Elegoo Labor Day Sale Cuts Neptune 3 Pro to $169 and Neptune 4 Plus to $309

Elegoo has slashed prices on two of its most popular 3D printers for Labor Day, making this one of the best entry points into hobbyist 3D printing this year. The sale ends soon, so if you have been waiting for the right moment to buy, this is it.

The Neptune 3 Pro is down to $169, which is a steep cut from its usual asking price. That is an absurdly low bar for a working 3D printer with a heated bed, auto bed leveling, and a direct drive extruder. Assembly takes about an hour and seven screws, and the build volume is 225 x 225 x 280 mm. It handles PLA, PETG, and TPU without drama, which makes it a solid first machine.

If you want more build space, the Neptune 4 Plus is priced at $309 instead of its regular price. That gets you a 320 x 320 x 385 mm build volume, dual-gear direct drive, and the same large part cooling fan Elegoo put on its Pro models. The Plus also includes acceleration sensors and Wi-Fi connectivity, features that matter once you start printing bigger models that need consistent cooling and remote control.

Both machines run Marlin-based firmware, so you are not locked into a proprietary ecosystem. That matters for users who want to tinker or use third-party slicers later. The discounts are only available for a short window, and stock can disappear fast on sale items like this.

At these prices, the Neptune 3 Pro and Neptune 4 Plus are hard to ignore. If you are on a budget, grab the 3 Pro. If you plan to print cosplay armor, props, or anything that needs real scale, the 4 Plus is the better deal.