ZWO EAF Holder for Celestron Edge HD 9.25 " (8" , 11")
Description
ZWO EAF Holder for Celestron Edge HD 9.25 or other simillar Celestron SC telescope. Quick unlock for manual focusing. ###BOM * 1x GT2 Timing pulley 20Teeth/Bore 5mm * 1x GT2-142mm Timing Belt size 6mm * 3x M4 worm * 3x M3 x 15mm Inbus screw * 2x M4 x 35mm Hex Head Screws * 2x M4 Assortmen Add for Version 2 * 2x M3 x15mm Inbus screw * 2x M3 x20mm * 2x M3 nuts Add for Version 3 * 1x M4x 20xmm Hex Head Screws * 1x M4 nuts * 1x M4 Assortmen #####Optional for OnStep focuser 1x Nema17 Stepper motor 17HS15-1704S 1x GT2 Timing pulley 16Teeth/Bore 5mm 4x M3x10mm imbus screew 4x Self Tapping Screw 2x6 1x RJ45 - PCB on [EasyEDA](https://easyeda.com/hujer.roman/focuser_port_for_onstep-minipcb2) ###NOTE Use a M4 tap to create a thread for worm in pulley and M3 tap to create a thread. FreeCAD source on my [github](https://github.com/romanhujer/Elektronic-Focuser-for-Sky-Watcher/blob/master/MyFocuserFreeCad/ForZWO_EAF.FCStd) ###UPDATE 2019-12-08 Version 2 add belt tensioner 2019-12-11 Version 3 improved belt tension 2020-09-03 Version 4 next imporved and fix for Optec Lepus reductor 2020-11-28 Add holder for NEMA17 OnStep focuser 2021-01-01 Add beld tensioner for V4b ###Other remix * [Some improvements by](https://www.thingiverse.com/thing:4191869) by James Dedij
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