Mav359 Posted November 9, 2013 Share Posted November 9, 2013 Hi GuysI really want an auto focuser but in order to that i need to upgrade my focuser to a feather touch and then buy the AF... £700 later im sure i would be happy with the results but when you can buy one of these continuous rotation servo's for £15 i'm curious to know how much more is involved in going from a £15 motor to a working focuser?http://www.ebay.co.uk/itm/Hitec-HSR-1425CR-Continous-Rotation-Dual-Ball-Bearings-/300876786939?pt=Radio_Control_Parts_Accessories&hash=item460da76cfbI found this which looks interestinghttp://emediadesigns.com/focuser/What would it take to make that usb controlled via the PC, is it possible? i could do the £700 after christmas but i'm wondering if i really have toCheers guys Link to comment Share on other sites More sharing options...
Bizibilder Posted November 9, 2013 Share Posted November 9, 2013 I made this: http://stargazerslounge.com/topic/91973-fiddling-with-an-autofocusser/?hl=+focusser%20+bizibilder a couple of years ago now (post 17 onwards) and it works very well. It's not connected to the PC but is on the end of about 5m of wire into my warm room. It is variable all the way from "fast" (whatever that is!) to a "nudge" of about 2-3° of rotation ie very "fine" indeed - especially as this is geared down by the belt by about 2:1. Total cost was under £20. Link to comment Share on other sites More sharing options...
themos Posted November 10, 2013 Share Posted November 10, 2013 http://groups.yahoo.com/neo/groups/sgl_observatory_automation/info lots of info about homemade focusers, PC-controlled and otherwise. Link to comment Share on other sites More sharing options...
JAS Posted November 10, 2013 Share Posted November 10, 2013 You could also look at the SGL automation group on yahoo groups.They have a diy PC controlled stepper motor focuser, the software is also Ascom compliant. I did this earlier in the year and it works very well.Jason. Link to comment Share on other sites More sharing options...
JAS Posted November 10, 2013 Share Posted November 10, 2013 SNAP Link to comment Share on other sites More sharing options...
Mav359 Posted November 10, 2013 Author Share Posted November 10, 2013 Cheers GuysI found the ASCOM compliant one, was looking at replicating Chris's (YesYes).Ive already ordered the Motor, Arduino nano & Easy Driver Board.See what heppens from here Link to comment Share on other sites More sharing options...
Gina Posted November 10, 2013 Share Posted November 10, 2013 I have both Arduino controlled ones with stepper motors and DC motor with plastic gearbox driven from a variable DC source and reversing switch. I haven't yet got anything running from PC - just a control box in the warm room.Good luck with yours Link to comment Share on other sites More sharing options...
Mav359 Posted November 10, 2013 Author Share Posted November 10, 2013 Luck may be needed in order for me to get this right Link to comment Share on other sites More sharing options...
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