I've been a delta speed racer for a while and only decided to switch over to corexy when I saw e3d's tool changing. I'm using their method of locating the tool with the ball & groove but I'm switching out the servo for an electromagnet. I prefer to have less moving parts. The current build volume is 300x300x500. I have currently modeled regular 12mm linear rails but I will probably be switching over to a larger linear guide from igus for the gantry at the very least.
Key Features:
-Up to 5 or 6 tools depending on how I arrange the linear guide for the z axis.
-.5" MDF frame... Now many people might not like that but its cheap and I can laser cut it at my local maker space. It just needs to be sealed with the right paint and it will be darn stable
-DC motor drivers for X-Y & extruders. I've managed to find enough drivers between 13 & 25 dollars to make it worth doing. I will probably test using them for the z axis later but I have a feeling the steppers might actually be a better choice for slow moving axis.
-Encoder for the dc motor extruders is placed on the tool to allow for jam detection & proper filament movement with a bowden.
-I'm using a nice belted linear guide I found on robodigg for the Z axis. It has 500 travel, very well built, about an inch wide belt, 150 after shipping cost, & only took a week to get to my door. I'm excited to try it out.
Key Features:
-Up to 5 or 6 tools depending on how I arrange the linear guide for the z axis.
-.5" MDF frame... Now many people might not like that but its cheap and I can laser cut it at my local maker space. It just needs to be sealed with the right paint and it will be darn stable
-DC motor drivers for X-Y & extruders. I've managed to find enough drivers between 13 & 25 dollars to make it worth doing. I will probably test using them for the z axis later but I have a feeling the steppers might actually be a better choice for slow moving axis.
-Encoder for the dc motor extruders is placed on the tool to allow for jam detection & proper filament movement with a bowden.
-I'm using a nice belted linear guide I found on robodigg for the Z axis. It has 500 travel, very well built, about an inch wide belt, 150 after shipping cost, & only took a week to get to my door. I'm excited to try it out.