Centroid lathe conversion

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Richard_W
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Centroid lathe conversion

Post by Richard_W » Sat Aug 30, 2014 12:53 pm

At work we have an old HES tape lathe. When it stopped reading the tapes we switched to a centroid conversion with new DC servo motors. So we removed the Fanuc servos and installed the kit. Then found out the website has no real support for the lathe and the G72 is backwards from normal. It wants to start from center and feed out instead of feeding in from the O.D. Blows fuses daily and now the X servo burnt out. Then they tell us the servo is not coolant proof, but coolant resistant. $1200.00 and waiting for a new servo to arrive.

Needless to say we are really sorry we bought the Centroid lathe conversion. Has that been a common problem with the Centroid lathe conversion? We could have bought a working CNC lathe for less money.

Richard W. (edit spelling)
Last edited by Richard_W on Tue Sep 02, 2014 7:31 pm, edited 2 times in total.

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Marty_Escarcega
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Re: Centroid lathe conversion

Post by Marty_Escarcega » Sat Aug 30, 2014 1:49 pm

Little more info. Did you buy the kit new or used? Is it genuine Centroid or AJAX. Did you install it or did a competent Centroid dealer install it?
I have a friend who had their EZ Pathe lathe converted and it runs fine. Issue is, the operators would rather run a HAAS.
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Richard_W
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Re: Centroid lathe conversion

Post by Richard_W » Sat Aug 30, 2014 6:00 pm

Marty_Escarcega wrote:Little more info. Did you buy the kit new or used? Is it genuine Centroid or AJAX. Did you install it or did a competent Centroid dealer install it?
I have a friend who had their EZ Pathe lathe converted and it runs fine. Issue is, the operators would rather run a HAAS.
We ordered a kit new right from Centroid. We had our maintenance guy install it and we made adapters to fit the existing ball screws. No one there except me has ever used a HAAS. Everything else is Fanuc in the shop.

What I find really odd is that I used a Centroid on a Trump bed mill and it worked just fine. So did the 2 axis on a Sharp Bridgeport type mill.

Richard W.

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Marty_Escarcega
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Re: Centroid lathe conversion

Post by Marty_Escarcega » Sun Aug 31, 2014 6:13 pm

I'm going to go out on a limb and suggest the Centroid Control was not configured/installed properly. You have quite an investment now in the control. Might be best to call out a local Centroid tech to look it over.
I take it you've not had much much with Centroid support?
"Jack of all Trades, Master of None"

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Richard_W
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Re: Centroid lathe conversion

Post by Richard_W » Sun Aug 31, 2014 6:44 pm

Marty_Escarcega wrote:I'm going to go out on a limb and suggest the Centroid Control was not configured/installed properly. You have quite an investment now in the control. Might be best to call out a local Centroid tech to look it over.
I take it you've not had much much with Centroid support?
No we haven't, centroid has not been much help and the online lathe training we were promised hasn't happened. We also found out after the fact that the lathe control is really a mill control. That is why the G72 is backwards. We were told that is the way centroid does it.

Richard W.

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Marty_Escarcega
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Re: Centroid lathe conversion

Post by Marty_Escarcega » Sun Aug 31, 2014 7:31 pm

Centroid's website shows specific controls for the lathe (T-400 & T-39):
http://www.centroidcnc.com/cnccontrols.htm

Which model control did you get?
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Richard_W
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Re: Centroid lathe conversion

Post by Richard_W » Sun Aug 31, 2014 11:08 pm

Marty_Escarcega wrote:Centroid's website shows specific controls for the lathe (T-400 & T-39):
http://www.centroidcnc.com/cnccontrols.htm

Which model control did you get?

I have to go and look since I don't run that machine. I usually run the Takisawa TC4 with the Fanuc control.

Richard W.

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Richard_W
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Re: Centroid lathe conversion

Post by Richard_W » Tue Sep 02, 2014 7:29 pm

Marty_Escarcega wrote:Centroid's website shows specific controls for the lathe (T-400 & T-39):
http://www.centroidcnc.com/cnccontrols.htm

Which model control did you get?
We got the "T400S", at least that is on the tag on the back.

Richard W.
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Marty_Escarcega
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Re: Centroid lathe conversion

Post by Marty_Escarcega » Tue Sep 02, 2014 9:58 pm

Well,
You got a lathe control. If it were me, I would be on the phone to Centroid tech support until someone could give you some advice. That was a sizeable investment to purchase. Shame to cast it aside and not pursue.
I'd like to know what they have to say about it and how this ends up.
Marty
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Re: Centroid lathe conversion

Post by backyard_cnc » Thu Sep 04, 2014 12:07 am

contact this guy: he should have straight answers for you:

http://cncservicesnorthwest.com/

Gerald

(I have a mostly completed Ajax/Centroid install done on a knee mill)

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Re: Centroid lathe conversion

Post by Loco112 » Sat Sep 06, 2014 12:21 am

I would also like to hear how well centroid resolves this.

loco112
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