Re: Spindle trip

Hey thanks for the replay

The 0-10v is pretty instant

So all I did was to slow the acceleration on the sprint board manually and added a time delay to the mach3 config

This means the gcode will wait 15 seconds for the spindle to get up to speed

This seems to have worked around the issue and I ...
Sun 22 Nov , 2020 9:36 am
Forum: Novamill
Replies: 3
Views: 17310
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Spindle trip

Hey everyone

So my novamill is now converted over to mach3 and working mostly well

I have a slight issue with the spindle however

When I set the rpm to something low like 450 I can turn it on and off to my hearts content - and also crank it up to 5000rpm as long as the spindle first started at a ...
Sat 26 Sep , 2020 20:33 pm
Forum: Novamill
Replies: 3
Views: 17310
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Re: Bringing my Novamill back to life


Hi All,

Many thanks for your thoughts and replies. It took a long time (not a complaint) between posting my original questions and there being any kind of response here so I continued reading and went ahead anyway based on what I'd learned from around the web.

As Pete noticed, I have access to a ...
Sun 23 Aug , 2020 13:56 pm
Forum: Novamill
Replies: 35
Views: 81525
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Re: Novamill electronics

Ok so I’ve managed to get the board back in and tested turning on the enclosure after plugging in each of the plugs - 1 at a time

No smoke! - which is encouraging

I attach 3 photos below

So there are 2 photos with the eprom installed showing a flashing dot in the lower left and the top left ...
Wed 19 Aug , 2020 23:14 pm
Replies: 11
Views: 12582
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Re: Novamill electronics

Hi Martin

I took the board back home with me to replace the blown capacitor - though I do expect another failure when I return

I will try to go back with the board tonight and try ehst removing the eprom - would that be the chip with v2.1 written on it?

I wonder if there is another way to power ...
Wed 19 Aug , 2020 11:13 am
Replies: 11
Views: 12582
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Re: Novamill electronics

Managed to get on the 7 segment display now shows
Top left
Top middle
Top right

... all lit

No flashing dot

And again I don’t know what that means

Also - I added a couple photos to show the display but also the second tantalum capacitor next to the newer one is now starting to burn - you can ...
Tue 18 Aug , 2020 22:40 pm
Replies: 11
Views: 12582
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Re: Novamill electronics

So I ended up putting it back in the enclosure

I plugged up just the power in and 5v

On the 7-segment display I only get the top left segment illuminated solid and the bottom left dot flashes for a time and then goes out

Please could someone help me to understand what this means as I can’t see ...
Tue 18 Aug , 2020 22:28 pm
Replies: 11
Views: 12582
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Re: Novamill electronics

Hi

So I’ve managed to fit the tantalum capacitor and the nme0512dc

Buzzed through the connections and they seem fine

Wanted to ask if there was a way to power the board without using the power supply from the enclosure as the enclosure is currently in a friends garage and I took the board out to ...
Tue 18 Aug , 2020 20:33 pm
Replies: 11
Views: 12582
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Re: Novamill electronics

Last night I gave the board a good clean up and scraped away most of the corrosion on the pins - the worst affected area was around the rs232 port - which I guess makes sense as the enclosure fan is right near it so any dampness going through the system would naturally get stuck around this area ...
Mon 17 Aug , 2020 9:18 am
Replies: 11
Views: 12582
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Re: Novamill electronics

Great thanks

Out of interest - what is the battery for? Was it to preserve some sort of memory?

I’ll remove it anyway before I start cleaning - but do you think it doesn’t need to be attached at all? Even when I install the card back?

Cheers
Sun 16 Aug , 2020 19:00 pm
Replies: 11
Views: 12582
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Novamill electronics

Hey guys

I hope this message finds you well in these strange times

I have acquired a novamill, electronics box, and original pc with software and dongle - with the plan to learn the craft of cnc machining

I’ve managed to get the pc working and so am now working on the control board. Apparently ...
Sun 16 Aug , 2020 16:12 pm
Replies: 11
Views: 12582
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