Add flow offset for spools

[kvuorine]

How about adding flow offsets for spools for easier management of proper flow rates?

[monterman]

I also would support this, for my Marlin printer using linear advance, it would be great to have a M900 Kxx to adjust the linear advance K factor tweaked to different material spools.

[malnvenshorn]

Do you want this feature to print different materials or is there another reason?

@monterman I guess the value is only depending on the material?

[remy561]

I'd like this addition as well. Most of my spools print great at .92% flow in CURA. However, one of my spools requires .98% as it is probably a bit too thin. Being able to set the Octoprint flow rate to these settings instead of CURA allows me to slice a model without taking the spool into account :)

[kvuorine]

I suggested this feature for exactly the same reason as remy561.

Edit: Not necessarily to print different materials, but to compensate variations in spools of same material but different colors, different spool manufacturer etc. It would be easier to print test cube sliced with 100% flow from octoprint, measure results and adjust flow offset per spool.

I think managing per spool flow in octoprint would also make it easier to experiment with different slicers.

[JranZu]

I'd also like to place my vote for this. I've got my Cura settings dialed in -- most of the time all I need to do is offset the temperature and I can use the same file for multiple spools, however a few of my spools needs to a flow rate of 120% to print correctly. I hate having to create a new slice just for those spools - I use the flow settings to fix it - but it would be nice if it was part of this (and I didn't have to remember to set them and for which spools)

[rescuehero]

would also like this feature, because i got an extremely wide range of flowrates for different filamentmanufacturers.