®
M o d e l N o . M E - 6 9 8 9
E x p e r i m e n t 5 : R o l l e r C o a s t e r
31
3.
Place several slotted masses on the base of the structure to weigh it down.
4.
Add structures to help support the loop as illustrated.
5.
Use 13 track clips to attach the track to the structure. If the track has been cut into
two pieces, use the track coupler to rejoin them. Adjust the loop to be as circular
as possible. Adjust the section of the track approaching the loop so that it has no
convex curve (otherwise the car may jump off the track before it reaches the
loop).
6.
Attached the starter bracket to the track.
7.
Build a photogate bracket as illustrated (right) and attach it to the structure. Use
the clamp included with the photogate to attach the photogate to the axle.
8.
Attach the photogate flag to the car.
#1
#2
#2
#1
half-round
connector
half-round
connector
medium
axle
photogate and
included clamp
#3
