Opinions on Kitamura Mycenter 5X?

Barbter · Jan 4, 2024

Lookahead.
Your Kitty may have specific G or M code to activate and deactivate though?
And if so, it "should" be tuned for the table weight and motors acc/dec, so that's what to use, if you need it?

Cheap end (or value for money

) machines, aren't always configured....my Chevaliers weren't and when using the G05.1, it shook the enclosure to pieces on direction changes, and left the floor of the component with a ploughed finish through mechanical shock.
That took a LOT of sorting, but ended up only being 3x parameters to tweak....

Herding Cats · Jan 4, 2024

Garwood said:
G5, G5.1?

These are new to me.

I have noticed with the corncobs I have to get the load up to atleast 30% otherwise the thin chips are a fucking nightmare.

I'm doing about a yard of chips every 3 hours.

PM me your 9900s and I'll tell you what is active as far as G5 G5.1 or G8. It's a 16iMA correct?

G05 P10000 is another one that requires a RISC board. I've spent countless hours fine tuning my 18i and 16i with a RISC

Barbter · Jan 4, 2024

Herding Cats said:
PM me your 9900s and I'll tell you what is active as far as G5 G5.1 or G8. It's a 16iMA correct?

G05 P10000 is another one that requires a RISC board. I've spent countless hours fine tuning my 18i and 16i with a RISC

....and watching your vids, yours does haul!

Garwood · Jan 4, 2024

Blew my phase converter caps again! I need real 3 phase for this level of action lol.

After I patch this RPC together I'll get the 9900 parameters dug out.

mach ramsey mn · Jan 4, 2024

What kind of phase converter are you using? I will be having a need for one in the near future.

Mud · Jan 4, 2024

Garwood said:
After I patch this RPC together

I stumbled onto this one, I wonder how big it is

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Garwood · Jan 4, 2024

mach ramsey mn said:
What kind of phase converter are you using? I will be having a need for one in the near future.

Home | Croman Converters

3 phase rotary converters

www.cromanconverters.com

I bought a 30HP from this guy about 15 years ago without any warranty. Early on I added another 25HP motor to it. I've blown the caps a few times and the owner has patched it up free of charge every time. His shop is 30 minutes from mine. I just drove over this afternoon and he gave me all the parts to fix it. He offered to fix it free, but said he was real busy and it'd be a couple weeks. I'm good with that as I'd rather not wrangler the RPC out of it's cave.

He suggested I should step up to 75HP or 100HP RPC for as often as I grenade the caps in this one, but he still gave me the parts to fix it for free. Seems like above and beyond service when he knows I'm flogging the thing and he still covers the damages.

Garwood · Jan 4, 2024

Mud said:
I stumbled onto this one, I wonder how big it is

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I had a setup exactly like that- It was a rig for powering 50HZ equipment from 60HZ power. Mine was a 10HP single phase motor driving a 12 lead generator. It was nowhere near enough power to run CNC's so I put it up for sale on Ebay and this outfit that built industrial battery chargers contacted me and said they needed it, but they couldn't buy used equipment, but they could lease it. So I ended up shipping it across country and leased it to them for $1000 a month or something around that. After about a year the checks stopped showing up. My contact wouldn't return my calls. Then months later I got a call out of the blue from the company wanting to know why they had this machine with a plaque saying it was my property. I told them they were leasing it from me and months behind on payment. The guy said the project was done and they no longer needed it. I said they could crate it up, ship it back and pay the balance or they could buy it for $5k and do whatever they wanted with it. He sent a check. I paid $200 for the thing off craigslist.

lobust · Jan 5, 2024

Phase converters are a constant nuisance when you're working with real machines, even if you have a good one.

I have a digital, load balanced, sine wave filtered rotary converter - it was an expensive unit and in truth it always surprises me what it is actually capable of, but I still spent a ridiculous amount of money to get real 3 phase installed here as the first order of business when I moved in.

You can fool yourself that the phase converter works ok and isn't that big of a deal, but after nearly 20 years working with real power, coming back to a phase converter was painful.

mach ramsey mn · Jan 5, 2024

I know the phase converters are a PITA but what’s a guy to do? Put a 100 kw generator out back? It’s funny how some machines are real sensitive and some not so much. Seems like the control doesn’t matter much as the builder.

Garwood · Jan 5, 2024

mach ramsey mn said:
I know the phase converters are a PITA but what’s a guy to do? Put a 100 kw generator out back? It’s funny how some machines are real sensitive and some not so much. Seems like the control doesn’t matter much as the builder.

