Thread: CNC Gantry Router #A

Rod,
Your last post indicated that your spindle was 800W. Is it the 3A or 4A model?
The 800W models are listed as 65mm dia x 225mm - 3A and 80mm dia x 225mm - 4A.
I am seriously considering going to a spindle rather than my Milwarkee die grinder that is very very noisy! But I would like to be able to use up to 1/2" router bits (I have lots!). What size colletts would I need for up to 1/2" and should I be looking at the 1500W models for this? I will mainly be routing signs into hardwood.
Cheers,

Alan

Hi Alan,
I don't know the amps of this spindle as the ebay listing is gone and it is not marked on the spindle.
A 1.5kw spindle come with an ER16 collet. You need a ER20 collet for 1/2 inch shanks so that will take you to a 2.2kw spindle size.
There is less noise with the spindle but not a huge enough difference to discard the Milwaukee unless you plan to mount it on the WM.

Hi Alan,
I missed the obvious again - it is a 65mm diam so 3 amp. Sorry about that.

Great video and its great to see another brilliant machine come to life. Just curious, where did you get your cable for your steppers? Was it screened/shielded? I'm just starting to collect some electronic stuff while i still try and sort out my reduction pulleys and gantry sides and cabling seems to be pretty dear for what i was looking at.

Well done again,
Daniel

Thanks Daniel

Wiring and connectors do add up a bit. The wire I used is here. Not shielded but mutlistrand so able to take a bit of flexing without breaking. Wires are colour coded so easy to connect each end without crossing over. Limit switch wire I used microphone lead which is shielded and rubber outer sleeve.

Thanks Rod,

They certainly do add up. I originally got a quote for some lap cables (screened and flexable - Made especially for industrial machines) but at $19 +gst per meter its a little out of the range for now. I am thinking that cable looks alot better. I just found a supplier of those loud speaker connectors, locable, like XLR but a little bigger and can be colour coded. The connectors are rated to 30A continuous, a little overkill but safe to use. I think i will order all these pieces soon. Get a start on the wiring so when the aluminum parts are sorted out i should be ready to roll.

Well done again, great work.
Daniel

These work well and are economical

Jaycar PP-2010 and PS-2012

Dick Smith P-1834 and P-1824

Greg

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Hey Greg,

i have a whole stash of those that i bought ages ago, when i searched for the datasheet i wasn't too sure in using them on the new machine because they are suppost to only be rated to 3A continuous. The connectors i found aren't much dearer then those ones which is good but will keep my mind at ease. The only reason is that i will eventually run larger motors for the main axis.

Daniel

I use those.

My spindle came with a 3 pin version of these so they must be able to handle a reasonable amperage.

Those meaning the one Greg pointed to - Daniel slipped a post in between.

Im sure they can handle the current(who knows maybe the data sheet i read was for cheap chinese knockoffs), there just on the edge of what i was looking for and i'd prefere to be on the safe side, plus if i do upgrade to 640oz/in motors they need to be able to handle about 4-5amps. Just just for re-assurance. If i found the right datasheet and it said otherwise i'll jump at the chance as i have 12 sets of those connectors in my cnc piles.

Daniel.

Hi Daniel,
Wasn't trying to covince you to change you mind. You slipped a post in why I was replying. All's good.

Thats no worries at all, i didn't think you were trying to change my mind. I'd personally like it if they were ok since i'd save 40 bucks but im just over cautious. lol.

Daniel

She's a beauty Rod. Nice and fast compared to my little clunker. Plans for my new one have been put back a bit with the purchase of a new fishing boat.

Thanks John,
You will have to carve two shingles - Gone fishing for the Shed
and My other hobby is CNC for the boat.