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Author Topic: How-to: X2 Mini Mill Torque and Speed increase  (Read 28486 times)

Offline NorthOf40

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How-to: X2 Mini Mill Torque and Speed increase
« on: June 07, 2009, 10:07:40 PM »
Hey all,

I came across a page showing how to get a...

Quote
+70% increase in RPM (adjustable)
+100% increase in Torque (adjustable)
Huge increase in reliability (non adjustable)

...by creating a new Motor Controller.

Check it out here: http://www.harrisson.biz/controller/power.htm

You will need a belt drive conversion to do this as the author states that the mod will break the gears.

I haven't done it to my X2, check it out, see what you think.

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Offline Bernd

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #1 on: June 08, 2009, 08:54:47 AM »
Jim,

Took a look at the site. Intereesting to say the least. I can never fathom why you'd want to run at such a high rate of spindle speed. Usally the asnswer to that one is drilling small holes. I'll have to disagree with that since I've drilled .080" holes at slower rates without breaking them. Also I think a small mill such as the X2 isn't rigid enough to with stand that kind one speed. Plus, how long will the spindle bearings hold up.

Personally I'd never mod it for higher speeds. Just my 2 cents.

Bernd
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #2 on: June 08, 2009, 11:10:23 PM »
Bernd,

All very good points :thumbup:

I would be unlikely to run the little mill at those speeds, but at lower "normal" speeds (I'm also intrigued by the mention of "more torque").

The board could serve as a cheap replacement if one ever burnt out their stock control board.
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Offline j.bain87

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #3 on: June 26, 2009, 01:16:16 AM »
Has anybody saved this information on their computer, I have tried to access the site and it just does not want to open ?
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Offline Bernd

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #4 on: June 26, 2009, 08:49:19 AM »
Hi j.bain87,

First a warm welcome to the collective.  :borg:

Apperently I was able to look at it once since I replied to the post, but can't open it today. Could be ISP troubles. Might try later and see if there's a change. And no I didn't keep the info stored on my computer.

Regards,
Bernd
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #5 on: June 26, 2009, 08:42:03 PM »
Hey j.bain87,

It looks as if harrison.biz site is down.

I did keep a copy of the linked page... :wave:
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Offline j.bain87

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #6 on: June 26, 2009, 10:19:07 PM »
North of 44, any chance of sending it to my email addy, please.

John.
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #7 on: June 27, 2009, 09:19:11 AM »
Quote from: j.bain87 on June 26, 2009, 10:19:07 PM
North of 44, any chance of sending it to my email addy, please.

John.

Yes...but I'll need an address to send it too (yours is hidden) PM me with it if ya don't want it public.
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Offline John Stevenson

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #8 on: June 27, 2009, 12:56:32 PM »
Any chance I could have a copy please.
Email listed in profile but to save you it's john [ at ] stevenson-engineers.co.uk


Many thanks.

John S.
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #9 on: June 27, 2009, 04:17:28 PM »
Quote from: John Stevenson on June 27, 2009, 12:56:32 PM
Any chance I could have a copy please.
Email listed in profile but to save you it's john [ at ] stevenson-engineers.co.uk


Many thanks.

John S.

On it's way, John.  I've sent it in .RAR and .ZIP format.  If you need it uncompressed let me know. :thumbup:
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Offline John Stevenson

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #10 on: June 27, 2009, 04:50:30 PM »
OK got it thanks.


Looked on Ebay and found the board listed but they look nothing like the one in the article ?
I did buy 5 240 volt boards from surplus centre and used 3 on jobs, non X2 / 3 related but the two I had left wouldn't work when I came to use them.

John S.
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #11 on: June 27, 2009, 05:43:00 PM »
Hi John,

I took another look on eBay and the ones I saw may be the basic board with some other electronics stuck on.

Try these guys http://www.plccenter.com/buy/PENTA+POWER/KBLC19PMMOD.

I'm NOT an expert on electronics so take the preceding with a grain of salt. :zap:

I don't have any suggestions regarding the 240V stuff either...
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Offline John Rudd

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #12 on: June 29, 2009, 07:48:17 AM »
I'd appreciate a copy of the material from the downed website please..

Email is good and is in my profile.

My mill too has the KBIC speed controller..I have circuit diagrams too if anyone needs a copy..Send me a pm if you need it.

I already have a belt conversion on my Chester Conquest mill from the Jerry Rollet design.

