The motor/belt mounting plates shown position the z-axis motors on top vs the bottom of the machine. The top plates or motor/belt mounting plates that mount the idler pulleys have recently changed as well. We’ll probably make some changes such as reorienting the the y-axis linear rail into a vertical position similar to the RailCore but the current horizontal version will be easier to adapt an E3D Toolchanger. The reduced machining time and minimized waste helps but it’s a compromise. We currently use c-shaped aluminum stock because it reduces machining time. The carriage and gantry are designed to be light weight and strong. SolidCore XY MechanismĬarriage / Gantry SolidCore CoreXY 3D Printer Carriage Carriage Design The XY mounts have slots to allow the belt tension to be applied by pulling the motors back. XY Mechanism Idler Mount XY Mechanism Idler Mount SolidCore XY Mechanism With Nema 17 Belt Tensioningīelt tensioning is done with the XY motor mounts. The aluminum components are also less likely to breakdown over time when introduced to the forces and heat from repeated use. Solid all metal parts are durable and less likely to deflect at high printing speeds.
But we want people to have the option to use 3d printed parts so they can upgrade later on. All-metal-parts and components will give us the durability and repeatablility needed. The SolidCore aluminum parts makes the printer into a highspeed workhorse for repeated use. CoreXY Belt Path – Crossing Belts All Metal Parts All Metal Parts Kit Or if you’re aiming for a specific build area, you can input the data and it will output the frame and rail length options.
Minimizing design constraints of overall 3d printer length and width makes the machine completely scalable and customizable.Įventually we would like to have a spreadsheet or configuration tool that will allow you to input the current frame or linear rails that someone already owns and output length and rail options. This mechanical arrangement is better for adding an enclosure and scaling up the 3d printer size to a larger build area.
The SolidCore CoreXY design has the motor and idler parts assemble to the inside corners of the frame. Think of it as an ecosystem of parts that can be arranged in different configurations and adapted for unique applications.īuild Volume – Scalability SolidCore Carriage Belt Path Our long term goal is to is to build a modular platform, not just a printer. missing steps, that happen with fast accelerations and jerk rates and increases these artifacts.ģD Distributed Documentation corexy-motor-mounts SolidCore CoreXY Mechanical Arrangement A heavier carriage also increases these artifacts. Reverberations that happen with fast accelerations and jerk rates. The moving mass from a direct drive extruder from the size or weight at higher print speeds.
Bowden gives you a lightweight carriage design and is better for higher acceleration.Direct drive gives you more control over the extruders and better print for flexible materials.The difference in acceleration is in print time and can make a noticeable difference. SolidCore Carriage Bowden vs Direct DriveĪ Bowden setup will let you have higher acceleration but a direct drive extruder will give you higher feedrate. The belt sections between motor mounts and idler mounts need to be parallel with the axis as the gantry travels across. Belt thickness must be taken into account when laying out your pulleys. Belt segment that changes length must be parallel to the axis as it moves to avoid racking or other undesired motion that can occur. Otherwise racking or belt tensioning issues may occur. Belt tensioning can change when the belt length changes as the gantry moves.
If you want accurate motion, you need a CoreXY 3d printer design with straight and parallel belt paths. Modular Platform SolidCore CoreXY Mechanism Belt Path And Tensioning