So it's just a record of the location of AR1408 and AR1410.
Saturday, January 28, 2012
20120128 Sun
We got a clear sky this morning, however, the aperture is partially blocked, so I don't even open the glass window.
So it's just a record of the location of AR1408 and AR1410.
So it's just a record of the location of AR1408 and AR1410.
Friday, January 20, 2012
GOTO Mark-X finalized
Both sides have slow motion control now, the azimuth side was augmented with a dovetail saddle which I already had.
This is the front view, one of the sides was mounted using a simple L-bracket, it's thin but it should be strong enough to hold lighter scope and camera. I've drilled an extra-hole to hold a ball head in case I wanted to.
This view shows the difference between two mounting methods. A solid 6061 aluminium block should provide very rigid mounting but yet simple enough.
I made these by using hand drill and hand saw, persistence and patience is the key. It's now much lighter than the setup which I got from the original owner, and it even provides slow motion control which is absent previously.
--
I've tried to test this setup out in the same afternoon by using the sun as the target. Unfortunately, there was so much cloud around, but fortunately, I could truly test the tracking capability of the mount under this situation since when there was a short cloud gap, I could always see the sun!
This view shows the difference between two mounting methods. A solid 6061 aluminium block should provide very rigid mounting but yet simple enough.
I made these by using hand drill and hand saw, persistence and patience is the key. It's now much lighter than the setup which I got from the original owner, and it even provides slow motion control which is absent previously.
--
I've tried to test this setup out in the same afternoon by using the sun as the target. Unfortunately, there was so much cloud around, but fortunately, I could truly test the tracking capability of the mount under this situation since when there was a short cloud gap, I could always see the sun!
For Sales: Field Power Supply (SOLD)
SOLD.
This is definitely a good bargain for those who want a field power solution. I only ask for $100 HKD for all three items since I've no more use of them. I current mount wants 9V rather than 12V and I don't use a notebook in the field now.
First of all, it's a Panasonic 12V 7Ah Sealed Lead Acid (SLA) battery. SLA battery holds charges really well, and you should keep it charged at all time and it's ready for field use any time! There's no memory effect for this type of battery.
And next is the charger. This one will charge a 12V SLA battery and also a 6V SLA battery. Charging is pretty fast and safe.
Finally there's a transformer for notebook, it supports various type of plug and it support 15V, 16V, 18V, 19V, 20V, 22V and even 24V! So you may use it for any other devices as well.
$100 HKD takes them all, just leave me a message.
This is definitely a good bargain for those who want a field power solution. I only ask for $100 HKD for all three items since I've no more use of them. I current mount wants 9V rather than 12V and I don't use a notebook in the field now.
First of all, it's a Panasonic 12V 7Ah Sealed Lead Acid (SLA) battery. SLA battery holds charges really well, and you should keep it charged at all time and it's ready for field use any time! There's no memory effect for this type of battery.
And next is the charger. This one will charge a 12V SLA battery and also a 6V SLA battery. Charging is pretty fast and safe.
Finally there's a transformer for notebook, it supports various type of plug and it support 15V, 16V, 18V, 19V, 20V, 22V and even 24V! So you may use it for any other devices as well.
$100 HKD takes them all, just leave me a message.
2012-01-16 Venus
Ranger at 5x, Lumenera Lu070M, Mark-X.
Nothing special, plan and simple. This mount is pretty strong so that it really attracts me to buy a bigger scope for it!
Nothing special, plan and simple. This mount is pretty strong so that it really attracts me to buy a bigger scope for it!
Sawing the mounting block of Mark-X
The mounting bars were not cut to exact size. Now, I would like to fix this problem with a borrowed hand saw... it's a hard job indeed, but all I need is patience.
The left side was already finished, the right side is being sawed... it takes a lot of effort, 100 "slides" translate to around 1.5mm at best! 6061 is just strong.
