This is a simple device for fixing screws, rods and other rigging elements, which is easy to do manually and time consuming. It can be made from available materials or ordered ready. Just need to have one in your arsenal of every modeler.
My serving machine gave me a husband. Even without instructions, it is easy to assemble and even easier to use. The only thing I have added is a small spool, on which the thread for healing is wound. I found specifically the same diameter as the metal tube, which I did not paste in advance, and left detachable, so that it is easy to remove and change the thread. To prevent the publication - it was fixed by binders.