I decided I needed to make a new bike for my son, he has had the Schwinn stingray for a few years and initially I made a mid-drive to add gears, but now it´s time for something new.. I bought an extra stingray for parts and started building a rear end. As I am outside US, sourcing a trike rear end is next to impossible at a reasonable cost, so I decided to build it from scratch, I started by drawing up the pieces I needed on paper. I work out of a very small shed( filled with bikes) and have neighbors all around me, so I need to pay attention not to piss anyone off using an angle grinder too much, or hammering away at something. My basic setup for modeling steel is
A hacksaw
A small drillpress
A even smaller lathe( unimat)
Files
So to business, first up the parts for the rear end:
Started by drilling 5mm holes around the edges and where the holes needs to be, using the drill press this can be done pretty accurately, and then taking a file to the pieces ending up with this
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]
then I started working on the bearing houses, cut out of steel pipe and turned down to fit on my small lathe so the edges are true and the bearings fit inside( took maybe 0,5mm of the inside so the bearing fit
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0225_zps30847ab3.jpg.html]
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]
I then started to work on the attachment to the frame, and I made some adjustments to the steel plates.. they turned out pretty good I think
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0256_zps80a585a1.jpg.html]
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]
And here is the first mockup..
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0264_zps8d6fb967.jpg.html]
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]
The steel plates are joined to the frame using crank bolts, it makes them almost flush with the material.. this is just to hold them in place, they will of course be tied down with the axel of the rear hub ( it will be an electric hub)
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0271-2_zps335ede2a.jpg.html]
[/URL
]
Next up is finalizing the axels, making hub flanges for them and getting the last of the bits and pieces made ready for welding.. I plan to put a disc brake on each wheel and to make a differential for the axels
Any thoughts or ideas are welcome
Reg
Flemming[/URL][/URL][/URL][/URL]
A hacksaw
A small drillpress
A even smaller lathe( unimat)
Files
So to business, first up the parts for the rear end:
Started by drilling 5mm holes around the edges and where the holes needs to be, using the drill press this can be done pretty accurately, and then taking a file to the pieces ending up with this
[/URL]
then I started working on the bearing houses, cut out of steel pipe and turned down to fit on my small lathe so the edges are true and the bearings fit inside( took maybe 0,5mm of the inside so the bearing fit
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0225_zps30847ab3.jpg.html]
[/URL]
I then started to work on the attachment to the frame, and I made some adjustments to the steel plates.. they turned out pretty good I think
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0256_zps80a585a1.jpg.html]
[/URL]
And here is the first mockup..
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0264_zps8d6fb967.jpg.html]
[/URL]
The steel plates are joined to the frame using crank bolts, it makes them almost flush with the material.. this is just to hold them in place, they will of course be tied down with the axel of the rear hub ( it will be an electric hub)
[URL=http://s194.photobucket.com/user/flemrasm/media/IMAG0271-2_zps335ede2a.jpg.html]
[/URL]
Next up is finalizing the axels, making hub flanges for them and getting the last of the bits and pieces made ready for welding.. I plan to put a disc brake on each wheel and to make a differential for the axels
Any thoughts or ideas are welcome
Reg
Flemming[/URL][/URL][/URL][/URL]
