So I will take pictures as I go.
first assembly, cake tin drive,
parts used
2 x motors $9.48USD each,
New High Torque 12V DC 25RPM Stabilivolt Electric Gear Motor Free Shipping-in DC Motor from Industry & Business on Aliexpress.com | Alibaba Group
Spiral pointed tap set for the M8 thread. I tapped one coupling with these and one with a traditional tap and with the spiral. The spiral was easier and did a better job, $6.29USD a set (HSS).
Spiral Pointed Taps Tapping Thread Forming Tap Titanium Coated Hss 5pc Metric Spiral Fluted Machine Screw Tap Kit M3 M4 M5 M6 M8-in Tap & Die from Home Improvement on Aliexpress.com | Alibaba Group
Couplings, 8mm x 6.35mm $3.15USD a pair. I drilled the 6.35mm hole to 6.5mm before tapping, as I didnt have a 6.75mm? drill but this did OK.
2pcs 6.35mm to 8mm Aluminum Shaft Coupling Motor Rigid Coupling Coupler Blue-in Shaft Couplings from Industry & Business on Aliexpress.com | Alibaba Group
cake tin was ebay, I am glad I bought 2 as I f*cked the first hole it was miles off centre. $4.59AU doh
New Round Cake Fondant Decorating Mold Sugarcraft Tins Pan Bakeware Tools Mold | eBay
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