OnStep for Seben EQ3 mount
Description
Adapting [Seben Eq3 Telescope Mount](Https://Www.Ebay.Com/Itm/Seben-Eq3-Telescope-Mount-Including-Aluminium-Tripod-/380453559697?Nordt=True&Rt=Nc&Orig_Cvip=True) Or Similar Types To [Onstep Goto Controller](Https://Groups.Io/G/Onstep/Wiki/Home), By Howard Dutton Project. How To This Working? See My Video: Https://Youtu.Be/Moxqw7En8Ye * [My Onstep Controller Box](Https://Www.Thingiverse.Com/Thing:4057270) On Base Stm32 Blue Pill * [Alternative Onstep Cotroller Box](Https://Www.Thingiverse.Com/Thing:3404139) On Base Minipcb2 And Teensy3.2 * [Old Onstep Controller Box](Https://Www.Thingiverse.Com/Thing:2748375) For On Arduino Mega2560 Board * Freecad Sources On [Github](Https://Github.Com/Romanhujer/Onstep-For-Seben-Eq3-Mount) ####Version 1.0 - 3D Printed Gears 54:16 * 1X Ra Motor Is [17Hs15-1684S-Pg5](Https://Www.Ebay.Com/Itm/Extruder-Gear-Stepper-Ratio-3-7-1-Planetary-Gearbox-Nema-17-Step/292645105771) With Gear Rate 3.7:1 (1+46/17) :1 * 1X Dec Motor Is [17Hs15-1684S-Pg5](Https://Www.Ebay.Com/Itm/Extruder-Gear-Stepper-Ratio-3-7-1-Planetary-Gearbox-Nema-17-Step/292645105771) With Gear Rate 3.7:1 (1+46/17) :1 ####Onstep Config.Xxx.H For A4988 Stepper Drivers With 16 Micro Steps * Ra Primary Worm Screw Transver Raito Is 138:1 * Dec Primary Worm Screw Transver Raito Is 88:1 <Pre> <P>// Axis1 Is For Ra/Az <P>// Calculated As : Stepper_Steps * Micro_Steps * Gear_Reduction1 * Worm_Reduction / 360 <P>// : 200 * 16 * 54 / 16 * (1+46/17) * 138 / 360 = 15342.35294 <P>#Define Stepsperdegreeaxis1 15342.35294 <P> <P>// Axis2 Is For Dec/Alt <P>// Calculated As : Stepper_Steps * Micro_Steps * Gear_Reduction1 * Worm_Reduction/ 360 <P>// : 200 * 16 * 54 / 16 * (1+46/17) * 88 / 360 = 9783.529412 <P>#Define Stepsperdegreeaxis2 9783.529412 <P> <P>// Pec, Number Of Steps For A Complete Worm Rotation (In Ra) <P>// Calculated As : (Stepsperdegreeaxis1*360)/Worm_Reduction. <P>//: (15342.35294 *360)/138 = 40024 <P>#Define Stepsperwormrotationaxis1 40024L <P> </Pre> ####Version 2.0 - Metal Parts And Belt Gt2 Reduction 60:25 * 2X Gt2 Timing Pulley With 60 Teeth And Bore 5Mm For 6Mm Belt * 2X Gt2 Timing Pulley With 25 Teeth And Bore 8Mm For 6Mm Belt * 2X Gt2 Timing Belt 6Mm Wide 2Mm Pitch 180Mm-2Gt 90 Teeth * 1X Ra Motor Is [17Hs15-1684S-Pg5](Https://Www.Ebay.Com/Itm/Extruder-Gear-Stepper-Ratio-3-7-1-Planetary-Gearbox-Nema-17-Step/292645105771) With Gear Rate 3.7:1 (1+46/17) :1 * 1X Dec Motor Is [17Hs4413Ag5.18-X](Https://Www.Ebay.Com/Itm/5Pcs-Planetary-Gearbox-Stepper-Motor-Nema-17-1-3A-40Mm-Gear-Ratio-5-18-1-2N-M/122433514757) With Gear Rate 5.18:1 (1+46/11):1 #####Onstep Config.Xxx.H For Tmc2130 Stepper Drivers With 32 Micro Steps * Ra Primary Worm Screw Transver Raito Is 138:1 * Dec Primary Worm Screw Transver Raito Is 88:1 <Pre> <P>// Axis1 Is For Ra/Az <P>// Calculated As : Stepper_Steps * Micro_Steps * Gear_Reduction1 * Worm_Reduction / 360 <P>// : 200 * 32 * 60 / 25 * (1+46/17) * 138 / 360 = 21820.23529 <P>#Define Stepsperdegreeaxis1 21820.23529 <P> <P>// Axis2 Is For Dec/Alt <P>// Calculated As : Stepper_Steps * Micro_Steps * Gear_Reduction1 * Worm_Reduction/ 360 <P>// : 200 * 32* 60 / 25 * (1+46/11) * 88 / 360 = 19456.00000 <P>#Define Stepsperdegreeaxis2 19456.00000 <P> <P>// Pec, Number Of Steps For A Complete Worm Rotation (In Ra) <P>// Calculated As : (Stepsperdegreeaxis1*360)/Worm_Reduction. <P>// :(21820.23529 *360)/138 = 56922 <P>#Define Stepsperwormrotationaxis1 56922L </Pre> #####Auxiliary Pcbs For This Version: * Ra Pbc Design Is On [Easyeda](Https://Easyeda.Com/Hujer.Roman/Onstep-For-Seben-Eq3-Ra) * Dec Pbc Design Is On [Easyeda](Https://Easyeda.Com/Hujer.Roman/Onstep-For-Seben-Eq3) * [Onstep Shc (Smart Hand Controller)](Https://Www.Thingiverse.Com/Thing:3212339) * [Onstep St4 Handheld Controller](Https://Www.Thingiverse.Com/Thing:2626117) * [3D Printed - Small Travel Eq Telescope Mount](Https://Www.Thingiverse.Com/Thing:3327081) * [Onstep For Sky-Watcher Eq5 Mount](Https://Www.Thingiverse.Com/Thing:4170058) * [My Diy Telescope](Https://Www.Thingiverse.Com/Thing:2610531) * [Wood Tripod Upgrade For Telescope With Eyepiece Plate](Https://Www.Thingiverse.Com/Thing:2670699)
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