9/21/2025: 4 models explanations (I have uploaded 3 new versions): have added 3 more versions since it fit in my truck but had a tendency to tilt a tad in the center of the two cup hold... so added a hollow "block" to help stabilize my bottle when full:

-- The V1 versions are 60mm deep into your cup holder:

- original: V1-60mm: the original which is 60mm on the bottom portion that goes into your pickup cup holder (F-150)

- with the "block": V1B-60mm and the block is hollow and 3mm walls (rest 5mm) to help stabilize it of 26mm W x 30mm H x 20mm deep coming out

-- The V2 versions, I have added an extra 20mm straight since in my Jeep Cherokee it was a tad more wobbly because the cup holders were a tad different than my pick up truck:

- V2-80mm: is the original but deeper into your cup holder

- V2B-80mm: is with the "block" added to the 80mm version

-- The V3 is the V2-80 but instead of a rounded mid-section, to avoid support and have a cleaner inside, I removed the bevelled between both sections and did an angled transition...

- I printed that one in Gray eSun ePETG+HS at high speed: 2 walls, "bottom" which is the top once upside down at 1.2mm thick and infill seet at 15% Adaptive Cubic. My speed was set up for 100mm/s first layer and 150mm/s first layer infill... then 200mm/s for inner/outside walls, and 300mm/s for the rest. Printed in less than 3h30 at 0.3mm high (rather than the 0.2mm standard for a 0.4mm nozzle) and width at 0.4

===============

I needed a larger cup holder in my car for my large insulated water bottle (34oz Hydraflow from Sam's Club I believe it was).

so I designed the base to be like a normal yeti coffee cup size (bottom 72mm and top section 81mm)(which fits all cars pretty much) and the upper section to be 93mm inside diameter (3.6") so my larger insulated water bottle could stand there and not roll around in the car every where!

I also left the bottom opened in purpose, so I could use the bottom to hide money, watch, put my coins, chapstick and so on, so I did not loose that space.

- Print upside down, should be able to print without support on the versions w/out the block... may be a bit stringy on the beveled edge inside but I was okay with that. If you want it better, do supports! (Obivously, with the block added, you will need supports!)

- Print in PETG since a car tend to get pretty hot in the summer (mine is Burnt Titanium color).

- Use tape and/or glue and I used a Brim 5mm inside and outside since the base is narrow and I did not want the whole thing to unstick once I was almost completely done printing!!!

- I did 3 walls, 0.2/0.4mm quality, infill 10% Cubic to give it enough strength

Cup Holder Large Insulated Water Bottle (4 versions)

0.2mm layer, 2 walls, 15% infill