Precise focus slide

These parts art used with a 300 mm rod and guides (8 mm diameters) as you can see in the cover photo. We used this kind of reference to make our own : https://www.amazon.fr/dp/B07X3WGWTK?psc=1&ref=ppx_yo2ov_dt_b_product_details

. Print the structure parts and the round adjustment handle at one with "tete_reglable-structure"
. Then print "tete_reglable_-_chariot_V2"
. use M4 bolts of 20/25 mm long to crew guide shaft support and ball bearing.