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. 2020 Nov 24;6(1):19–37. doi: 10.1007/s40964-020-00159-x

Fig. 6.

Fig. 6

Hands-free models made using SLS/PA12. a Materialise’s hands-free circular and rectangular door openers [46]. b Rectangular model usage. c Hands-free tools from SimonSolar2C [106] and bgiovanny [107] users from Thingiverse repository. d Tool being used for opening door