Li-Ion Battery Pack 12s 44.4V With BMSView Instructable »
3D Printed Nautilus HiFi Speakers
Yes I am using 2 controllers. The GRBL Shield has got 4 outputs. 3 for X,Y,Z and an A Axis, which is a clone of one of the first axis. You just have to set a jumper to select which axis to clone.
Hello Microchaos,see PM for CAD file.1. At first I was also worried about synchronized motors. Thats why I have small marks (cable ties) on each spindle. After approx. 20 hours of milling I cannot see a loss of steps on the rails. Both cable ties still parallel. For professional use or daily use, I would also think of a motor feedback or a connection of both spindles. But for my purpose I am very fine without that. 2. I am using exactly this stepper motors:https://www.amazon.de/ACT-Motor-23HS8430-Schrittmo...This are cheap Chinese motors, but they are really making a good job. (1,9Nm)
Hello KaareK,I already replied few days ago to your PM .. I also resent my message.best regards,Soeren
Custom Propane Fireplace
you checked your inbox ? You can find CAD file there .. best regards
The Kress 1050 will be a very good choice for this frame. One y-rail will be enough. Was milling POM on my 9kg spindle on one y-rail. The best thing is, that you can add another rail if you want later. Find CAD file in PM
The bed profiles are connected with steel brackets to the other frame profiles. Interconnection would be possible, but i did not had the need yet. Regarding BOM I just have the invoice of the online shop, but it is completely in German language.
Hello rmarkham1,I can share CAD file later via PM.I also saw the ballscrews from china and wanted to use them first. Finally i decided against it because the price difference was not big enough. Consider transportation costs, delivery time and taxes when you order from china.. Round support rails are working, I saw this on lots of DIY machines and this is of course a much cheaper solution. I decided to use this rails because of very high precision and ability to handle torque in all directions. (In the first step I only had one rail on Y and Z axis. Thats no problem with this linear bearings, even when i upgraded Y axis to two rails for more solidity. With round rails you have to plan 2 rails an all axis directly.
Hello Cornev8,I shared download link together with some comments via PM.
the milling spindle can mill steel without any problem. As the Frame is out of Aluminium, I would not really recommend this, but it is possible with small milling depth.If I would plan to mill steel, i would buy the 20 or 25mm rails instead of 15mm.Additional I would replace Aluminium mounting plates with steel plates.
Hello cl127, I added step8 with parts
A cover could sometimes really be useful. I was also thinking about this, but then only together with a new and more stable table.Milling POM is really a mess, because all small particles are static charged and sticking everywhere in the room.
3 Axis CNC Milling MachineView Instructable »