Mug machine marks mugs with heat pipe at bottom. Pictures.

[subnooby]

Hi,

I have already wasted 13 mugs in 3 hours and I am really frustrated.

I am having the issue of white line at bottom of the mug and I tried to solve it raising time.

Last configurations where (with ambient temperature of 13ºC): 200ºC - 220 seconds.

With less time, I get white line and with more time machine marks mugs with heat pipe at bottom.

Could be broken my machine? It's new....

Pictures:

vB_ID:4403

Picture2.jpg (16.23 KiB) Viewed 12 times

vB_ID:4403

Picture2.jpg (16.23 KiB) Viewed 12 times

How can I solve this? Does anybody know where could be the problem?

Thanks!

[UK Printed Mugs]

Possible reasons:
* Paper not tight enough around mug
* Mug press not tight enough at edges (don't make it very tight though)
* Rubbish mugs
* Cold mug base - heat base before pressing - MANY posts already on this so use the search facility
* If using Sawgrass ink then 170c should be enough and between 160-180s

[Mugshots]

As above I would say cold mug base. This happens because the overall thickness of the bottom of the mug far outweighs the mug walls which heat up quicker being thinner

[purpledragon]

what mug press is it im guessing a cheap one sorry if im wrong. I find that these problems are rarely down to the mugs or ink & paper but are nearly always the press

[subnooby]

Thanks all for helping.

There are lot of things to considerate and I have to test all of them. I'm affraid that problem could be related to mug press (it's a mug press about 200-250€) due to I have made 2 years ago some mugs with other machine and I was not having these issues.

I understand problems related to small line at bottom but I have not see information about marks of heat pipe and this is what I don't understand... maybe my machine is a rubbish and machine does not give heat uniformelly.