UPDATE: Here is a great solution for the filament guide..
So, I found this GREAT solution for using other brands of filament in my Dremel IdeaPrinter. Well, it served it's purpose, but had a few tweaks that I felt needed to be done. All of these things are work in progress, are they not?
Anyway - With permission, I reworked this:
By remodeling the idea, to reduce the load times, Changed the way that the spindles attached to the plate (one way, and no way to wear loose), and added a couple extra sizes of spindles. (Dremel Filament, Aspeteck, and WYZ brand). If someone has something that needs to be a little different, do not hesitate to let me know, and I will gladly create one for you.
It is also my understanding that this will work well with the Flashforge Dreamer, but I don't have one, so I cannot attest to that.
Anyway, I set the prints on more of a standard setting but to print a bit faster. I'm impatient that way. Needed to find some (8) M3 machine screws with (8) nuts/ (16) washers, etc. I tend to "over engineer" but the idea is to replace the existing vent (simple clip out) with a sandwich style plate, that won't change anything about your existing printer. No holes to drill, etc. Model is metric, so scale accordingly. The main plate should be 119mm x 139mm max.
The photos show pretty good on how to assemble the unit. Just set it all up and run the filament through the back grate of the printer and you are good to go. If you have any questions though, let me know. I will be happy to answer them.
Oh - I also included a bonus file - it's a little "chute" to run the filament from the side of the printer to the back, but I didn't like it much, so I don't use it. Maybe someone could come up with a better way of doing that. :)