New build with recycled parts on a ridiculous budget 120cm*60cm work area

[Desertboy]

Try it and send it back if not, eBay always sides with the buyer lol.

I'm happy with the price lol £90 for a 2.93ghz I7 desktop with 4gb of ram will do fusion 360 nicely I think for a CAM only machine. I'm sure I can get the parallel port working just wondering if this cheap ass card I bought works like a winmodem in which case it's probably useless for a CNC machine. If that's the case I might buy another card or more likely just grab another PC for the controller have a few motherboards kicking around with CPU's, ram and parallel ports on them.

[AlexDoran]

Thats what i meant return the card if it doesn't work :D

[Desertboy]

Thats what i meant return the card if it doesn't work :D

It was £2 (delivered) for the PCI card lol got PC this morning, just set it up and installing windows 7, then we'll see if the GFX card works with fusion 360.

Still waiting on my 1.5mm CY cable for the spindle (Didn't order enough last time) will be tomorrow.

Itching to get it working, but got 1/2 of it wired now, really need to sort the limit switches out but need to machine to work so I can manufacture the parts (Out of aluminium obviously) as I need to guarantee repeatability for my plan to work.

[AlexDoran]

It was £2 (delivered) for the PCI card lol got PC this morning, just set it up and installing windows 7, then we'll see if the GFX card works with fusion 360.

Still waiting on my 1.5mm CY cable for the spindle (Didn't order enough last time) will be tomorrow.

Itching to get it working, but got 1/2 of it wired now, really need to sort the limit switches out but need to machine to work so I can manufacture the parts (Out of aluminium obviously) as I need to guarantee repeatability for my plan to work.

Ah ok haha.

I just semi-finished wiring again for the second time, Proximity sensors i had were NPN & not PNP. What are the parts like? I could 3D Print temporary ones for you.

Alex

[Desertboy]

Little bit more done today, limit switches are fitted directly into the aluminium extrusion

You can just see the red microswitch at the end of the energy chain a Hiwin carriage triggers it, there's identical switch on the other side in same position.

And just under the bolt in the energy is the other switch only one bolt at moment need to find a 5mm piece of aluminium so I can fit the 2nd bolt but the edge is tight against the Hiwin rail so it's solid.

I drilled them tapped the holes, very happy how they came out. There is no Z axis switch yet will rebuild the Z axis so they will be added then.


Power supply is ready to be hooked up to the AM882's



AM882's now have all the stall protection wired in


The PC to control this now has windows 7 and Fusion 360 on it, and a parallel pci card installed. Wiring is in the energy chain just need to connect everything up, earth the spindle and connect solder that up and we can get it running.

Need to get some wiring for microswitch just going to use cheap 2 core a junction box to split the power from the home built PSU to 4 steppers and some connector plugs will pick up on way to work tomorrow.

How should I connect the CY cable to the nema cable, soldering or connectors?

[AlexDoran]

Looks ace mate good progress! Is there anything special needed in order to enable stall protection on the drivers? I have the same ones but only have them wired normally at the moment, remember seeing in the manual that it said it only works above 300RPM.

I soldered my CY cable to the motor wiring, make it easier for me as i was going 8 wires into 4.

Alex

[Desertboy]

Looks ace mate good progress! Is there anything special needed in order to enable stall protection on the drivers? I have the same ones but only have them wired normally at the moment, remember seeing in the manual that it said it only works above 300RPM.

I soldered my CY cable to the motor wiring, make it easier for me as i was going 8 wires into 4.

Alex

Just wire the output to the emergency input on your controller board then if it's missing a step the machine shuts down. You can see it's the 2 wires for stall protection next to the direction outputs on the AM882's.

On my controller I had to wire them to a connector and then to the emergency input on my BOB as I have to cram 4 wires into 1 emergency socket, it's worse for the ground I have to cram at least 7 wires into 1 lol.

[Desertboy]

Quickie question, I'm sure this is ok

I have 3 microswitches at moment 2 on the Y axis (Dual ballscrew) and 1 on the X axis, I want to wire from the Y axis microswitch to the 1 of the X Axis microswitches in series and then to the BOB X input and the other Y axis switch to the Y input is this ok?