Cutting off the excessive mounting block makes the whole thing looked a little bit better, and it's also more "portable" in the sense that less strange parts here and there.
The left side was already finished, the right side is being sawed... it takes a lot of effort, 100 "slides" translate to around 1.5mm at best! 6061 is just strong.
Cutting off the excessive mounting block makes the whole thing looked a little bit better, and it's also more "portable" in the sense that less strange parts here and there.
Wednesday, January 11, 2012
Cabinet clearing sales
Package deal: $999 HKD takes them all!
Individual items price reduced, all reasonable offer will be entertained, just don't want to waste all these stuff.
Generic Chinese ball head, good quality, rated at 4kg. Ask for $200 HKD.
Shoestring FCUSB, virtually new never used in the field, ask for $400 HKD. Control and power your JMI focuser via your USB port.
Sealed Lead Action battery, reliable power solution in the field. Comes with a Panasonic 12V 7.5Ah SLA battery, a charger which will take 12V or 6V SLA, and also a generic notebook transformer which offers 15-24V by using the 12V SLA. Ask for $100 HKD for all three!
This is definitely a good bargain for those who want a field power solution. I only ask for $100 HKD for all three items since I've no more use of them. I current mount wants 9V rather than 12V and I don't use a notebook in the field now.
First of all, it's a Panasonic 12V 7Ah Sealed Lead Acid (SLA) battery. SLA battery holds charges really well, and you should keep it charged at all time and it's ready for field use any time! There's no memory effect for this type of battery.
And next is the charger. This one will charge a 12V SLA battery and also a 6V SLA battery. Charging is pretty fast and safe.
Finally there's a transformer for notebook, it supports various type of plug and it support 15V, 16V, 18V, 19V, 20V, 22V and even 24V! So you may use it for any other devices as well.
Next is a 70mm doublet (f=500mm) mounted and with 77mm thread, suitable for macro imaging which brings the closest focusing distance down to less than 500mm. Ask for $150 HKD.
Celestron Nexstar mount parts, the gears were still available at $100 HKD as shown below, the bigger one was about 6" in diameter and the smaller one was 5".
JMI 2" -> 1.25" compression ring adapter, $100 HKD:-
Never used JJC EC-2 Eyepiece Extender for Canon EOS DSLR, $30 HKD:-
Another custom machined 2" to 1.25" adapter, it's pretty heavy and could be good for balancing light weight 1.25" eyepiece and heavier 2" eyepiece. With two locking screws for added security. Ask for $50 HKD.
Originally for my Gitzo G1415 when I lost one of the spikes on the legs, so I still have two remain. I've sold my G1415 and now they're sitting idle... very hard to find in Hong Kong and even the distributor refused to order them for me. Ask for $200 HKD.
A small 7-14x monocular, good quality for this size, ask for $50 HKD.
GOTO Mark-X mounting plate with counter weight, ask for $100. The gray mounting plate was sold and is not included.
Individual items price reduced, all reasonable offer will be entertained, just don't want to waste all these stuff.
Generic Chinese ball head, good quality, rated at 4kg. Ask for $200 HKD.
Shoestring FCUSB, virtually new never used in the field, ask for $400 HKD. Control and power your JMI focuser via your USB port.
Sealed Lead Action battery, reliable power solution in the field. Comes with a Panasonic 12V 7.5Ah SLA battery, a charger which will take 12V or 6V SLA, and also a generic notebook transformer which offers 15-24V by using the 12V SLA. Ask for $100 HKD for all three!
This is definitely a good bargain for those who want a field power solution. I only ask for $100 HKD for all three items since I've no more use of them. I current mount wants 9V rather than 12V and I don't use a notebook in the field now.
First of all, it's a Panasonic 12V 7Ah Sealed Lead Acid (SLA) battery. SLA battery holds charges really well, and you should keep it charged at all time and it's ready for field use any time! There's no memory effect for this type of battery.
