Pitchcar big floppy loop (my approximation of PitchCar: Extension 7 – The Loop)
It's taken a few versions to get to a loop that I'm reasonably happy should work without having to do too many fine adjustments each time you set it up. (first revision had to be clamped in place with bullclips at specific locations)
A fair amount of assembly/gluing required.
IMPORTANT As you are gluing together the top and bottom halves of the end track sections, print these first and test before going any further as any difference in your bed levelling from a default z axis offset will be in effect "doubled". glue together and compare with a typical track section to see if you get a flush surface transition across the gap. if too low or high can always adjust z axis offset or place playing cards underneath to level gaps up. (I've printed this loop on two different printers and had a non-insignificant variation in height between the both of them). You'll also want to ensure you don't have any bed adhesion issues.
list of pieces to print (see diagrams and pics for more clarity)
Loop
Floppy_Track_middle (print 3 times)
Floppy_Track_END_BOTTOM (print 2 times)
Floppy_Track_END_TOP (print 2 times)
Floppy_track_connect2 (Print 2 times)
Support base
loop_support_left (or right) (print one side 2 times for straight loop, or one of each side for crossroads corner loop)
Loop_Base_support (print once)
Loop_Base_support_half_length (if needed to hold down outer sides)
Should be free standing but If the ends are lifting up can use some printed Floppy_Track_Base_support_half_length to slide into the outer sides and either weigh or tape them down.
For a corner loop through a crossroads section, you will need one left and one right support. Place these on the inside corners.
I store this flat to be safe. Has been kept standing for a few weeks without losing its shape though. Can even use it flat as it's close to the length of PitchCar: Extension 3 – Long Straights, with the benefit you can easily add bumps or changes in elevation as the track is floppy.
Best of luck!
Floppy_track_connect2.stl | 185.4KB | |
Floppy_Track_END_BOTTOM.stl | 213.8KB | |
Floppy_Track_END_TOP.stl | 445.0KB | |
Floppy_Track_middle.stl | 471.8KB | |
Loop_Base_support.stl | 684.0B | |
Loop_Base_support_half_length.stl | 684.0B | |
loop_support_left.stl | 8.2KB | |
loop_support_right.stl | 8.1KB |