Matthew_Gibson Posted August 21, 2006 Report Share Posted August 21, 2006 (edited) Hey all! I'm starting sixth form when I go back, in September. I'm going to be making a booster. I just want you to have a look at a few designs I have done. They will be all done by the milling machine. So it will look pretty cool. well enough talk... ^^ bit bulky^^ ...I'm going to draw a few more up. The space between the frame bolts, on the drawing are 80-100mm spacing (centre-to-centre of bolt holes). Would that be okay? Thanks for looking! Matt! Edited August 21, 2006 by Matt Gibson Quote Link to comment Share on other sites More sharing options...
Burton Posted August 21, 2006 Report Share Posted August 21, 2006 You need to design a booster with really thick arches, so it eliminates all flex. Now go draw! Quote Link to comment Share on other sites More sharing options...
am4zin Posted August 21, 2006 Report Share Posted August 21, 2006 Have a look at this page, it might give you some ideas: Janek's Brake Booster ProjectOtherwise, if you base your design around the XTR booster shape you really can't go far wrong. Quote Link to comment Share on other sites More sharing options...
Heatsink Posted August 21, 2006 Report Share Posted August 21, 2006 I'd suggest adding more height to the top of the arch. If you hang a ruler off the edge of a table and clamp a portion horizontally with your hand and try and bend it, you have a similar loading situation to one leg of the booster upto the tip of the arch. Max stress is where you clamp it at the table, max displacement at the tip.In addition if you can incorporate a design where there is material concentrated on the inside and outside edges then this is the best place to resist the compressive and tensional stresses because they are at their maximum at the futhest distance from the centre line (the neutral axis). The material on the centre sees no stress so you can do away with this.Good luck!Steve Quote Link to comment Share on other sites More sharing options...
STEVE-0 Posted August 22, 2006 Report Share Posted August 22, 2006 Surely the lower down the top part of the booster the better because there will be less leverage for it to bend when u pull the brake and it will weigh less. You just have to mind your tyre clearance. Also try and avoid too much milling or drilling around corners because they are high stress areas but milling out middles around the bolt etc like steve said is a good ideaSteve Quote Link to comment Share on other sites More sharing options...
RR_Trials Posted August 22, 2006 Report Share Posted August 22, 2006 What did you use to draw those pictures or are they scanned in?BTW i like the 1st one if left blank like that because you could have some custom stickers made for it.Cheers,Rorz Quote Link to comment Share on other sites More sharing options...
Matthew_Gibson Posted August 22, 2006 Author Report Share Posted August 22, 2006 What did you use to draw those pictures or are they scanned in?BTW i like the 1st one if left blank like that because you could have some custom stickers made for it.Cheers,Rorz There done a really basic Turbo cad, Version 6 I think. I'm guna make the last one, but I'll need a few other ones to fill the folder up. It's not like I'm goignto use it, It will sit there and look pretty. I can show off and say "look what I made" I'm going to have to re-draw it for the programe we have a school. GAY!!!!!!! Quote Link to comment Share on other sites More sharing options...
RR_Trials Posted August 23, 2006 Report Share Posted August 23, 2006 Thankyou Do you no if that sort of thing is possible in PhotoShop as i just got it like a day ago Good Luck with re-drawing and makingCheers,Rorz Quote Link to comment Share on other sites More sharing options...
Matthew_Gibson Posted August 23, 2006 Author Report Share Posted August 23, 2006 Thankyou Do you no if that sort of thing is possible in PhotoShop as i just got it like a day ago Good Luck with re-drawing and makingCheers,RorzSure you could, but its how. I have no time to draw that on photoshop would take a few weeks. Them to alone took me about 30 mins to do.But yes it will be possible I think. Quote Link to comment Share on other sites More sharing options...
poopipe Posted August 23, 2006 Report Share Posted August 23, 2006 Thankyou Do you no if that sort of thing is possible in PhotoShop as i just got it like a day ago easy - use the vector drawing tools and it'll take a matter of minutes to rough out.but...you'll have problems making it to scale in photoshop because it just doesn't have the tools to make it easy (it's entirely possible but no easier than doing it on paper really). You really want a technical drawing or CAD package for this sort of thing because they have appropriate measuring tools and stuff and it'll be a shed load easier to make changes to anything you've made. Quote Link to comment Share on other sites More sharing options...
joe b Posted August 24, 2006 Report Share Posted August 24, 2006 I think they're good design's. However, the top idea looks a bit weak and wouldn't really stop much flex; i would, like Steve said, add some height to the top of the arch. This way, more flex will be eliminated .Cheers,Joe. Quote Link to comment Share on other sites More sharing options...
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