To image Ha indoors
Not being able to find a focuser I wanted for my Esprit 120, that came off instantly and went on instantly I decided to make one. I did not want one that was permanently engaged with the scope. Also I refuse to spend £200+
I bought another Skywatcher electronic focuser, a piece of 3mm alloy bar and a 2.5” by 6” round bar.
I won't go into detail as I have taken photographs, what amazed me was the final luck when I attached the vacuum cleaner drive belt it fitted 100% and I had NOT measured at any stage for it to.
The knob attached to the motor has TWO grub screw holes, 3mm which is why the other holes are offset.
I am NOT an engineer as you can see but have enjoyed this. Took a day
The good thing is that the whole unit can easily be swapped over to the other side of the scopes focuser
Esprit 120 Focuser Mod
Esprit 120 Focuser Mod
Just for info, if I ever come over as "blunt" or upset it is not intentional, I am AUTISTIC, I have Aspergers, and ADHD, Autism, so my apologies if I ever sound, unintentionally confrontational. Thank you
Esprit 120mm triplet refractor
Celestron Evolution Edge HD 8"
72mm Ed Skywatcher for Solar
SkyTee 2
Sky-Watcher SolarQuest
Gitzo Systematic Series 5
ASI 178MM
Daystar Quark Ha
WO Binoviewers
Many eyepieces 2"
Esprit 120mm triplet refractor
Celestron Evolution Edge HD 8"
72mm Ed Skywatcher for Solar
SkyTee 2
Sky-Watcher SolarQuest
Gitzo Systematic Series 5
ASI 178MM
Daystar Quark Ha
WO Binoviewers
Many eyepieces 2"
- marktownley
- Librarian
- Posts: 42545
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20813 times
- Been thanked: 10485 times
- Contact:
Re: Esprit 120 Focuser Mod
Looks good Jeremy. I've popped it in the mods section.
Can you put the belt on the fine focuser wheel, the reduced gearing might give you a bit more tweakability?
Can you put the belt on the fine focuser wheel, the reduced gearing might give you a bit more tweakability?
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
- MapleRidge
- Way More Fun to Share It!!
- Posts: 10257
- Joined: Fri Jan 13, 2012 11:58 pm
- Location: Cambray, ON Canada
- Has thanked: 64 times
- Been thanked: 4427 times
- Contact:
Re: Esprit 120 Focuser Mod
Hi Jeremy...
The belt drive mod looks great...a massive improvement in being able to focus if your hand isn't jiggling the scope!!!
Brian
The belt drive mod looks great...a massive improvement in being able to focus if your hand isn't jiggling the scope!!!
Brian
Brian Colville
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM