K8200/3Drag TR10x2 Trapezoidal Spindle

thingiverse

3D-Parts for a rectangular spindle TR10x2, 410mm long. Instructions List of materials, purchased parts: All purchased components are available on Ebay. The company names listed serve as sources of supply. 1x Trapezoidal Spindle TR10x2 right Din 103 c15 1 meter, source => Metallbau Pietrzak 3x Trapezoidal nut TR10x2 right steel 6kant SW 17x15, source => Metallbau Pietrzak 1x deep groove ball bearings, Type: 6200, Seal 2RS / 2RS1 / both sides, Plastic coating, Item No .: 261643882768, source => G.A.P. Kugellager HG 1x Flexible Shaft Coupling 5mm to 10mm, source => www.HexaCube.de Mechanical prework: 1x Trapezoidal spindle cut to 410mm, 1x Trapezoidal nut split into two trapezoidal nuts (50/50) Mounting is similar to the K8200. 3D-Prints 1x Z-Axis bearing-holder; TR10-2_Holder.stl, 1x Anti-wobble and backslash Z-axis nut holder with shaft-greasefeed; TR10-2_Drv_BSS-2.stl, Z-axis mounting is similar to the K8200 instructions. The Z-Axis bearing-holder The bearing fits strictly within the bearing-holder, thus securely fixing it in place. The Z-axis nut holder contains 2 TR10x2 nuts inside, When using trapezoidal nuts with the anti-wobble and backslash Z-axis nut holder, ensure they remain snugly fitted even when the lead screw nut is screwed tight. If it doesn't work out, one of the TR10x2 nuts must be rotated by 60 degrees (pulling the back nut off, turning it by 60 degrees and reinserting) until it fits (up to four attempts). A single 1mm tick alu washer can also be used from the K8200 Z-axis part (visible in photos). Due to the modification of the Z-axis pitch to 2mm, Marlin firmware had to be updated. Configuration.h //#define DEFAULT_AXIS_STEPS_PER_UNIT {64.25,64.25,1600,600} Default steps per unit for the K8200 with TR10x2 Z-axis. After assembly, calibration is required for X-, Y-, and Z-axes, as well as Extruder. It's very easy to be precise with the right calibrations!