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2Instructables10,987Views4CommentsSan Antonio, Texas

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    • Sharpening Jig for Forstner Drill Bits
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  • Sharpening Jig for Forstner Drill Bits

    Hello, Seamster!I recorded a video yesterday, intending to post it here. But, I am still trying to figure out how to upload it from my iPhone to my PC. it is too big for gmail, so I am trying to transfer it with "My Drive" or "One Drive" or the like. If I can get it into my PC, I can edit it into a set of three smaller files. Please be patient...Bill Patterson

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  • Control Your Telescope Using Stellarium & Arduino

    Nelson:Thank you for your answers--good information! The mechanics of this project should be pretty easy for me.But, the electronics will be a real challenge:1) Because I have no prior experience with encoders or Arduino, I want to try to buy exactly the same ones that you used. Please tell me exactly what specs I need to order them.2) Your parts list includes 4- 470 Ohm resistors. What wattage should I look for? I'm presented with several choices: 1/4-watt, 1/2-watt, 1-watt, and maybe more.3) This is a big one: As I mentioned, I have no experience with Arduino and only VERY basic experience with soldering components to a proto board. Could you PLEASE furnish more photos that show connection details of the of the components that are located on......the breadboard...the Arduino...the short…

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    Nelson:Thank you for your answers--good information! The mechanics of this project should be pretty easy for me.But, the electronics will be a real challenge:1) Because I have no prior experience with encoders or Arduino, I want to try to buy exactly the same ones that you used. Please tell me exactly what specs I need to order them.2) Your parts list includes 4- 470 Ohm resistors. What wattage should I look for? I'm presented with several choices: 1/4-watt, 1/2-watt, 1-watt, and maybe more.3) This is a big one: As I mentioned, I have no experience with Arduino and only VERY basic experience with soldering components to a proto board. Could you PLEASE furnish more photos that show connection details of the of the components that are located on......the breadboard...the Arduino...the short piece of aluminum angle. I really need to know exactly what gets soldered to what.Thanks loads!Bill (in the US)

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  • Control Your Telescope Using Stellarium & Arduino

    Hello, Nelson...I am very excited about beginning this project, but I have some questions:1) It appears that the encoders and Arduino get their power from the laptop. right? I am thinking that I can supplement the laptop's battery reserve with a 12 v. GelCell and a car- charger power cord.2) I have never used an Arduino before. I found this eBay listing that seems to match the one in your photo. Please confirm: Is this the correct item?<https://www.ebay.com/itm/DUE-R3-Development-Board-...>3) Why did you choose to use only 3mm thick plywood wheels? It seems that doubling that thickness would make the wheels stiffer and make it unnecessary to trim the timing belt (which I believe you said was already 6mm wide). (What am I missing?)4) Did you find it necessary to balance your telescop…

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    Hello, Nelson...I am very excited about beginning this project, but I have some questions:1) It appears that the encoders and Arduino get their power from the laptop. right? I am thinking that I can supplement the laptop's battery reserve with a 12 v. GelCell and a car- charger power cord.2) I have never used an Arduino before. I found this eBay listing that seems to match the one in your photo. Please confirm: Is this the correct item?<https://www.ebay.com/itm/DUE-R3-Development-Board-...>3) Why did you choose to use only 3mm thick plywood wheels? It seems that doubling that thickness would make the wheels stiffer and make it unnecessary to trim the timing belt (which I believe you said was already 6mm wide). (What am I missing?)4) Did you find it necessary to balance your telescope tube (and thereby reduce the strain on the encoders)? I am in San Antonio, Texas USA, which I think is at 29.4 degrees N Latitude (if that angle matters).Those are my questions for now. Once again, I am very excited about this project. I have only had my Sky-Watcher Newt/Dob 8-inch for a year, and being able to find and track "stuff" with Stellarium sounds really great!Thank you very much,Bill

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