Design of small router (700x900) for aluminium

[Edward]

I've just finished making the toroidal power supply as per instructions by your posts here in this forum. Working well. Here is the video testing one of the four steppers in slow jog, then fast jog and then fast rapid at 3000rpm.

m_c will be partial to the lovely control board. The driver is an EM806. The microstep was set at 1600

The transformer is 24V-24V, it gives me 70V output with the driver connected. 3x capacitors 4700uf, 100V, 105deg. Bleeder resistor is 3K9 5W with Led in series. With nothing connected is discharges the capacitors completely in around 4 mins. With one driver, in 7 seconds. Slow blow 5A fuse in the 240V input.

[EddyCurrent]

Excellent result

[routercnc]

Looking good Edward.

[Edward]

Thanks guys. I looked at yours when I was making it. I devoured the forum for info:)

Now the next thing was to run two motors Master/Slave each with their own driver. The controller being Kflop, I had to change a couple of things in the init file to assign an axis as a slave. It was easier than expected. Next is to write or modify an existing C file to do the homing.

I already have piles of tooling plate from various sources waiting to be machined over Xmas and beyond, as I am using my milling machine to build the router. One of the plate suppliers was Click Metal, I was impressed that I ordered on Sunday evening and got it delivered by Tuesday morning, and it was a big order with lots of cuts, so I will use them again in the future.

I also got my TBI ballscrews from China, the same guys that Zeeflyboy ordered from. For anyone interested, search for TOPPER in Aliexpress and then ask to communicate with John. Very good service, knowledgeable, polite, quick, you couldn't ask for better service. Received them around 12 days from order, machined exactly to specs. Nothing was a problem for them. I have C5 grade with double ballnuts, (except the Z, just single ballnut). What can I say, they look excellent, but we'll see what they are like once they are installed.


Edward