And next is the charger. This one will charge a 12V SLA battery and also a 6V SLA battery. Charging is pretty fast and safe.
Finally there's a transformer for notebook, it supports various type of plug and it support 15V, 16V, 18V, 19V, 20V, 22V and even 24V! So you may use it for any other devices as well.
Next is a 70mm doublet (f=500mm) mounted and with 77mm thread, suitable for macro imaging which brings the closest focusing distance down to less than 500mm. Ask for $150 HKD.
Celestron Nexstar mount parts, the gears were still available at $100 HKD as shown below, the bigger one was about 6" in diameter and the smaller one was 5".
Never used JJC EC-2 Eyepiece Extender for Canon EOS DSLR, $30 HKD:-
Another custom machined 2" to 1.25" adapter, it's pretty heavy and could be good for balancing light weight 1.25" eyepiece and heavier 2" eyepiece. With two locking screws for added security. Ask for $50 HKD.
Originally for my Gitzo G1415 when I lost one of the spikes on the legs, so I still have two remain. I've sold my G1415 and now they're sitting idle... very hard to find in Hong Kong and even the distributor refused to order them for me. Ask for $200 HKD.
A small 7-14x monocular, good quality for this size, ask for $50 HKD.
GOTO Mark-X mounting plate with counter weight, ask for $100. The gray mounting plate was sold and is not included.
Monday, January 09, 2012
First light of Mark-X with slow motion control
The attachment is pretty successful, and slow motion control is a joy to use. Now high power imaging is just easy!
So these are two images taken with this setup. The one on the left was taken at 30fps and the right one was taken at 15 fps.
Far more detail could be seen given this mature setup. I'm encouraged with this little but solid mount!
So these are two images taken with this setup. The one on the left was taken at 30fps and the right one was taken at 15 fps.
Far more detail could be seen given this mature setup. I'm encouraged with this little but solid mount!
Saturday, January 07, 2012
GOTO Mark-X 補完計劃
機緣巧合之下，覓得經典攝星儀 GOTO Mark-X，很快就被它的工藝所吸引，決定要為它配一個摩打，並把原本機主的重型 mounting system 改成更輕便的系統。
小弟既不熟電工，也不懂金工，但這也是樂趣之所在，學習與娛樂集於一身。
首先是摩打部份，主要是電工與金工的配合，先來電工部份：
Hacking based on Tele Vue (Carton) CXD-1 motor
然後是金工部份：
Mounting the motor
之後是把一個 slow motion control 接上，這涉及搭載望遠鏡，所以必需穩固，也要有微調：
Mounting the slow motion control
萬事俱備，只欠天氣。
小弟既不熟電工，也不懂金工，但這也是樂趣之所在，學習與娛樂集於一身。
首先是摩打部份，主要是電工與金工的配合，先來電工部份：
Hacking based on Tele Vue (Carton) CXD-1 motor
然後是金工部份：
Mounting the motor
之後是把一個 slow motion control 接上，這涉及搭載望遠鏡，所以必需穩固，也要有微調：
Mounting the slow motion control
萬事俱備，只欠天氣。
Thursday, January 05, 2012
2011-12-31 Sun and Moon
These were two independent observations. First up was the sun:
It was taken with a reducer.
Next up was the moon, the first one was a mosaic of two frames, actually, the 1/3" CCD was just a little bit smaller than the image.
And in order to try out the tracking performance of my Mark-X, I inserted my 5x Powermate and it works out fine:
So, the Mark-X really creates a lot of opportunity for different observation, the high loading plus the excellent portability left nothing to be desired.
It was taken with a reducer.
Next up was the moon, the first one was a mosaic of two frames, actually, the 1/3" CCD was just a little bit smaller than the image.
And in order to try out the tracking performance of my Mark-X, I inserted my 5x Powermate and it works out fine:
So, the Mark-X really creates a lot of opportunity for different observation, the high loading plus the excellent portability left nothing to be desired.
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