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Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (645.49 USD): BG807222
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Price history and price alert
Check out price history chart (for all/most countries) for Voron V0.1 Corexy 3D Printer Kit.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).