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As a amature astronomer when i do public sessions i use a 50mw green pointer from dragon lasers made by CNI. it gives a nice tight 532nm beam . used it for over 10 years now with no issues. Also i tied a 80mw CNI pointer visually not much bighter but with lousy battery life. normally full moon...

Glad that you have it going. which iron did you use? I use different ones i started with a weller wes51, then when tougher jobs came i bought some metcal stations still have all of my old irons, cant have enough soldering stations! Bit disappointing I was looking forward to working on one...

were you able to get the diode fixed yet? if not I think I can fix it, for years I have been a soldering specialist for local shops in my area for some time now.

Same here, mom almost died on Christmas eve, we have hospice here now. for a year now, I have been caregiver. so ... just need something to do to take my mind off it for awhile. maybe we can compare notes. Jon

Does anybody have any experience in machining copper? I will be making round heat sinks first. I only have manual machines for turning,boring should I use carbide or HSS? speeds? sharp or honed edges? For milling copper, what end mills work best for copper?

Machining some test jigs now, Also rounding up materials for a small optical table. Have you started a layout yet? I would like to test your first driver I am starting / have a small business doing micro soldering and Electronics repair. I take jobs for the local shops when they are ill...

sounds great , I know you are serious when the camera costs more than the scope. good thing you dont live in east Tenn, I dont think I have seen any stars all year! oops, I just checked ,you may be worse off after all. Jon

I understand completely on being reserved. I used to have the original arctic laser back in the day when w.L. was not even on the us watch list. I always had it at the astronomy club meetings and my friends there knew it. one night one of the members, a good friend of mine of 5 years...

I was a bit too exited that someone was interested in the dome and did not think through the title. You are correct about this country. I see bees as a allergic reaction waiting to happen as I happen to be allergic to them. The project is still a go, the first laser will be mounted on a...

the dome skin is .125 or 1/8. 14 foot1 inch diam and weighs 600lbs even still At that thickness is a very stiff material to get a correct curve from. I have a 228mm f9 TMB APO refractor and will be looking at the planets, moon and sun. Anything that a 9 inch refractor can see I will try...

YES I WANT TO ZAP THEM BEFORE THEY ZAP ME! Please check my other posts, it was explained in detail there. also there is my opinions about safety. anyway the situation is the bees nest inside a aluminum observatory dome. so there is no fire hazard. The dome is designed and built by me ...

have you used the num44? what optics do i need for 1 diode correction? also adjustable focus of course . will add more diodes if one wont do the job. how do we go about the optical correction ? Maybe you can recommend a forum thread for me to study? and sources for all optics used in the...

looking for optics for the 7watt 445nm bad boy. is this 6x set it? need to focus around 30-50 feet. this is for the bee burner project

well, ive seen this alot too. especially for telescope optics and structures. alot of the imported optics being sold mostly rough surfaces, not being made to a null figure etc, the makers wanting only positive reviews only from reputable people. there is one catch, reputable people are...

welcome, the moon experiment laser needs to be around 10w green, however, the real expensive bit is the 1meter telescope to allow a sensitive detector to detect the reflected photons from that distance That will cost ya at least 250k not including a mount capable of a 300lb payload not to...

welcome, I too am an amateur astronomer, I am in Tennessee and more of a visual observer for me it is a more personal experience where I am. not as much orange, I just checked out your photo, looks like a ioptron mount and a serious camera you got there, what is the scope?

how much power do you want your driver to go up to? I guess it really depends on the size of the host. it should not be too hard to design it to go up to maybe 10amp. maybe have a power board and a control board. which can be interchanged or at least maybe make it easy to add higher amp...

do you ever watch yoube? I've learned alot from Watching the EEVblog videos.. if the host is made right, you can probably stack the boards if you cant fit everything on just one.

Thanks, if you do get a digital pot and power one up, I would love know what you find out about them. after your R&D is done how are you going to get a finished pcb made for your driver? Just thinking about your project The issue i see from the available hosts, thermal bridge issue is the...

Thanks, for the great reply, I never got past vocational school, I invent and build quite a bit, I feel the same as you I do this work to learn. knowing how is the end result, not the widget made. It is a great that You want to use the digital pot. Yesterday I was asking if I could use...