Search:

Hi

Fired up the router this morning to discover the latest w10 update had killed Mach3, AGAIN !
Fair enough, it is very old software, so be it.

I am planning on switching to UCCNC and am...

Well.....

I wired the driver for the A-axis into the BOB pins for the Z-axis, same result.
Looks like my eBay driver is the source of the issue.

Got any suggestions for a good replacement, 42v...

Hi all

Issue:
Long standing mill x/y/z, now adding a 4th axis.
When I power up the BOB all is good, stepper motors startup and control the axis as expected including A-axis
I can home the...

Hi all

Machine is as below:

DIY 80/20 frame build
800x600 cut area
Electronics are KTA-205 BoB driven by SmoothStepper from Peter Homann
Stepper drivers are ND556 drivers
Motors are...

Hi all

I added my webcam to the router as below and am using the CNCcam software from CNC Cam

Results below, quite happy so far.

I have read through all the posts I can find webcam with...

Nope, just cutting raw.
I have also been running a "traditional" 4 flute mill cutter at 5000RPM on HDPE at 1000mm per minute. The result is real chips, no spirals of cooked plastic, clean finish and...

Morning all

I am adding an Arduino board to by 8020 T-slot router as an environmental monitoring system.

I am using the VGA output shield from Strich Labs and so have a bit more flexibility...

Posiblt slightly o/t but head over to Home for some ideas on custom paintball shells.

HTH

Hi

I am doing a lot of work using both ABS, HDPE and Perspex and find
HS 5%co Spiral Cut Bit for Aluminium : CARBA-TEC these are brilliant.

I run my router at 2500mm/minute at about 16,000 RPM...

Hi

Pd011 is also zero, I have played with various settings for both 11 & 73 as per previous posters on this subject suggesting they both had to be right.

I did find something strange, my...

Yep, thought I was right.
Trouble is, IT DOESN'T WORK !!!:boxing:

I can get between 16000rpm and 24000rpm but no lower than 16.

I spent all day on this yesterday, cannot work it out.
The pot...

Thanks for the super quick response.
I have the manual here, from what I can work out it is Pd70 and Pd72 and Pd73 that I need to play with, correct ?

70 = 0
72 = 400
73 = 0

right now.

Hi all

This has been kicked around and and I have seen various answers but..
I am currently running a 10k pot setup as per http://www.woodworkforums.com/attachments/1/5/4/1/6/190119.attach

I...

Its alive I tell you, alive !!!
FirstCut - YouTube

Twelve months of test and re-test plus build, about $1000 over budget compared to what I told SWMBO but what the hell, it works.

Still...

Wow, nearly two months since I updated this.
Finally got some workshop time and now I have this:
DIY CNC demo - YouTube

I should get the cable carriers and limits/home done over the next few...

I cannot tell NPN or PNP, all I know is it works exactly as I wanted it to.
Yes the LED is lit when the slot it open but goes out when I block it.

Cheers

Got it working

I think the issue is that the schematic for the ZD1901 as posted on Jaycar's site is wrong compared to the physical package; the collector and emitter are reversed on the output...

Thanks Al, I will drop by the local parts store and grab some trannies tonight.
My opto must be the operate on dark type, as measured with the multimeter I get 0v at normal state and 4.99v against a...

That would be very generous of you, thanks

Hi

By "wrong" do you mean Collector and Emitter reversed ? I thought so too based on the other CNC Zone post but when i looked at figNoggle Designs: Photodarlington Optical Interrupter Switch...

Thanks Al

The opto is the ZD1901 from Jaycar here on Oz, http://www.jaycar.com.au/products_uploaded/ZD1901.pdf

Wiring is like the pic attached.

Could I trouble you to expand on the wiring...

Yeah I can but if the power fails on that circuit or some other fault occurs, Mach3 wont see it.

Howdy all

The router build is coming along well, cold weather means I am indoors doing fiddly things instead of the shed so the opto home switches are on the agenda.

I am using the circuit as...

Evening all

Attached herewith for you edification and enjoyment.
Sketchup files of some common parts I have done to create my build, thought they might be useful to someone.

Hi

The swarf issue is one I am aware of which is why I am looking at this setup for homing only; i.e. when the environment is clean. I looked at my original post and the title and now see my...

Would you care to expand on that ?

Cable is cable is cable, if the cores are big enough to handle the voltage and current I could wire it up using anything from 20AWG hookup to 2AWG monster cable....

Afternoon all

Through a fortuitous circumstance at work I now have a supply of laser pointers.

Comments appreciated on this idea:


Strip the laser pointers out of their cases leaving just...

Thanks guys. I think I will go with the screw type connectors like these
Altronics - Your One Stop Audio Visual & Electronics Supplier

mated to these
Altronics - Your One Stop Audio Visual &...

Hi all

My build thread at

http://www.cnczone.com/forums/t-slot_cnc_building/128032-proposed_t-slot_8020_build_oz.html#post1036752

did not get a response so I am widening the net. Apologies...

Saturday afternoon update time.

I was stripping some old gear at work for the dumpster and salvaged a 19" rack mount case. Perfect to house the electronics for this project.

See images below....