Hi
I am planning on building an Astronomy Star tracker with Ardiuno. However looking for parts and looking for the most suitable parts:
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M4 x12mm hex screw similar to this one
- https://core-electronics.com.au/10-sets-m3x10-screw-low-profile-hex-head-cap-screw.html. I can go for a 16mm length but need the m4
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T nuts
- https://au.rs-online.com/web/p/connecting-components/3900240?ef_id=CjwKCAjwkJj6BRA-EiwA0ZVPVn-tThOlMERXc-M-TqxfI6Isnr6_sHH5582QaC9FmVHbsATMyhrt5BoC4A4QAvD_BwE:G:s&s_kwcid=AL!8733!3!434253228871!!!g!398964993077!&cm_mmc=AU-PLA-DS3A--google--PLA_AU_EN_Enclosures_%26_Storage_%26_Material_Handling_Whoop--(AU:Whoop!)+Connecting+Components--3900240&matchtype=&pla-398964993077&gclid=CjwKCAjwkJj6BRA-EiwA0ZVPVn-tThOlMERXc-M-TqxfI6Isnr6_sHH5582QaC9FmVHbsATMyhrt5BoC4A4QAvD_BwE&gclsrc=aw.ds
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Ball bearings
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Timing Belt GT2 6mm pitch: 2mm 2 meters
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Pulley, GT2 d=5mm 16T
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NEMA17 0.9° for RA axis
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round NEMA 14 0.9° OR a flat NEMA17 for DEC axis
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TMC2209 driver
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Driver holder board
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Neo6m GPS module
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MPU6050
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CAT6 Keystone module, and one Ethernet cable 0.5-1 meters or longer if you want
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M14 x50mm Hex head screw
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PTC heater 12V, lowest temp rating