This blend is obtained from an upright trip plus 3 additional ones, where each of the latter is a 90 degrees rotated copy of the first one, one wrt. each of the former's square face center's normal axes. I.e. just those squares of the first trip get blended out thereby.

Alternatively it can be viewed as a blend of 3 tutrips, when a pair of parallel triangles each gets oriented within all possible coinciding orientations. Here 2 of those each would blend out, while the third one re-inserts that triangle then just once each.

Incidence matrix

6 * | 2 1  2 0 | 1 2 2  original trip's vertices           [4,3,3,4,3/2]
* 6 | 0 0  2 1 | 0 2 1  wedge vertices of the added trips  [3,4,4]
----+----------+------
2 0 | 6 *  * * | 1 1 0  top edges of original trip
2 0 | * 3  * * | 0 0 2  lacing edges of original trip
1 1 | * * 12 * | 0 1 1  lacing edges of added trips
0 2 | * *  * 3 | 0 2 0  wedge edges of added trips
----+----------+------
3 0 | 3 0  0 0 | 2 * *  {3} of original trip
2 2 | 1 0  2 1 | * 6 *  {4} of added trips
2 1 | 0 1  2 0 | * * 6  {3} of added trips