TIA.. :thumbup:
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #13 on: June 29, 2009, 10:31:23 PM »
On it's way... :wave:
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Offline John Rudd

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #14 on: June 30, 2009, 07:40:43 AM »
Thanks, arrived safe and sound...

One thing I'll add...when I went for the belt drive option, I changed out the bearings too..For Taper Rollers....Soooo much smoother and the machine is now much quieter than before when it had those horrible plastics gears....No more gears, no more tears. :thumbup:  :clap:

Fly cutting is a breeze....
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Offline Brass_Machine

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #15 on: June 30, 2009, 02:47:23 PM »
Quote from: John Rudd on June 30, 2009, 07:40:43 AM
Thanks, arrived safe and sound...

One thing I'll add...when I went for the belt drive option, I changed out the bearings too..For Taper Rollers....Soooo much smoother and the machine is now much quieter than before when it had those horrible plastics gears....No more gears, no more tears. :thumbup:  :clap:

Fly cutting is a breeze....

Hey John,

Which bearings did you use? Easy to do? Care to do a write up?

Eric
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Offline CrewCab

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #16 on: June 30, 2009, 03:08:13 PM »
Quote from: John Rudd on June 30, 2009, 07:40:43 AM
..when I went for the belt drive option, I changed out the bearings too..For Taper Rollers....Soooo much smoother and the machine is now much quieter than before

That sounds interesting  :thumbup: ........ is it a case of strip it, measure then source bearings John ..................   or do you have any info stashed away  :bow:

CC


Edit  ::)
 :bang: .......... oooops, sorry guys, I didn't spot "page 2" ......... so I'm really repeating what Eric's already asked, neer' mind ......... just reinforces the interest  :headbang:
« Last Edit: June 30, 2009, 03:10:44 PM by CrewCab »
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Offline John Rudd

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #17 on: June 30, 2009, 06:04:56 PM »
Guys...Yes I'll do a write up..It aint gonna happen tonite tho'...

I have some info stashed somewhere, I need to collect my thoughts.


If you dont hear anything in a couple of days it maybe because I've dozed off..gimme a prod!
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Offline CrewCab

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #18 on: June 30, 2009, 07:27:03 PM »
Quote from: John Rudd on June 30, 2009, 06:04:56 PM
..gimme a prod!


Not a problem John :coffee:





tis' in the diary for the "not too far distant future"  ::)













 honist  :med:
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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #19 on: June 30, 2009, 10:59:23 PM »
Quote from: John Rudd on June 30, 2009, 07:40:43 AM
Thanks, arrived safe and sound...

One thing I'll add...when I went for the belt drive option, I changed out the bearings too..For Taper Rollers....Soooo much smoother and the machine is now much quieter than before when it had those horrible plastics gears....No more gears, no more tears. :thumbup:  :clap:

Fly cutting is a breeze....

Yer welcome :thumbup:

P.S. I'll add my voice to those clamoring for a write up on the Taper Roller bearings :headbang:
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Offline j.bain87

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #20 on: July 01, 2009, 02:24:50 AM »
To NorthOf40, sorry for the delay, if you could try -   j.bain87@yahoo.com  -  it would be appreciated.

regards  John.
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Offline Stilldrillin

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #21 on: July 01, 2009, 05:42:26 AM »
Did I read somewhere, the Conquest bearings are the same set, both for mill & lathe?  :scratch:

ie. The lathe taper bearings (30206) fit the mill......   :thumbup:

David D
« Last Edit: July 01, 2009, 05:44:05 AM by Stilldrillin »
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Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline John Rudd

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #22 on: July 01, 2009, 06:48:43 AM »
I can confirm that the original 6206 bearings fitted to my minimill have the following dimensions:

ID 30
OD 62
Depth 16

All dims in mm.

Equivalent Taper brgs are SKF 30206

Dimensions are:

ID 30
OD 62
Depth 17.5

I have these fitted to my Chester Conquest mill, the version I have is not the current version they sell but is similar to the Warco minimill.

Hope this helps


John

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Offline NorthOf40

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #23 on: July 01, 2009, 07:21:56 AM »
Quote from: j.bain87 on July 01, 2009, 02:24:50 AM
To NorthOf40, sorry for the delay, if you could try -   j.bain87@yahoo.com  -  it would be appreciated.

regards  John.

On the way :thumbup:
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Offline j.bain87

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Re: How-to: X2 Mini Mill Torque and Speed increase
« Reply #24 on: July 02, 2009, 01:11:04 AM »
Arrived safely, thank you very much NorthOf40.
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