It has been a longtime since I mess with DC circuits and such and having a stroke a few years ago did not help with the memory. I have a china 6040 with a dc spindle and I took the T-D 3 axis controller cover off and measure the voltage controlling the spindle speed. It ranged from 35 thru 56 volts DC. I bought the openbuilds black box and power supply and connectors to replace the china controller. So my question is what DC Spindle Controller do I need to connect the Black Box Analog Signal Voltage output so I can control my spindle. I am planning to build my own cnc and after I paid off my purchase of what I got so far I will buy a little more. I want to build a cnc with a 20"x24" cutting area. I never had a router cnc before or never operated one. So I figure I start small, learns the ends and out of CAD and CAM and the control software before I get something larger.
Please don't use the spindle that came with the Chinese CNC router. The collet/chuck is piece of junk. Use a palm router like Dewalt DWP611 or Makita RT0701C.
Post some pics of your machine? 6040s are available with large spindles CNC 6040 so perhaps yours is something else? Or just need some help figuring out a mounting solution? The cost of a dc spindle controller may well be more than a [dewalt + extra parts to make it fit], while still being an underpowered bad runout DC "spindle" when you are done. If at all possible, working away at the problem of how to get a Dewalt 611 onto the machine instead would be the better option, rather than trying to revive the DC one.
My mistake it is a 3040 according to the table measurements. and here are the pictures of it and the Z axis setup
Look online for "48v spindle power supply" - some takes a pwm or 0-10v signal. If you cannot find one, a 48v 500w+ PSU might work too (no speed control, but could still work) keep in mind my partiality to OpenBuilds but honestly, i'd consider (if it was mine) selling it off locally. And putting that toward a LEAD1010. Those round bar based linear rails flex a lot, you really aren't going to be able to do much on this machine. What is your intended use case? What did you want to make/work on?
Yea but right I am on a fix income that is why as soon as I get money saved up again I am going to purchase parts from open builds and put me a custom cnc together. That Lead 1010 is just a little bit to big for my shop. and thanks for the info.
You could do what I'm doing and modify the order to reduce the X or Y axis. I'm going going for a 700mm x 1000mm LEAD.
The Ox build while still a great design is getting a bit long in the tooth. Depending on what you plan to use the system for you may find screw drive more desirable than belts. You might contact the OpenBuilds part store to see if they’d be willing to create a 750x750 LEAD system. It would be a great size for a lot of shops and I’m not sure why they have never offered one. Worst case scenario though you should be able to piece one together fairly economically by splitting 1500mm lengths.
Yea but I can swap out a few C beams for drive screws. And then there is the C beam build. I would make the Y axis a little longer and X axis a little shorter. But cannot do much until I get my money saved up again.
maybe 24"x24" The only bench I got is 32"x84" I built on casters my shop is 10'x16' and I got a benchtop 13 inch planer and a rikon 10" delux bandsaw on one movable cart I built. I got a 6" jointer on another and a ridgid 4512 table saw and a few pegboards, shelves on walls and a large shelf in a corner. I want to build one to fit on one side of my bench
If you trim a lead 1010 down to 875x800 it'll come pretty close to fitting your bench. You'll need to leave the motors hanging off the front but that would give you a working area of around 24"x24".
