A bearded capuchin monkey places nuts in a stable position before striking them with a stone to crack them open, showing that monkeys use tactile cues to improve their use of tools.
https://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0056182
Citation: Fragaszy DM, Liu Q, Wright BW, Allen A, Brown CW, et al. (2013) Wild Bearded Capuchin Monkeys (Sapajus libidinosus) Strategically Place Nuts in a Stable Position during Nut-Cracking. PLoS ONE 8(2): e56182. doi:10.1371/journal.pone.0056182
Replacing the wearing parts on Festo cylinder DSBC, DSBF-C – this tutorial explains how it’s done.
Repair your Festo products quickly and easily with videos from service2see!
00:46 Dismantle cylinder
01:49 Remove old wearing parts
03:59 Clean components
05:16 Install new wearing parts
13:02 Assemble cylinder