Core XY Laser - 2040 Frame

thingiverse

** Update > I have added a zip file containing all the Fusion 360 Designs for this build, will make it easier to mod for your own use. If you do make changes/mods/new versions please link back as a remix of the original design. ** I had some lengths of spare 2040 extrusion left over from converting my (unbuilt) D-Bot into a Hypercube, and seeing as I had a laser diode waiting to be fitted to my HyperCube or Tevo I decided I may as well use the spare parts I had lying around to build a frame and get it up and running as its own system rather that a bolt on for a 3D Printer. The frame is overkill for a laser engraver, however seeing as I already had all the parts it made sense to make use of them. I use an Arduino Uno running GRBL v1.1f and CNC Shield v3.51 (anything greater than v3 should work fine for Core-XY, - Version 3 and below do not support GRBL 0.9+ so do not have functionality for CORE XY) Alternatively use a different board entirely. I have a 2W 445nm Blue Laser from LaserLandAustralia (https://www.ebay.com.au/str/laserlandaustralia2016) A mount to clamp a laser into is provided and should work for things that are around 33mm wide/long, however a blank version is provided in STL and STEP format should this not work for you. **BOM** Fasteners etc ....TBC **Electronics** 2 of Nema 17 Stepper Motors (I used Nema 17HS4001 1.7A 40N.cm 1.8deg) 1 of Arduino Uno R3 1 of CNC Shield greater than v3.00 (I used Elecrow CNC Shield V3.51) 2 of Stepper Drivers (A4988 or DRV8825) for the CNC Shield (I used DRV8825) 2 or 4 Endstop Switches if you decide to use them, however this build doesn't utilise them at present. 1 of 12v PSU 1 of Whatever laser you wish to mount with its controller (I used this - https://www.ebay.com.au/itm/2W-445nm-Blue-Laser-Module/283358907577) **Frame** All frame pieces are 2040 V-Slot extrusion, how long the X and Y axis are down to you, the only consideration is the piece of 2040 that the gantry the X-Carriage travels on, this needs to be cut 51mm shorter than the X sections Example : I am using parts left over from a previous build, my 2040's are as follows: Y sections = 332 mm X sections = 520 mm X Gantry = 469 mm ** Attaching things together** Front Left Mount : 7 of M5 x 10, 7 of M5 Washers, 1 of M5 T-Nut, 4 of M3 x 8, 4 of M3 Washers Rear Left Mount : 7 of M5 x 10, 7 of M5 Washers, 1 of M5 T-Nut Front Right Mount : 7 of M5 x 10, 7 of M5 Washers, 1 of M5 T-Nut, 4 of M3 x 8, 4 of M3 Washers Left Right Mount : 7 of M5 x 10, 7 of M5 Washers, 1 of M5 T-Nut Rear Left Belt Idler : 1 of M3 x 40, 1 of M3 Washer, 1 of M3 Nut Rear Right Belt Idler : 1 of M3 x 40, 1 of M3 Washer, 1 of M3 Nut Each X and Y carriage requires the following: 3 of M5 x 35 3 of Mini V-Wheel 5 of 6mm Spacer 1 of 6mm Eccentric Spacer 6 of Precision Mini Shim (8x5x1) **Locomotion** 2 of 16 Tooth GT2 6mm Timing Pulley (5mm bore) 2 of 16 Tooth GT2 6mm Idler Pully (3mm Bore) 4 of No Teeth GT2 6mm Idler Pully (3mm Bore) However much GT2 6mm Timing Belt to meet your X and Y lengths (I had 5m of it already) *Printed STL parts* 1 of each downloaded STL apart from: I have added a Spacer stl that can be used if you do not have any metal ones already. **Print Settings** I am printing out all with the following settings using some generic PLA: Layer Height = 0.2mm Infill = 35% Rectilinear Top/Bottom = 3 Shells/Walls = 3 **Software** GRBL 1.1f - https://github.com/gnea/grbl *remember to enable CORE-XY support before compiling and uploading* Reprap Calculator - Useful for calculating the correct steps per mm (https://www.prusaprinters.org/calculator/) I use LaserGRBL (http://lasergrbl.com/) for burning/controlling, but there are many other options that may be best for you (see here https://github.com/gnea/grbl/wiki/Using-Grbl)