Hybrid View
-
16-06-2013 #1
Nice find Hank,
I thought the same as Clive last night, not seen one of them opened up so not sure about the earth...
I have asked Mark and Jonathan to have a look at this thread as i know they have worked with outrunner motors quite abit and as i think that is basically what these spindles are (i could be wrong), could be intrested in buying one as well if you do go ahead Hank bet we could get them down on price if we try !
Let me know.
.Me.Me
-
16-06-2013 #2
The way I see it, the only way the shaft wont be earthed is if they have ceramic bearings and I cant see them having those unless they are the cheaper ceramic coated balls but again, they would be bragging "ceramic bearings" if they did have even those so its a safe bet that they will be fine............. if not you may have to change bearings for some nice cheap ones :)
Edit: just had a though.... if that mount is anodised, that may isolate the earth as aluminium oxide is none conductive (or very poor) so you may have to leapfrog the gaps twixt your motor body and mount
Your mount and Z plate should be fine (via the fixings)
I would guess that those people having problems with the model you mention are suffering this slightly elusive isolator.Last edited by blackburn mark; 16-06-2013 at 11:42 AM.
-
16-06-2013 #3
asbo: PM sent.
The thing is I want a new spindle for PCBs.....my main requirement is actually low noise (I've cordoned off a downstairs room in our house & deemed it "man cave")...I've neighbours to consider & of course my wife will surely get more than a little p1ssed with the sound of a CNC spindle constantly whirring if its too loud....since I'm only milling FR4 & the odd bit of acrylic, a water cooled spindle seems excessive (& just adds a lot of weight to the Z axis)
the zen toolworks spindle is stupidly quiet.
(& in this video it actually sounds a bit louder than it typically does in other videos I've seen with the zen spindle)
Edit: ok, found it - Here's the video that first caught my attention about how ludicruously quiet the Zen spindle is...
(you have to do a double take to actually suss the spindle is on!)Last edited by Lee Roberts; 16-06-2013 at 12:18 PM. Reason: added vids
Thread Information
Users Browsing this Thread
There are currently 2 users browsing this thread. (0 members and 2 guests)
Similar Threads
-
WANTED: 2.2 KW Chinese Spindle
By Chaz in forum Items WantedReplies: 2Last Post: 17-06-2013, 10:03 AM -
eBay: 300W 12V-48V DC High speed air cooled spindle motor for engraving milling
By Swarfing in forum Items On eBay UKReplies: 0Last Post: 16-06-2013, 01:33 PM -
dc motor - spindle / shaft drive
By dsc in forum Spindles & Drive MotorsReplies: 21Last Post: 01-06-2013, 10:42 AM -
WANTED: Chinese 1.5kw spindle/vfd
By Philly in forum Items WantedReplies: 5Last Post: 10-02-2013, 11:44 AM -
WANTED: Spindle holder for 1.5kw Chinese spindle.
By jcb121 in forum Items WantedReplies: 19Last Post: 14-10-2011, 02:07 PM
Bookmarks