Newtonian modifications

[junior cove]

Speaking of springs. Some newts not made for AP have their focusers too far in the tube worse case causing weird stars. You can get longer screws or loosen the default collimation screws and rely on the springs to take up more slack to push the mirror up, pushing prime focal plane out further from the focuser

[junior cove]

Bro is going crazy with the modifications

[junior cove]

woah thats a cool ass book

[junior cove]

I wonder if reducing the central obstruction can make a difference. I use a 533 so it’s fairly small. I wonder what the results could be if any can be perceived

[dreamy dew]

Will this list of parts be enough to self-build a newtonian? Just double checking with somebody who has a lot more experience with newts.

·TS-Optics 200 mm (8") Newtonian Primary Mirror f/4
https://www.teleskop-express.de/en/telescope-accessories-5/telescope-diy-improvement-299/telescope-making-optical-parts-91/ts-optics-200-mm-8-newtonian-primary-mirror-f-4-1661

·GSO Main Mirror Cell for 8" GSO Mirrors
https://www.teleskop-express.de/en/telescope-accessories-5/telescope-diy-improvement-299/telescope-making-mechanical-parts-64/gso-main-mirror-cell-for-8-gso-mirrors-9484

·TS-Optics Carbon Tubus Upgrade for TS - GSO 8" f/4 Newtonians - focus 140 mm above the tube
https://www.teleskop-express.de/en/telescope-accessories-5/telescope-diy-improvement-299/telescope-making-mechanical-parts-64/ts-optics-carbon-tubus-upgrade-for-ts-gso-8-f-4-newtonians-focus-140-mm-above-the-tube-17007

·Betty's Full Front End
https://astrobiscuit.myshopify.com/products/bettys-full-front-end?variant=49407103304001

·GSO Newtonian Secondary Mirror elliptical - D=70 mm minor axis
https://www.teleskop-express.de/en/gso-guan-sheng-optical-14/telescope-making-optical-parts-91/gso-newtonian-secondary-mirror-elliptical-d-70-mm-minor-axis-16117

·Televue paracorr type 2
https://deltaoptical.pl/korektor-komy-tele-vue-paracorr-2-typ-2

·Baader Diamond Steeltrack BDS-NT 2" focuser
https://deltaoptical.pl/wyciag-okularowy-baader-diamond-steeltrack-bds-nt-2

·Rouz Astro Telescope Tube Rings Lightweight Custom Size (234mm)
https://rouzastro.com/product/telescope-tube-rings-lightweight-custom-size/

Skywatcher red laser collimator 1mW 1,25"
https://www.astroshop.pl/kolimator-laserowy/skywatcher-kolimator-laserowy-1mw-red-1-25-/p,62993

Primary Mirror Mask TS200, CNC machined
https://www.backyard-universe.de/en/p/primary-mirror-mask-ts200-cnc-machined

[dreamy dew]

Thank you for the advice. Both the carbon tube is fully compatible (and according to my knowledge, identical) to the GSO 8" f/4 aluminium tube, and the secondary spider is also deticated and measured to GSO telescopes, so it's probably going to fit no problem. Betty's secondary mirror holder can be adjusted in height on the full front end using an alan key to very accurately align it with the focuser hole, and with the pretty large amount of spacers that come out of the box, it almost certainly shouldn't be a problem. My budget is already very tight so I will probably get a Hotech as you recommended, but not the cheshire or OCAL. I'll try to fully align the secondary mirror using star collimation. Again, thank you for helping me.