Summary of Reddit Comments for "best large 3D printer under 1000":

Printers Recommended:

• Artillery X1: "Artillery X1 is an option"
• Ender 5 Plus: "Ender 5 Plus is pretty solid"
• Wanhao D9: "The Wanhao D9 can go up to 500x500 as well"

Other Suggestions:

• Consider building a custom printer using kits like the Ender Extender for a large print bed.
• Look into CoreXY printers like the Tronxy models for a DIY adventure.

Advice on Buying:

• Consider the support and customer service offered by the vendor when purchasing.
• Tiny Machines in Houston was recommended for good support.
• Be aware of the benefits of buying from a vendor within your country for faster support.

Troubleshooting Help:

• Link provided to 3D Printing Wiki for troubleshooting printer issues.
• Suggestions for questions to answer when seeking troubleshooting help included information about the printer, material, speed, software, history of the problem, and factors causing the issue to change.

This summary highlights the various large 3D printers recommended within a $1000 budget, along with suggestions for other options and advice on purchasing and troubleshooting help.