To cut the circles, I used a router with a straight cutting bit and a circle cutting jig. A week after they said they would send the secondary and other parts, I called to ask if things had been sent. Two different construction supply companies told me that sonotubes were not available with a 14 inch diameter, even by special order. I drilled the holes in the center of the ground board and rocker bottom using a 9/16 bit, thinking that I needed the extra 1/16 so that the spacer could move. Crayford focusers are considered superior to entry-level rack and pinion focusers, normally found in this type of device. The last chapter of the book describes a plan for an 8 inch sonotube dob with a few design elements from their truss design, and, as I read that chapter, the simplicity of its construction was very appealing. After the glue dried but before the clamps were removed, I added corner braces to all four corners of the tube using glue and brads to hold them in place. The rocker sides are each made of two identical pieces of inch plywood glued together, creating two sides one inch thick. on Step 5, After much debit and doubt i have taken the photos down cause i cannot be 100% sure that they were taking from my scope as i was not there to verify them and i do not want my contest entry to be based on photos and not the build process. Sew the seam, and sew an elastic cord into the top to secure it to the secondary cage. Using a compass, I drew lines for the inside and outside of the Ebony Star ring on the top and bottom of the rocker bottom. Below are cutting diagrams and diagrams of the rocker and tube box with side bearings. I had chosen a boxy, rigid design for the binocular scope, so The project took several months off and on to complete, although a skilled Maker could put a similar one together in a few weeks. Again from the main FILES page, go to "ASCOM DRIVERS" and download everything. Carve out a hole on the top part of the sonotube first. If you don't want to go that route, contact me at gary.hethcoat@gmail.com since I have a lot of spare parts and I can sell you a "kit" with a PCB and only the parts you need. This means you lose much of the night's images. If you're not familiar with Arduino, watch some tutorial videos. My wife helped me by moving the mirror into and out of the tube around the marked spot while I stood at the eyepiece trying to bring some distant trees into focus. Rock Paper Scissors Using Tinkercad Circuits and Arduino, Punchy the MECH & the Autonomous Fight Club, Soft-sensor-saurus | an E-textile Soft Sensor Soft Toy With LED Light. Be creative! They suggested a construction supply place on the other side of the city that I had not called yet. After another 3 weeks, I was concerned that I had not received the mirror. a try. Thicker knitting needles would be even Here is what I was working on but looks like I need a better design. Once your telescope is assembled, drape black woven velveteen around the truss assembly, clipping it with safety pins. Instead of the rack and pinion, they have a smooth spring-loaded shaft which holds the focus tube against four opposing bearing surfaces, and controls its movement. To glue the side bearings and rocker sides to full thickness, I covered a side with wood glue, then carefully lined up the pieces and put two small nails into the pieces to hold them in place. Able to shift heavy loads of kit ie over 1000g.

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