I have real 3 phase here at the road, 120 feet from my shop. I was very intentional about what I bought when I was house hunting.

Real 3 phase will cost me about $15k to install. I planned to have done it years ago, but it's important I have certain things done (like finish building large buildings) before I have the county inspectors here. For the past 7+ years I've been figuring out how to manage an autoimmune disease that destroys my thyroid. Just 2 months ago my doc figured out my body doesn't convert t4 to t3 hormone like everyone else. I started some new meds and now, suddenly, I have 25+ good days a month instead of 2-3 where I'm really, truly productive.

It's exciting times. Neat to be able to solve a problem instantly instead of knowing you can figure it out, but it's going to take 2 weeks for my brain to process the right answer. Neat to wake up at 5am ready to kick ass instead of dragging my ass out of bed at 8am and drinking enough coffee to kill a small horse just to get moving.

In the past 2 months I've finished 30+ multi-year projects. I'm just wrapping up the production run of a family of 18 products I started in 2012 and never got to market.

I lost a lot of time. Now I just need this phase converter to hold on for a couple more years then I'll do real 3 phase.

Vancbiker · Jan 5, 2024

mach ramsey mn said:
I know the phase converters are a PITA but what’s a guy to do? Put a 100 kw generator out back? It’s funny how some machines are real sensitive and some not so much. Seems like the control doesn’t matter much as the builder.

So far I’m very pleased with the Phase Perfect. Expensive, but so far works, well, Perfect

. Leg to leg voltage imbalance as load changes is nil.

I’ve not had extensive rotary converter experience. How ever this quieter than any rotary I have seen and has negligible parasitic draw compared to a rotary.

mach ramsey mn · Jan 5, 2024

Sorry to hear of you health issues but glad to hear you have a handle on it. I’m battling small cell lung cancer my self. It will take the wind out of your sails too!

mach ramsey mn · Jan 5, 2024

Vancbiker said:
So far I’m very pleased with the Phase Perfect. Expensive, but so far works, well, Perfect . Leg to leg voltage imbalance as load changes is nil.

I’ve not had extensive rotary converter experience. How ever this quieter than any rotary I have seen and has negligible parasitic draw compared to a rotary.

Jees the phase perfect converters are getting really expensive. I had on quoted about a year ago and the same unit is up 50%!!! My wife’s in the electronics business and she tells me component prices are coming down…

Garwood · Jan 5, 2024

Vancbiker said:
So far I’m very pleased with the Phase Perfect. Expensive, but so far works, well, Perfect . Leg to leg voltage imbalance as load changes is nil.

I’ve not had extensive rotary converter experience. How ever this quieter than any rotary I have seen and has negligible parasitic draw compared to a rotary.

I priced out a phase perfect yesterday. Thinking if it was like $10k maybe I'd just put one on the card and sell it after real 3 phase in a few years. Nope. $23,000 for a unit my size. I'm good. I'll do real 3 phase for less.

mach ramsey mn · Jan 5, 2024

Garwood said:
I priced out a phase perfect yesterday. Thinking if it was like $10k maybe I'd just put one on the card and sell it after real 3 phase in a few years. Nope. $23,000 for a unit my size. I'm good. I'll do real 3 phase for less.

mach ramsey mn · Jan 5, 2024

One of the things you might look into if you own the property (at least that’s how it works in Minnesota) is to procure some previously experienced load center, disconnects and metering equipment. This can save you several hundreds if not thousand of dollars if you do the wiring your self.

Garwood · Jan 5, 2024

mach ramsey mn said:
One of the things you might look into if you own the property (at least that’s how it works in Minnesota) is to procure some previously experienced load center, disconnects and metering equipment. This can save you several hundreds if not thousand of dollars if you do the wiring your self.

Yeah, hanging the transformers and pulling the wire is about $5500. The rest is meter base, the transformer for the meter, the outdoor shutoff my utility requires and a cheap electricians help making sure I do it right.

Vancbiker · Jan 5, 2024

It’s nice being small. Phase Perfect for me was ~$2500 about a year ago.

lobust · Jan 5, 2024

Garwood said:
I have real 3 phase here at the road, 120 feet from my shop. I was very intentional about what I bought when I was house hunting.

Real 3 phase will cost me about $15k to install.

If someone here offered to do it for $15k I'd have bitten their hand off...

Here was about the same distance and it cost £40k which is like $50k. That hurt (a lot) but the cost of trying to run a workshop on a phase converter is that it puts such a hard ceiling on the ability to scale up.

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