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VdB 141 Ghost Nebula

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Posts Made By: Walter Hamler

February 10, 2015 01:41 PM Forum: Binoviewers

Anyone here know what this nose piece is designed

Posted By Walter Hamler
This is my Denkmeier II binoviewer with a "Low Power" nose piece. It works as a barlow of about 1.5X. I cannot find any mention of it on the Denkmeier website.

Walt

April 9, 2015 06:02 PM Forum: Mounts

Thoughts on the AP600E Non Goto

Posted By Walter Hamler
A friend has one of these with encoders so that it works as a push to mount. Any thought on its value? It is very lightly used and in great shape.

Walt

December 25, 2015 02:14 PM Forum: Equipment Talk

Voltage Requirements

Posted By Walter Hamler
I have an AP 600E mount with the stepper motor drive. It calls for 12vdc but I would like to make a highly portable power source using the commonly available Lithium battery packs from a portable power tool setup. I have a Ryobi 18v system but am concerned that the voltage may be too high. Would I be better served to go with a 12 to 14 volt source?

Walt

January 18, 2016 05:05 PM Forum: Equipment Talk

Auto Guiding with AP 600E

Posted By Walter Hamler
I have an AP600E with the stepper motor drive. The hand controller has an autoguider input on the side. I am wondering if this will wotk with something like the Orion Star Shoot guider in conjunction with a laptop and PHD2 software.

Walt Hamler

February 25, 2016 06:03 PM Forum: Mounts

Mini Tower Adventures

Posted By Walter Hamler
I recently purchased a Mini Tower but was not too happy with the smallish tripod it came with. So, I made some modifications to allow using my AP600 tripod. This shows my C9.25 mounted for a test whirl. It slewed around with no difficulties so a star test tonight. I will most likely add another small counterweight to make balance better.

Walt

September 5, 2016 12:22 PM Forum: Equipment Talk

Re: modifying tripods

Posted By Walter Hamler
This is what I made. I can use the adapter withe various tripods and pedestals.

Walt

April 13, 2002 07:26 PM Forum: Telescope Making

1.25 inch short rack and pinion focusser

Posted By Walter Hamler
JMI makes one called the Monorail. I have the 2" version that racked in is just under 2" off the tube. I believe the 1.25" version is about the same. They are less than 100.00 and of very good build quality.

April 16, 2002 11:37 PM Forum: Telescope Making

Newtonian Project

Posted By Walter Hamler
For what it's worth, the attached photo is my 8"f/6 that I recently completed. The mirror is homeground from 7/8" plate glass. The tube is sonotube that I stripped away the wax inside and outside and then fiberglassed. The focuser is 2" JMI, 1.65" diagonal. The mount is TAL2-M Russial GEM. At a recent starparty I compared imaged of Jupiter side by side with an AP 5" f/6, the new one. I will readilly admit that the contrast was slightly better in the refractor, but not 3000.00 worth!! Sharpness was about equal in both. Image brightness was much higher in the 8", as expected. I would consider my mirror good to excellent, but nothing to rave about. Can't wait to get my newly finished 10" mirror in a tube unit!
Walt

April 28, 2002 09:38 PM Forum: Lost Contacts and Personal Messages

Tim Hogle

Posted By Walter Hamler
Never mind! I found him.

Walt

May 5, 2002 01:30 AM Forum: Telescope Making

10" F5 Carbon Fiber ATM

Posted By Walter Hamler
Where can I get instructions and product prices on building such a tube, full length for a 10" f/6 that I have.

Walt

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