Frame fittings - X5SA Pro to E3D Toolchange

thingiverse

These are the various frame fittings to go along with the replacement X carriage parts for the toolchange system, here: https://www.thingiverse.com/thing:5149609 Note that this is not a stand-alone toolchange system - these two sets of parts are additions to the E3D toolchange mechanics, their toolholders and many of their printed parts, to allow the E3D system to be used with the TronXY frame. Plus a new control system such as a Duet is needed to manage everything. The machine frame also needs "stretching" by the addition of two pieces of 20x40 extrusion mounted on spacers, to relocate the belt idlers clear of the original front frame, to allow the toolholder mounts to be installed. I used to 200mm sections, but 100mm lengths would make access to the tool mounts easier. Those plus 14mm spacers [or 10mm plus 4mm made up of washers] allow the idler plate to have the single hole point located on the cross rail fixing screw (after opening the hole slightly) and the two T-nut fixings locate in the additional rail sections. See the video at around one minute in, the extensions and new idler position is shown there. Parts included: Frame adapters for tool holders, to suit both the standard size tools like V6 Bowden, and the extended tools such as the Hemera direct. An optical limit switch mounting adapter plate; more details on that here: https://www.thingiverse.com/thing:4932139 Optical limit actuators for the Y axis and Z axis. These mount using the underside three holes at each end of the X axis rail. The two Z axis limit actuators are from the X5S optical limit switch designs by Marco67, here; his work inspired the optical setup on this machine, though everything but the Z actuator has been created from scratch. https://www.thingiverse.com/thing:2983739 The Y and Z optical switch setups could also be used with a standard X5SA Pro frame, however it would need a different arrangement or bracket setup for the X axis. The tool holder mounts should have the main fixing positions opened to 4mm clearance if they are too tight, and two holes for the tool adapter opened up to 3mm clearance. The holders have recesses in the sides that take M3 nuts; these need cleaning and scraping out very carefully, as the slightest bit of stray material will prevent the nut lining up with the screws. Check with a good light source and magnifying glass if needed. If after fitting the nuts you cannot get them in line, a push with a fine soldering iron tip can force them fully in. M4x10 and M4x12 screws with T nuts are needed for attachment to the machine extrusions, depending on the material thickness at each point. If you want to use both the vertical and horizontal fixing screws: Drop two T nuts in the top slot of the rail, fit screws and T nuts to the horizontal positions and engage those in the rail loosely, the more the mount until the vertical crew positions line up the nuts and fit the vertical screws. This video shows all the various parts on the working machine: https://www.youtube.com/watch?v=x-ut81sn-io