2 stroke cones from a simple cone layout program

[fredbcj]

i was asked to make some expansion chambers to other peoples design a few years ago, once you have measured and drawn your original pipe ,then you can do any alterations (like take 30mm out the header,make the belly narrower,ect ) always handier if the bikes in front of you ,i cant work everything out  so i used  http://download.cnet.com/Cone-Layout/3000-6677_4-10551691.html ,same as anything the more accurate your drawing the better the info you put in, basic is inlet dia and angle ,centre length ,exit dia and angle ,once you make one bit you can save it to a dxf file for any laser cutting firm or print out a paper template and superimpose it on the sheet you need to cut ,the hardest  part is keeping track of the bits and marking parts before fabrication ,sharpies are better than sticky labels ,t250 was handcut and rolled and brazed before i had a tig welder ,kr pipes was coppied from jim lomas pipes then adapted (more under the motor,dont burn the fairing,developed for 35mm carbs ) and laser cut at a old firm i used to work for ,if you can picture it in your mind it can be made,

 

[Swirl]

Some jigsaw that

[vizman]

@fredbcj...welcome, please take 5 minutes to R.T.F.R.

[fredbcj]

i dont know what  rtfr means,I was on the old site and the one before 

Edited July 15, 2017 by fredbcj
i did`nt mean to swear ,

[teltwosheds]

Welcome back fred check. Read The F###ing Rules 

[teltwosheds]

Poxy predicted text

[fredbcj]

i was just about to take that photo down ,as i realised my error ;-)