On the Greenpower GpSpeed in order to carry the necessary current, tracks on the speed controller need to be thickened with copper wire under a large capacitor. Normally this additional wire prevents the capacitor sitting correctly on the PCB. This spacer allows clearance over the augmented PCB track needed for high current flow and mechanically stabilises the capacitor for a more robust speed controller. 1) Calibrate your printer for dimensions 2) Print 1 of each STL file Download the STEP files and modify as required. Upload your modified files into Thinigiverse. Background This part is designed to support the large capacitor on the PCB as the track underneath the capacitor needs to be thickened to carry the large currents used by the motor. See: http://www.thingiverse.com/thing:355480 http://www.greenpower.beamweb.co.uk http://www.greenpower.beamweb.co.uk/groups/electronics/GpSpeed/index.html Derivative changes N/A Design For Manufacture Assumes 0.50mm nozzle and prints on a 140mm x 140mm bed. Safety Take care if using sharp tools. Sample Part Manufacturing Technical Documentation Printer : Huxley #710 (RepRap Pro) Firmware : Marlin 1.0.0 RC2 - 15 Feb 2013 Software : RepRap Pro Software 811708f - Pronterface Slicing: Slic3r 0.9.10b Material : PLA - Faberdashery - Village Green Material Dia. : 1.75 mm (Msd 1.80 mm ) Nozzle : 0.50 mm Layer height : 0.30 mm Layer width : 0.6 mm Extrusion T : 202 C Bed T : 60 C Feed Rate : 28 mm/s Perimiter rat. : 0.5 Infil pattern : Hexagonal Infil solidity : 0.15 Cooling Fan : No Bed material : Borosilicate Glass Over hangs : Yes Support : No Design For Manufacture Parameters Model : Absolute dimensions Scale : 1:1 Holes : Yes Layer height : 0.30 mm Layer width : 0.6 mm Over hangs : Yes - 45�������������������������������° usually not an issue Support : No Model Tools Function: Model Fix up Tool: NetFab Studio Basic Version: 4.9