Category Archives: EQ-Z

Home made Equatorial Mounting based on Byers 15.25″ and 12″ gears and worms.

EQ-Z-Final

EQ-Z – Final Assembly

Well, the EQ-Z mount is finally complete. At this time, the mirrors have been glued with RTV to their support cells. I think next week-end will be first light. Hopefully I can test and configure the mount before then. Since … Continue reading

Posted in EQ-Z | Tagged , , , , , , , | Leave a comment
EQ-Z-DEC-PART-2

EQ-Z – DEC Housing and Shaft Assembly (Part 2)

I picked up the screws I was missing last week-end to install the encoder read head, counterweight bar, the rear RA shaft cover. I had to have the cables well routed in both shaft before I could any adjustment to … Continue reading

Posted in EQ-Z | Tagged , , , , , , , , | Leave a comment
EQ-Z-DEC-ASSY-PART-1

EQ-Z – DEC Housing and Shaft Assembly (Part 1)

With the mount’s base and RA assembled I was finally able to start working on the declination axis! I started by finishing all of the cabling. There was still a bit of work left there. I managed to keep everything clean … Continue reading

Posted in EQ-Z | Tagged , , , , , , , , , | Leave a comment
EQ-Z-In-Ob

EQ-Z – Moved to Z-One Observatory

Finally! With both the interior and exterior of the observatory finished (minus a couple details here and there…) I was finally able to plan the move of the RA housing (largest sub-assembly of the entire EQ-Z mounting) into the observatory. … Continue reading

Posted in EQ-Z | Tagged , , , , , , , , , | Leave a comment
EQ-Z-Control

EQ-Z – Back Panel

As mentioned before I decided to switch from the Gemini 2 controller which I had plenty of experience with to the Sideral Technologies Servo II. I really wanted a controller that supports High Resolution shaft encoders. I had almost gave … Continue reading

Posted in EQ-Z | Tagged , , , , , , , , , | Leave a comment
eq-z-ra-gear-cover-assy-1

EQ-Z – RA Housing and Shaft Assembly (Part 3)

Quick and final update for the RA assembly. I’ve already started working on Declination parts and hopefully I will start putting the Declination assembly together. The toughest part (the shaft) is done – I am anxious to have everything ready … Continue reading

Posted in EQ-Z | Tagged , , , , , , , , , | Leave a comment
eq-z-ra-finished-4

EQ-Z – RA Housing and Shaft Assembly (Part 2)

I was able to make more progress on the mounting this week. I first finalized the clutch assembly. I needed to enlarge (actually deepen) the housings for the four dowel pins (which force the clutch assembly to be kept in … Continue reading

Posted in EQ-Z | Tagged , , , , , , , | Leave a comment
eq-z-ra-shaft-2

EQ-Z – RA Housing and Shaft Assembly (Part 1)

It’s been a while since my last progress on the equatorial mounting… But I am now officially started on the “serious” work: i.e. all of the heavy assembly work. So here’s what I have so far: Although I haven’t made any … Continue reading

Posted in EQ-Z | Tagged , , , , , , , , | Leave a comment
Motor-Interface

EQ-Z – Motor Interface

Theoretically the Gemini-II controller could work with any brushed DC servo motor. There are some limitations to this. One is the maximum current that the IC built-in the Gemini-II controller can actually output (that limitation could probably be lifted by … Continue reading

Posted in EQ-Z | Tagged , , , , , | Leave a comment
ra-shaft-raw

EQ-Z – RA Shaft

After several months with no work on the mounting, I finally got back to it by working on the electronics that interfaces the motors to the Gemini-II controller. Meanwhile, I sent out one of the two big lathe jobs. None … Continue reading

Posted in EQ-Z | Tagged , , , , , | Leave a comment