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Find the best answers to your 3D printing questions

Hi all. I have a Wanhao i3 mini. This is my first 3d printer, and I have been struggling with bad curling on my prints. I am using PLA and have tried all the normally suggested things(painters ape,Hairspray, klapton tape) It was printing fine, but now every print fails. I have wondered if this is due to the heatwave here in the UK.
As the title implies, I am a beginner who is look to buy my first 3D-printer. I am wondering which one offers better value for the money. Also, what the differences between the finder and the dreamer?  I can buy (a gently used) Flashforge dreamer on Kijiji for 800-700 dollars.        Thank you in advance for your reply(s),
We are selling our Stratasys Fortus 360mc production machine.   It's in excellent condition and has been regularly serviced by a certified engineer.Soluble Support Removal System is included.   Build size: 355 x 254 x 254 mm.Printable Materials: ABS-M30, ASA, NYLON 12 Suitable applications: Concept Models, Functional Prototypes, Manufacturing Tools and End Use Parts  
Printer is Tronxy. Can not get Cura 3.4 to find the correct port. Devices manager says that the printer is on USB-SERIAL CH340 (COM8).   How do you set the com port on Cura 3.4. Settings, Printer, Manage Printers, Pursa I3 MK2, Machine Settings simply reads the print is not connected. How is Cura 3.4 set to read COM8?   dlw  
I am relatively new to 3D printing, and for some reason my parts are coming out misshapen. I have tried changing layer thickness, my z-axis calibration, smaller layer height, alternating extra walls, and slowing down outer wall and initial layer speed, all without any positive effect. Any help would be greatly appreciated.  Printer: Anet a8 Filament: PLA Slicing Prog. : Cura
Have a new ender 3, having problems with x or y axis warping ( side to side on the extruder rail) and it always warps to the left. Happens on every large print. I've tightened the belt a million times but its still happening on large prints
Test on my desk
Hello to everybody and thanks in advance to who will help me! My name is Luca, I'm italian and I bought an AnetA6 3D printer on AliExpress last 28th March, but I never seen it work! Here is the complete story: 1) Once recived the kit I mounted the whole printer, but at the first power ON nothing didn't work, only a fan turning , no lights on the MainBoard nor in the LCD Display.
dear qidi tech.  I have recently bought a brand new 3d printer from a person on ebay   It was an unwanted gift and he could not work out how to use it.   I have used it now for several prints.  Wow what a beautiful printer. I love it.  But now i have got a small issue with the touch screen.  

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