Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: kolias on January 02, 2011, 08:01:48 PM
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Happy New Year to all........
For my new CNC router machine I was planning to get the Bosch Colt router but searching on eBay I fount this DB-200S high speed precision spindle, 110V, 1/8” tri-split collet, max. T.I.R 0.0004”, end play <0.0003”, 2 SS sealed and greased bearings, SS housing, max speed 24000 RPM, Spindle length 5” x 0.750” body diameter. Price is $120, made in USA.
I plan to engrave aluminum, wood and plastic and since I know nothing about spindles I’m asking your opinion. The price of this spindle is less than the Bosch Colt but that is not important. Also I was told that I can use an external variable speed switch I have to control the speed of this spindle
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Looks nice, any idea of the power? Got a link?
Hood
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I believe this is the Wolfgang spindle, no?
http://stores.ebay.com/Wolfgang-Engineering
Dave
EDIT: just so you realize, you still need to buy a motor to spin it.
http://cgi.ebay.com/110VAC-TB-350-CNC-Router-Spindle-Package-Deal-/170526080209?pt=BI_Tool_Work_Holding&hash=item27b4257cd1
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Right on Dave, it is the Wolfgang spindle
So is it better to get this one or go for the Bosch Colt?
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If you're going to buy the motor along with it, it's going to be much more cost than the colt.
I've heard some decent words about this for engraving so if that's all you'll be doing, it should work nicely for that.
Dave
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LOL Dave you may be right because I thought the motor is included. Your link is for a TB-350 and the one I'm looking for is DB-200S
I will have to ask the vendor
Thanks for the info, would have been a big surprise to get the thing and then find out that I also need a motor
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There is another one listed which has 2 high speed bearings which may be better for what you plan on doing with it ( additional $60 ).
Both should work for engraving as the cut depths are going to be rather shallow. The motors look like the high speed motors used on sewing machines.
There was a guy on ebay custom making them and quality look excelant some time ago. That end play is good and 1/2 thou runout will become two or three at the end of
a small end mill just somethng to note. End play is important since in fine engraving you want to be able to control the depth quite accurately and end play can start to play
in to what you may want todo.
I use hand pieces which are driven by a flex shaft and the motor is 1/4 hp. Machine Al 1/8" deep at slow ipm....small stuff. Never have any problems just doing engraving work.
To share my experience on using it for 3 axis work where i let it run for 4 hours or more my hand piece is getting up around 150 deg F and it sits inside a big block of AL.
No problem with the motor but i know that the bearings won't hold up / i dont konw when they will give out. I can always replace them and should add some cooling to the spindle.
Mine are modified spindles from Grizzly and they are better than all the Foredom ones at less than 1/3 the price.
Link shows some of the spindles i use:
http://www.machsupport.com/forum/index.php/topic,12484.msg88231.html#msg88231
The air driven ones ( Dumore, Dotco, Ingersoll Rand ) are noisy i may add. Would drive you insane if run for 4 hours!
Just some info FWIW,
RICH
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Very good info RICH, much appreciated
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Sorry but I still dont have enough info to see if these spindles are good for me.
I noticed that they come in 100 Watts or 240 Watts. Would either of these be enough to engrave aluminum or hardwood?
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I bought one last year, had to replace bearing after one month and had a lot of trouble.
Just do a search for the motor, I've seen some for only $4.95 from others seller.
Maybe mine had bad bearing but when I got it, was very good to engrave PCB, not much more than very light pass and soft material like wax.
http://www.youtube.com/watch?v=DT0xDY31ZX0
http://www.youtube.com/watch?v=g2YY6anRIRY
http://www.youtube.com/watch?v=VUDW5pQbxAY
If you have a lathe, just make one, that's what I will do.
I bought an ER8 holder with shaft http://cgi.ebay.com/New-Straight-Milling-Shank-C10-ER8-100L-Collet-Chuck-/110454114354?pt=BI_Tool_Work_Holding&hash=item19b7940832
Bought some bearing and will try making one and put a DC motor rather than AC, will be able to mount the motor at the end on the shaft rather than beside the spindle.
Jeff
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Thanks Jeff for the info, started to learn a few more things about spindles
Are any other suggested spindles out there in the same price range as Wolfgang? (about $300)
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Nicolas,
Suggest you just start looking at all the different tooling catalogs and see what you come up with. How to compare them is another story.
The prices run the range from say $50 to $1000 plus. You never know what's inside and just how they are made.
Example; ground end, balanced, high end bearings, hardened shafts, size of shaft and beaings, etc. Lets not forget the type chuck on the end or how the collet is made.
Kind of tough to judge the quality just on price.
Designing and making your owne is certainly an a good option.
LOL,
RICH
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If you'll be doing any cutting at all, I'd get the Colt.
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Thanks Gerry, I think that is the best choice
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Love this topic. I need to buy a spindle for I.D. grinding of 6mm holes. I need to add a tool post grinder to the Emco CNC lathe I retrofitted with Mac. The spindles shown here look small enough to be fitted for the job. Any new ideas are welcome.
Jorge
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I think Little Machine shop sells a kit or a small one. Don't think the spindle has any adapters for small internal grinding. A smaller electric die grinder mounted on the carriage may be just as good and
is a whole lot cheaper and uses a collet for mounting of the stones. Makita sells one along with a fixture to hold it horizontally.
COMMENT: Sold my toolpost grinders. I think it's the worst add on a person can have for a lathe. The grind dust goes all over the place no matter how you
cover up the lathe. Clean up is just a PITA.
My comment .......your lathe, ;)
RICH
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Rich
Thanks for the info. Agree completely about PITA. Its a bushing with 5mm hole that needs to be ground 8mm length, 62 Rc. tool steel. Making initial trials adapting a ceramic insert to a boring bar but its all too small...... Need to hold 0.01mm.
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Food for thought, Promech... If all you need to hold is .01mm, then making a jig for the mill, and plunging a carbide end mill might be an option, if most of the material is already removed and all you need is a finish cut. Obviously, you know allot more about the parts your holding in your hand, better than anybody on a forum. Figured I'd throw it out there, anyhow.
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I thought that my Variable Speed Bosch Colt had an RPM range of 10K-30K but after reading the manual the lowest RPM is 16K which is too high for work on Aluminum and so I’m looking for suggestions for an 110ACV or DCV Spindle
I could get the Wolfgang AC Volts spindle and use my router speed control gadget to control the RPM and hopefully it will give me 2000-3000 RPM
Or I found this 3 speed (7500, 15000, 30000) spindle for $90.00 which it has a motor working on either 110ACV or DCV. I guess if I use the 7500 RPM setting and use my router speed control gadget I should be able to get around 2000 RPM.
Any suggestions ?
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Or modify the Colt with a SuperPID and it'll be usable from 5,000-30,000.
www.superpid.com
It'll also let you control spindle speed and on/off from within Mach3, with no additional hardware needed.
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Thats great Gerry, wonder if there is any danger for motor overheating at low RPM
But reading they say is not good for variable speed control routers, although they say its possible to disable the VS but dont know if it will be easy
Is this made in USA
Anyone is using it?
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Yes, you have to disable the built in variable speed.
It's made in Australia.
I'm using one on a Porter Cable 690.
It can overheat if you push it too hard at very low rpms. However, I've found that it runs much cooler than stock, as it uses less power under most conditions. The SuperPID only supplies enough current to maintain the rpm.
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Thanks Gerry, sounds good but I have got to think how it suits my needs.
I like the SuperPID but I also like the spindle I posted before. So I have to decide which one is best for me.
Much appreciate your help