| 摘要 |
An additive fabrication apparatus with an efficient reversal mechanism to reverse the orientation of foil guiding rollers (4) is contemplated. To this end, according to an aspect, a foil guiding system comprising: a flexible foil guiding roller (4); and a bearing system (2, 20, 21, 22) arranged to bear said guiding roller (4), said bearing system (2, 20, 21, 22) comprised of end locking elements (7) axially locking to the roller (4); a bearing arrangement (2, 20, 21, 22) defining a bearing position having the roller curved in bearing engagement. The bearing arrangement (2, 20, 21, 22) engages with an outer face of said roller in a manner so as to thereby flex the roller between at least two bearing positions in conformity with a rolling direction. |
