Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
XY: 0.01mm., Nozzle diameter 0.4mm., Extruder max.temp 260°C, Power input US Plug-110V/ EUP lug-220V, Color Black, 360W, Layer resolution 0.05-0.3mm, Filament diameter 1.75mm, Machine Size 520*550*620mm/20.47”x21.65”x24.40”, Maxprinting Speed 200mm/s., Positioninga ccuracy Z: 0.0025mm, Max Build Volume 230*230*260mm/9.05”x9.05”x10.23”, Power Output DC 24V 15A, Hotbed max.temp 100°C.
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($227.99): Email5
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG20GantryS, Wholesale20
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for ADIMLab Gantry-S 3D Printer is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).