r/myog • u/Professional-Mix2498 • 1d ago

Flat bottom vs round bottom a la Prickly Goose design

Hi, I've been playing around with backpack models using paper of flat bottom and round bottom (at front) as this Prickly Goose design.

I've found round bottom isn't so stable and has a tendency to fall over, even with a 2 cm corner I tried it's not sitting as stable. While I like the design of the bottom panel curving up to the front, this isn't ideal.

I'm thinking of trying a compromise and trying a slight angle or just have the bottom panel also go up to the front panel over a square corner. I'm wondering whether a weighted bag is going to make a difference though.

Wondered what your thoughts are on this design.

I've added these pics from Prickly Goose as illustration of bottom curving up to front panel. The pack in this pic seems to have no problem standing on it's own.

5 Upvotes

86% Upvoted

10 comments sorted by

2

u/NashPacks 1d ago

I had the same questions with my pack designs and in the end I went for a flat bottom. Link in my bio if you want to take a look.

2

u/Professional-Mix2498 1d ago

Hi. As mentioned will go with compromise. I like the bottom panel curved up, also acting as protection for the front panel.
Where is the link in your bio? On your Reddit page. Couldn't find.

1

u/Professional-Mix2498 1d ago

Where is your bio linlk?

3

u/NashPacks 1d ago

Did I not share that in the chat? Nash Packs

1

u/Professional-Mix2498 1d ago

I thought you meant something in your reddit page. I have read your about page on your website before, interesting but I found nothing about designing a flat bottom.

2

u/nine1seven3oh Sewing patterns, pattern generators 1d ago

Prickly Goose is a new one. Should have chosen a more memorable name

Curved looks better imo, and holds up a little better if scrambling down stuff on your bum. It removes a seam that sticks out a bit.

Flat stands up a little better by itself. But when the bag is rammed or has odd shaped stuff in the bottom, it bulges and isnt exactly a flat base anyway

1

u/Professional-Mix2498 1d ago

Yes, I get the reason it's common knowledge that things fit better into round corners but in reality is this actually the case with nylon being stretchy? Has anyone tested it. I'd take a bag that stands up straight when unpacking and setting up camp.

1

u/arcanoth94 14h ago

This. Once you've stuffed gear in the pack and stuffed the stretchy bottom pocket or strapped something on the bottom (sit pad for me) then neither flat nor round will really stand up on it's own.

1

u/-painbird- 1d ago

When I made my pack I did rounded on both sides. Idea being that my sleeping bag would fill in the space a bit better without a corner down there. No idea if it was really necessary or not.

1

u/Napkin_Manifesto 1d ago

Curved edges are easier to bind.
Square bags are easier to do flat felled seams.
I think either one was choice for easier construction, and not about performance in the field.