Thread: Spindle motors resonable options
Hybrid View
-
11-01-2011 #1
Hi all,
I have been looking thrugh Google trying to see what spindle motors are available at a resonable cost.
Would anyone like to comment on what spindle motors they use and how good they are?
I will be machining soft and hard woods, plastics and would also like to do aluminium sometimes.
I have had a look at the Kress models, ELTE and a couple of the chinese brand VFDs. Have I missed any?
I have also been thinking about making a belt driven spindle but trying to find a high speed servo might not be too easy or cheaply I might add.
Regards
Ian
-
11-01-2011 #2
have a look at my build log, iv made three to cover the whole speed range, they are not full proven (bearing life etc) but they do work quite well and are easy and cheap to make
jonathan may at some point work out an interface with mach for these type of spindles
-
11-01-2011 #3
I'd forgotten about that, sorry! I will look into doing it again with that servo controller soon.
I've got a bit closer with my brushless motor spindle. The chuck and ER16 collets finally arrived yesterday.
(Edit - if you saw the comment with regard to running it from VFD ignore it)
Still got to get a 12s 100A ESC for it and something to power it. Best I've got is a 6s 100a and 24v 92Ah VRLA battery. That'll get 3000rpm - so enough for some things.Last edited by Jonathan; 11-01-2011 at 07:41 PM.
-
11-01-2011 #4I'd forgotten about that, sorry! I will look into doing it again with that servo controller soon.
iv been using my larger spindle to fly cut, loving it :)
i use all three spindles at diffrent times, im well chuffed with them
-
11-01-2011 #5
-
18-02-2011 #6
Spindle motors are they expensive. I recently looked at straight shaft collet shafts £20 with a view to belt drive from a variable speed 1 hp washing machine motor www.calenterprises.co.uk/speed.html
-
18-02-2011 #7
Recently I've made myself new spindle. two taper bearings, ER20 shaft, belt and motor. cheap and very good solution. You can see it at http://malamuterun.co.uk/homemade_cnc_mill_spindle.htm . Maybe this will help a bit
-
18-02-2011 #8
It looks like you're only stopping the shaft of that spindle from moving axially with a grubscrew. Are you sure that's strong enough? Might be difficult to preload the bearings with that arrangement.
-
18-02-2011 #9
Jonathan there is two grub screws and I used Truloc shaft retainer as well both on shaft collar and the top bearing. But the forces act on shaft up the spindle or sideways, but not down(trying to tear the shaft off from the spindle, if I can put it in this way). So far it worked well for quite few hours with no problems at all. If something changes I'll post info asap
-
18-02-2011 #10
I have had a look at various bearings for making a high speed spindle and they cost a small fortune. I can get a set of 15000rpm bearings for £40 for 4 so I might go that way and give it a try.
Ian
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
BF20 spindle motor options
By lukecnc2012 in forum Machine DiscussionReplies: 4Last Post: 07-10-2015, 11:03 AM -
Using RC Brushless motors as spindle
By Jonathan in forum Brushless Spindles & MotorsReplies: 30Last Post: 20-12-2012, 08:51 PM -
options for 3020 router spindle?
By arborealad in forum Milling Machines, Builds & ConversionsReplies: 3Last Post: 19-11-2012, 10:13 PM -
water cooling options for spindle
By routercnc in forum Tool & Tooling TechnologyReplies: 24Last Post: 12-02-2012, 11:22 PM -
FOR SALE: Metabo 710W 230V Electric spindle, stepper motors, Tr nuts 20x4
By Vladimir_MD in forum Items For SaleReplies: 3Last Post: 09-04-2010, 05:24 PM
Bookmarks