[UM2+Extended Printing Problem]

Thanks - I am using PLA, with the following parameters:

Layer Height .15mm

Print Speed 60mm/s

Travel Speed 150mm/s

Initial Layer Z Overlap .15mm

Temps are all at default settings

I've re-calibrated my platen with the same results. Thanks in advance for any suggestions.

[UM2+Extended Printing Problem]

I started using a full raft with printing because of a warping issue that I was having. Now I'm experiencing an issue where the raft prints perfectly, but the first layer of the item I'm printing has a lot of weird issues. It almost looks like my platen isn't level - but the raft prints perfectly, as do all layers above the first true layer. I've attached an image to show the problem. Can anyone suggest what I'm doing wrong?

[Can I use 3 in 1 oil for lubricating the axis?]

Is there a document that explains how and when to maintain a printer (including what and when to oil/lube various parts?

I was surprised that there wasn't either a printed, or PDF, manual provided with my printer. I've been trying to get through a lot of the information here on Ultimaker's site - but there is a ton of stuff here between the forums, helpful videos, product information, etc. An overall document (manual) with links to more detail would be very helpful - and may be here - but I haven't been able to find it yet. Is there something like that?

[Which program for modeling?]

I'm also new to the 3D printing world, but I found the following list of modeling software, as well as the categorization into artistic and engineering applications, to be quite helpful < https://www.matterhackers.com/articles/finding-the-right-3d-modeling-software-for-you>.

I'm currently using OpenSCAD for my designs. I am working on building custom accessories for forensic photography, so need a fair amount of precision. So far OpenSCAD is working well for me, but I'm new enough to realize that I may end up with something completely different.