Master Links

[Capt. Quirk]

Chains main weakness is their master link. Installing the clip, so the open end of the clip is facing the direction of rotation, is a quick way to eject a master link clip as soon as it rubs against some part of the bot.

Improper installation of the clip leads to bending the clip and again increases the chance of loosing the clip.

Chain alignment is important

Chassis flex will also eject a chain.

A tight chain robs the motors of power and will require more power to spin the drive train.


If you use a chain, buy a pair of Snap-On "Duck-Bill" Pliers (basically a wide, flat version of a needle nose pliers) to install and remove your master clip. Replace your master clip often (if you are removing the clip often), Be sure your chain is aligned perfectly. Be sure there is about 3/8" to 5/8" of up & down play in the Chain (get in the habit of checking your chain after each use). Minimize frame flex. Make sure the chain can't rub on any parts.

Always install the open end of the clip facing the opposite direction of rotation and safety wire the master clip to the chain.

[Racer26]

1075 has had some experience wrecking chains using master links. We had chains custom made to the exact length we needed. I don't recall if we did it in house, or had a sponsor take care of it. Our drives only have one very short chain in them that can't translate itself very far anyway... the main reason we stopped using master links is there's no room for them in the latest design. Everything is very close tolerance.

[MrForbes]

Originally Posted by Capt. Quirk

....safety wire the master clip to the chain.

I'd like to see a picture of how to do this.