Mendel90 updates. It has been a long road but I am now in a position to sell complete kits for Mendel90. My original plan was to use laser cut acrylic but the companies I got quotes from could not guarantee the holes sizes would be accurate enough to be tapped. I also found out that 3mm Dibond is stiffer than 6mm acrylic as well as being a lot lighter and cheaper. The downside is that the polyethylene core is too soft and the aluminium wall too thin to tap a thread into reliably. That meant replacing all the screws with nuts and bolts, which made the machine fiddly to put together. Because the underside of the base now has screw heads protruding, the machine has to have some form of feet to raise it.
I changed the default electronics from Sanguinololu to Melzi because it includes the SD card interface and fan drive on board and uses screw connectors rather than friction fit. To stop the deeper power supply sticking out beyond the base I moved the right hand stay inwards. Kit details: Specification. A 3D printer built with MakerSlide. A simple, stable, and scalable 3D printer proposal. Barton Dring (bdring) of Buildlog.Net fame recently designed a 3D printer based on the multifunctional MakerSlide beams. MakerSlide, another of bdring’s projects, was designed to provide a standardized linear bearing for CNC digital fabrication equipment. It launched on KickStarter last year with 5x the requested funding. This new design takes advantage of the simplicity and scalability of MakerSlide. The result is a 3D printer that is easy to fabricate, easy to assemble, easily scalable for a larger build area, and is extremely stable.
Oh, and the wires are hidden inside the hollow space in the MakerSlide. Bdring is considering offering this as a kit if there is enough interest, so if you’re interested, be sure to tell him. More images after the jump. Via Buildlog.Net Make your own stuff using: 3D Printing, App Gateway. Mendel-Parts.com. Vente de pièces et composants pour la fabrication d'imprimante 3D Reprap. eMotion Tech - Reprap-France - Reprap-France - eMotion Tech.
Le FabShop. CKAB. Mendel90. I never understood why Mendel has a triangular prism frame. The way I see it, the frame only has two functions: - To hold the Y bars in a flat plane and to support the tops of the Z bars. It isn't good at doing either:The main forces on the Z bars are in the direction of the X-axis and the frame has no strength in that direction. It wobbles when the X-carriage changes direction. It also doesn't ensure the Y bars are in a flat plane because there is nothing to ensure one end triangle is not rotated slightly relative to the other. After a trip down a cobbled street in Sheffield my Mendel behaves as if one corner of the bed is lower than the other three. This is impossible because it has a flat sheet of glass on it, but it isn't obvious what needs to be adjusted to fix it but it must be the ends of the Y -bars.
The bed needs to be level to within about 0.05mm for good results printing 0.3mm layers without a raft. Other problems are: - The buttresses are bigger than they need to be. Ronthomp Mendel 1. High Speed Adept Quattro Robot handling steel balls on conveyor. Kunststoff-Schweißdraht, Schweißmaschinen und Zubehör. Filabot Personal Filament Maker for 3D Printers - Desktop Extruding System – Environmentally Friendly. Traceur/mini CNC/repstrap (imprimante 3D) low cost [Terminé] - 3DPrint - DIY: Autres projets / Electronique / Divers.