Top-Door-Opener Ikea Lack Enclosure made stronger

thingiverse

This remix overcomes the weaknesses of the original design. I've used this design for more than 10 months, opened and closed the door over 250 times. It still holds up well. The magnets remain strong. ### Front Door for the IKEA Lack Enclosure 490mm My connectors are designed to fit a height of 490mm (Lack's legs raised). They also work at heights down to 440mm. If your version has shorter total leg length, simply reduce the front plexi sheet height. See the example below. The connector arms are adapted for this IKEA LACK Enclosure design: https://www.thingiverse.com/thing:2212749 I used the Upper_Legs_Long_490mm.stl option. See my make at https://www.thingiverse.com/make:384455 to know what to print. It looks like I can remove my original Prusa MK2S when the door is open, without needing to dismantle it. ### Parts Walls and Front Door using: 4 synthetic glass sheets 2.5mm, 444 x 490: cut one 1m2 sheet into these dimensions. or 3 x 444 x 490 for walls + 444 x 488 for front door, with a little more margin and comfort. It's essential to use sheets with 2.5mm thickness for the door - no more due to weight, no less due to solidity. Using 16 neodymium magnets: 10 x 5 x 3 mm Get 20 of these in case you need more strength http://www.ebay.fr/itm/172223778879 ### 3D Printing Instructions You can print everything in PLA if you have a strong and confident printer. Print screws vertically. See picture print_orientation_table_mount.jpg PET should be better, but it might be hard to print the screws and threads. ### Assembly Note that the connector_with_hole part is slightly asymmetrical - by about 1-2mm. This might help with alignment. Positioning: look at the pictures for measurements in the metric system. Screw first: top of Table Mount parts should be screwed to the legs at 83mm from the roof. Assemble connectors and plexi mounts using screws and washers, by hand. If necessary, make them rotate smoothly. Finding the right place for triangles (without plexi): left put 2 mags in a triangle (same polarity orientation) + maintain top magnet with strong tape add 2 more mags on front of triangle, maintain with strong tape hold with your hand at very approx final position push up left assembly to the top throw 2 magnets in it, they will orient correctly, close with some tape add 2 more magnets again on the tape now, find the position for the triangle that maximizes stability, mark with stylus right, do the same. Chipboard wood screws to use: diam 3mm x L20 for triangles (3 per Triangle, total 6) diam 4mm x L30 for mounts (2 per Table Mount, total 4) https://www.thingiverse.com/thing:36465 for front door handle video of door action: https://youtu.be/pxghWBwZGv4 https://youtu.be/WngNIq5Koo4 ### Compatibility with the Prusa i3 MK3 IKEA Enclosure. I think this design is not compatible with the Prusa i3 MK3 IKEA Enclosure as is. Even if you remove the 4 Hinges of MK3 enclosure, the top connectors will touch the upper corner standoffs due to added plastic thickness of 5mm inward. The MK3 enclosure by Prusa recommends sheets of 440mm horizontal. Use a 440x440 sheet for the front door. 3D print orange at your convenience. The only change in my pictures is the distance from bottom of plexi to bottom of plexi_mount. Instead of 72-73 mm, it would be approx 22mm. But look where it goes naturally when in bottom position, then stick. ### For Shorter Legs If your version has shorter total leg length, simply reduce the front plexi sheet height. For example, if your legs are 440mm, then the plexi sheet for the door should be 444 x 440 or 444 x 438 for some margin of comfort.