|
Post by davy on Jul 15, 2017 16:19:56 GMT
|
|
|
Post by davy on Jul 15, 2017 16:31:06 GMT
|
|
|
Post by davy on Jul 15, 2017 16:36:43 GMT
|
|
|
Post by davy on Jul 15, 2017 22:56:57 GMT
|
|
|
Post by davy on Jul 15, 2017 23:18:22 GMT
|
|
|
Post by davy on Jul 15, 2017 23:22:30 GMT
|
|
|
Post by davy on Jul 15, 2017 23:40:05 GMT
|
|
|
Post by davy on Jul 17, 2017 10:31:03 GMT
|
|
|
Post by ChrisV on Jul 17, 2017 11:59:33 GMT
|
|
|
Post by ChrisV on Dec 17, 2017 1:31:01 GMT
My progress on building a small arduino controlled mount has gone from small to, not big, but more complicated. I started looking at small robotic xyz translator arms. They were all too crappy to get any reasonable control. So I ended up buying a mount from Alex that is stepper motor ready ( I think its a GSO copy of a Tak EM??? mount). I went a bits nuts and also got a second hand EQ5 pro mount that was missing the cables and hand controller (first pic). Not sure what I'll do with two such mounts when finished. For the controller I started by getting an ebay nunchuk and interface and plugging into arduino. The breadboarded version worked OK. But then I thought the two mounts that I've got are really quite good so why not make a proper portable mount (well two of them) that's good enough for astrovideo. The designs I'm going for are good for quite high resolution - one of them 1 arcsec and the other 0.2 arcsec.To do this I'm using the onstep build by Howard Dutton - the guy is brilliant. www.stellarjourney.com/index.php?r=site/equipment_onstepOnstep is a complete handset-free system. It all works with the pictured breadboard version. Can do the initial setup star align on a mobile phone, then can run it from the phone or most any planetarium program (eg stellarium, cdc etc) via bluetooth or wifi or usb. So now that works I've some good stepper motors for the EQ5 and the GSO mount from Alex. And if they work I'm going to redo my cgem! Its got to be better than the crappo servos that Celestron use. To make it neat I've ordered some PCBs from easyEDA.com (pictured). Just starting to put those together. Hopefully have it done over the Christmas break. Just have to make some adaptors to put the steppers on the mounts. And I'm going to replace the crummy cogs in the mounts with a belt/pulley drive (have ordered some ebay CNC ones). The fun continues ...
|
|