Biking
Recumbent Trike – New Seat & ImprovementsNew!!

I have had the recumbent trike for a few years now. Returning from a ride and cranking up our steep driveway I heard a cracking noise and with each pedal stroke the seat raised up! Pulling over and checking the welds between the rear fork and longitudinal body tube had cracked. So it was time […]

Read more
3D Printing
3D Printing Nylon

One of my goals when building the printer was to be able to print nylon and other high temp materials. For the trike, I wanted to print some parts for the chain idlers in nylon. So I ordered some Taulman Bridge nylon filament in Black.  This is supposed to be one of the easier nylon […]

Read more
3D Printing
Recumbent trike – idlers and longer ride

The trike is now mostly done, but the drive train was giving me grief. The idlers were not working out and I replaced the rear cassette due to the chain skipping.  The previous owner of the components had beat the bike more than I initially thought with damage to the cassette and outer crank chain […]

Read more
Biking
Recumbent trike – Paint

So now I have striped the trike back down to the frame. There was more touch up welding and grinding going on. The Atomic Zombie website motto seems to be “weld, cuss, grind, repeat” and it fit my welding skill level. So after things got close, I fixed any questionable spots that appeared and finished […]

Read more
Biking
Recumbent Trike – Steering pull solved

The steering pulling to the right bothered me.  The 1.5 to 2 degree difference in the caster angles was there and it had to be the clue I needed. However, the angle readings were varying on each try but overall the right wheel had less caster than the left. I really did not want to […]

Read more
Biking
Recumbent trike front end work and test rides

The front derailleur needs a tube on which to mount. This ended up being a piece of water pipe that was bored out to a reasonable wall thickness. The pipe was then tacked in place on the bottom bracket as the derailleur range of motion was tested prior to final welding. The used front derailleur […]

Read more
Biking
Recumbent Trike cabling

Hmmm, One brake lever and two front brakes.  This needs a bit of work. I considered the dual brake line brake levers, but they don’t look exceptionally well made. I also considered dual hydraulic brakes, but I would still be stuck with the original piston in the grip and reduced braking power. Using caliper brakes […]

Read more
Biking
Recumbent trike handlebars

Looking at the upturned handlebars in the plans and the comments about twist grip shifters being hard to use, I was not surprised. You would naturally grip these thumbs up. You have to grip the shifter with your 2 smallest fingers against your palms.   Poor grip and leverage. Below is the photo of the […]

Read more
Biking
Recumbent trike brakes and seat

The trike is set up with disk brakes. The fronts are new Avid BB7 mechanical and the rear is a used Avid Juicy 5 hydraulic.  All have 160mm rotors. Mounting the brake assemblies requires fabricating some odd shaped pieces of steel to weld to the front wheel assembly and the rear fork. The easiest way […]

Read more
Biking
Recumbent trike front wheels

The fit-up and welding for the front wheels was the most taxing process in the build of the trike  by far. There are multiple factors to take into account when creating the front steering geometry.  The pivot point for the front wheels should be under the contact patch of the wheels. For the axles I […]

Read more