Trouble with set screws!

[BrianG]

Wait a minute: do you have a flat spot on the motor shaft? If not, you should definitely grind one first. Just use a Dremel. Just be sure to cover the motor bearing with a baggy (just poke the shaft through the baggy), or use electrical/duct tape.

NVM, I just relooked at the pic and see that it's not the motor shaft. Duh. But still, grinding a slight flat spot where the set screw goes can help a LOT.

[redshift]

Uh wait.. are we talking about the roll pins?

[A RC Dude]

haha sweet! sounds like a great job! i'd like to find something similar when i get older (i'm 17 and looking to go into mechanical engineering). i love roller coasters and have ridden all the coasters in Carowinds (decent park on the NC and SC border about an hour away), Boush Guardens in VA, the universal parks in FL, dollywood in tennessee, six flags over georgia, sea world (the one coaster their....rode it 12 times in a single day making poses for the camera of course after a time or 2) and one or 2 other parks that i wasn't hardly old enough to remember. but i've yet to find a coaster too scarry for me not to love! haha

[JERRY2KONE]

The scariest ones are those that you can obviously see have not bee properly maintained. After working at "Islands of Adventure" for 6 years I got to see how well or not so well some parks do their maintenance. Some parks do as little maintenance as possible to save money. I have even seen some parks that do their annual overhauls and use the same hardware to put them back together, which is a definite NO NO. If you see rust of any kind building up anywhere on a vehicle or a track, don't ride the coaster. This is a hard sign/tell that they do not care about keeping the ride safe.

[A RC Dude]

yea, but luckaly i've yet to see anything like that