ( little lighter than the Onza non disc 2014 ). Bearings , bolts , axle material, flange material and washer material have been sourced / saved from other projects, still to order my carbon and resin! Same basic design spec; very wide flange, strong flanges, ti bolts. Edited January 11, 2015 by Alex Dark 3 Quote Link to comment Share on other sites More sharing options...
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