Une version personnalisée dehttp://www.thingiverse.com/thing:41274

Ça convient pour ce potentiomètre :
www.robotshop.com/productinfo.aspx?pc=RB-Ite-06

Créé avec Customizer !http://www.thingiverse.com/apps/customizer/run?thing_id=41274

En utilisant les options suivantes :

16_top_edge_smoothing_radius = 3
pokey_outey = [pokey_outey_value, pokey_outey_value, 0]
41_hauteur_des_indentations_du_cylindre = 15
33_sphere_indentation_location_y = 0.0
43_position_du_cylindre_y = 0
13_set_screw_height = 4
02_knob_diameter_bottom = 20
23_arrow_shaft_scale = 1,5
06_hauteur_de_l'arbre = 7
11_diamètre_de_la_vis_de_réglage = 3
38_smoothness_of_cylinder_indentations = 50
29_sphere_number_of_indentations = 12
14_qualité_de_vis_de_réglage = 20
01_knob_diameter_top = 20
09_shaft_hole_flat_size = 5.0
26_arrow_location_y = 1.0
arrow_indicator_translate = [25_arrow_location_x,26_arrow_location_y,27_arrow_location_z]
traduction_des_indentations_du_cylindre = [42_position_du_cylindre_x,43_position_du_cylindre_y,44_position_du_cylindre_z]
37_nombre_d'indentations_de_cylindre = 7
15_top_edge_smoothing = vrai
42_position_du_cylindre_x = -2
10_vis_de_réglage = vrai
07_shaft_smoothness = 20
40_diamètre_du_fond_du_cylindre = 7
34_sphere_indentation_location_z = 15.0
28_indentations_sphere = faux
39_diamètre_du_dessus_du_cylindre = 4
22_arrow_head_scale = 2.0
05_diamètre_de_l'arbre = 6,2
45_cylinder_starting_rotation = 0
03_knob_height = 16
25_arrow_location_x = 0.0
30_sphere_quality_of_indentations = 40
18_indicateur_externe_pointu = vrai
08_le_trou_de_l'arbre_est_aplatisé = faux
translation_of_sphere_indentations = [32_sphere_indentation_location_x,33_sphere_indentation_location_y,34_sphere_indentation_location_z]
31_taille_des_indentations_de_sphère = 4
24_arrow_indicator_scale = 1,3
32_sphere_indentation_location_x = 10.0
36_indentations_cylinder = vrai
20_pointy_external_indicator_pokey_outey_ness = 1.0
35_sphere_indentation_starting_rotation = 0
04_knob_smoothness = 25
21_top_of_knob_arrow_indicator = vrai
12_set_screw_depth = 9
44_position_du_cylindre_z = -5
27_arrow_location_z = 16.0
17_top_edge_smoothing_smoothness = 20
19_pointy_external_indicator_height = 3