Need help installing Cura

Hello,

Info: Acer, Extensa 5230E, 2.30GHz x2, 1.9Gb memory, 64 bit, Ubuntu 14.04 LTS, Trusty

Just Received my TAZ 5, my first 3D printer, I’ll start off by saying I know absolutely zero about Linux. I installed Ubuntu on a old laptop I had laying around and downloaded the pre-compiled package “cura_17.10-7457_amd64.deb” to my desktop, I double click this file and a window pops up “Ubuntu software center” and I click install. After that is finished I find an icon “Cura” under “search your computer and online sources” when I click this nothing happens.

Also I stumbled across how to use the Terminal and tried my best to follow the direction how to install it that way but I get an error message. See below. What am I doing wrong?

Ign http://extras.ubuntu.com trusty/main Translation-en_US
Ign http://extras.ubuntu.com trusty/main Translation-en
Fetched 836 B in 9s (90 B/s)
W: GPG error: http://download.alephobjects.com wheezy Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 4C0B27E86C64E93E
W: Failed to fetch http://download.alephobjects.com/ao/aodeb/dists/tusty/main/binary-amd64/Packages 404 Not Found

W: Failed to fetch http://download.alephobjects.com/ao/aodeb/dists/tusty/main/binary-i386/Packages 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.
bmklawt@Lulzbot:~$

Your help is greatly appreciated,
Bruce
Acer, Extensa 5230E, 2.30GHz x2, 1.9Gb memory, 64 bit
Ubuntu 14.04 LTS, Trusty

If you don’t know linux well, why did you choose as a platform for Cura? Are you shooting for a “dedicated” workstation for printer control? If so, an alternative would be Octopi (Octoprint).

Install Cura on your normal PC/laptop, slice your projects, then upload to Octoprint via web interface. Fire off the print and monitor via webcam interface.

There are some instructions here…

http://download.alephobjects.com/ao/aodeb/

Good luck!