u/bassit444

Hey everyone, first time posting here, could use some help lol.

I'm making a DTF design for a personal t-shirt, just for myself. It's a black and white halftone portrait design (grainy dot texture, high contrast), made at 2048x2048px, 300 DPI.

I want it printed at 41x41cm but here's my issue — when I upload the file to my printer's website, it auto-imports at a default size of 30cm no matter what, and then there's a manual scale/reposition option after that. I thought maybe if I doubled my design to 4096x4096px it would import bigger automatically and save me the manual scaling step. Nope — same 30cm default import, just made the site laggy from the bigger file. So that didn't really solve anything.

Since it's a halftone, I'm worried about the dot pattern getting blurry or messed up if I scale it wrong (like moiré patterns or the dots merging together). And I won't get to see the physical print before it's done — I just send the file to the site and they print it, so I really don't want to mess this up.

Questions:

• Does that 30cm auto-import thing actually matter, or do I just ignore it and manually scale to my real target size?
• What pixel dimensions / DPI should I actually be working at for a clean 41cm halftone print?
• Should I upscale my existing 4096px file, or redo the halftone effect from scratch at a bigger canvas size to avoid blur/moiré?

Hey everyone, first time posting here, could use some help lol.

I'm making a DTF design for a personal t-shirt, just for myself. It's a black and white halftone portrait design (grainy dot texture, high contrast), made at 2048x2048px, 300 DPI.

I want it printed at 41x41cm but here's my issue — when I upload the file to my printer's website, it auto-imports at a default size of 30cm no matter what, and then there's a manual scale/reposition option after that. I thought maybe if I doubled my design to 4096x4096px it would import bigger automatically and save me the manual scaling step. Nope — same 30cm default import, just made the site laggy from the bigger file. So that didn't really solve anything.

Since it's a halftone, I'm worried about the dot pattern getting blurry or messed up if I scale it wrong (like moiré patterns or the dots merging together). And I won't get to see the physical print before it's done — I just send the file to the site and they print it, so I really don't want to mess this up.

Questions:

• Does that 30cm auto-import thing actually matter, or do I just ignore it and manually scale to my real target size?
• What pixel dimensions / DPI should I actually be working at for a clean 41cm halftone print?
• Should I upscale my existing 4096px file, or redo the halftone effect from scratch at a bigger canvas size to avoid blur/moiré?

Hey everyone, first time posting here, could use some help lol.

I'm making a DTF design for a personal t-shirt, just for myself. It's a black and white halftone portrait design (grainy dot texture, high contrast), made at 2048x2048px, 300 DPI.

I want it printed at 41x41cm but here's my issue — when I upload the file to my printer's website, it auto-imports at a default size of 30cm no matter what, and then there's a manual scale/reposition option after that. I thought maybe if I doubled my design to 4096x4096px it would import bigger automatically and save me the manual scaling step. Nope — same 30cm default import, just made the site laggy from the bigger file. So that didn't really solve anything.

Since it's a halftone, I'm worried about the dot pattern getting blurry or messed up if I scale it wrong (like moiré patterns or the dots merging together). And I won't get to see the physical print before it's done — I just send the file to the site and they print it, so I really don't want to mess this up.

Questions:

• Does that 30cm auto-import thing actually matter, or do I just ignore it and manually scale to my real target size?
• What pixel dimensions / DPI should I actually be working at for a clean 41cm halftone print?
• Should I upscale my existing 4096px file, or redo the halftone effect from scratch at a bigger canvas size to avoid blur/moiré?

Any advice appreciated, kinda flying blind here since this is my first DTF project. Thanks!