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Today's effort
Today I built up the top end of the OTA, ie the bit that will hold the spider and focuser.
I needed to do that next as I have to come up with a way of getting the main struts of the OTA in alignment.
Hence, I have made some aluminium pins that will accept the 32mm round pipes that I will use for the struts, and welded them to the top frame.
The top piece I have made octagonal so that I can set the 4 vane spider 45 degrees offset from the focuser. I intend to use a Moonlite focuser with a filter-slide, so the spider cannot interfere with the filter slide if it is offset.
Later I will use some short pieces of 32mm pipe to position the aluminium pins (yet to be made) that will attach to the bottom section of OTA frame.
I could not see how to set up good alignment of the pins on the bottom OTA section without first making the top piece.
Pics attached.
Back to work all week... no progress expected till next weekend!
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