fake 60, real 60 or real 80 watt upgrade?

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Doug Fisher
Posts: 286
Joined: Sat Aug 20, 2016 10:42 am
Location: Atlanta, Georgia, USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby Doug Fisher » Wed Jan 04, 2017 6:16 pm

Yes, the requirement is for full machine installation, not when buying just a tube. Rabbit USA would not sell me one without a guy coming (at my expense, around $1500) to install it. This also means you have to get on their schedule which was 2-3 weeks out at the end of last summer (could be faster now). I understand their theory that they want to know the machine was delivered and set up correctly in order to minimize the chance of a warranty claim plus the half day of instruction will cut down on newbie support calls to them but it adds quite a bit to the purchase price. Boss offers it as an option, it isn't mandatory.
80 Watt 700mm x 500mm Ke Hui KH-7050 Laser (Similar to the Red Sail),T.R.
LaSea/EFR F2 Series laser tube, RuiDa RDC6442G EC controller, 2" lens, RDWorks v8.01.18, CW 5000 chiller, Chuck type of rotary attachment
Doug

Michael Dunning
Posts: 42
Joined: Sat Nov 26, 2016 11:02 pm
Location: Alabama USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby Michael Dunning » Thu Jan 05, 2017 7:37 am

Have you considered this one?

SPT C90 80W 1.25M CO2 Sealed Laser Tube

I was looking at the 60 watt since we do a lot of low power work around 10-25% on our 1 meter tube. But this is the same length and only $65 more expensive. The 22ma for 2,500 hours just squeaks under the 23ma max for my power supply, and I'm willing to trade power for life.
EBay Chinese 60W (45W actual) laser cutter, 700x500mm, (TR)
RDWorks V8.01.18 and V8.00.27
Michael

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fred ungewitter
Posts: 221
Joined: Tue Aug 16, 2016 12:55 pm
Location: East Central FL, USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby fred ungewitter » Thu Jan 05, 2017 8:51 am

You are referencing a 23ma max for the power supply. Is this a figure that you've located on the power supply? It appears that your machine might be like mine. I didn't want to spring for a more powerful tube than 60w if it meant that I had to change the power supply, but if my power supply will meet the specs with even one milliampere leeway, it might be a good choice.

I'd been taking Keith's suggestion that I don't really need more power, but by the same token, more power means more speed. More speed means less time, less time means more money. Time is money. Cocaine is money (Volunteers, John Candy, Tom Hanks, 1985)

If I can confirm that I have sufficient power reserve, I may jump on this option. At least it's in stock, although I haven't investigated shipping charges yet. That's gotta hurt.

Edit: US$145 added to the total for shipping kicks the numbers into the stratosphere for my hobby budget. Splash one eighty watt tube!
fred

Redsail clone 60w 700 x 500
home upper right
RDWorks 8.01.18
Windows 7

Emblaser A3 4w diode laser
BCN3D Sigma Dual Extruder 3d printer
LMS Mini-mill
Cube 3rd gen 3d printer (works great, for sale)
Under construction: OX CNC 1000x750 router - out of the box, still in baggies!

John Lifer
Posts: 29
Joined: Mon Dec 05, 2016 5:02 am
Location: NorthWest Arkansas

Re: fake 60, real 60 or real 80 watt upgrade?

Postby John Lifer » Thu Jan 05, 2017 5:41 pm

Check with my laser supplier, ray fine tech in China. My contact was Blanca Yan, yanblanca@yahoo.com is her email. I have a EFR model ZS 1250mm 80 watt in my machine. Now if you run a lot at very low power get a 60 watt. Tell her John sent her to you, they are good people and a good builder. I have no financial gain here, just satisfied.
Working with a Ray Fine Chinese CO2 Laser
RF-13900 1300x900 bed, 80 Watt
Using TR and RDworks V8.01.19
John in NWA

John Lifer
Posts: 29
Joined: Mon Dec 05, 2016 5:02 am
Location: NorthWest Arkansas

Re: fake 60, real 60 or real 80 watt upgrade?

Postby John Lifer » Fri Jan 06, 2017 6:52 am

Fred, one one other source that I trust to deliver a quality tube.
Thunderlaser. Chinese based, but good machines. Got email from yumiko, have had numerous back and forths on machines quote and she was always promo and decent English.
They have sale on tubes, $400 shipped to US address. I haven't priced tubes but seems good for. Quality tube. Yumiko@thunderlaser.com
Working with a Ray Fine Chinese CO2 Laser
RF-13900 1300x900 bed, 80 Watt
Using TR and RDworks V8.01.19
John in NWA

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fred ungewitter
Posts: 221
Joined: Tue Aug 16, 2016 12:55 pm
Location: East Central FL, USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby fred ungewitter » Fri Jan 06, 2017 12:12 pm

It's difficult for me to push the button that shells out all that money but it will eventually happen, I'm sure. I now have three possible sources, Rabbit Laser, ThunderLaser and RayFineTech and will continue my research. Not the most difficult task to encompass is to construct the box over the extension housing mount on the side of the cabinet. I have a collection of 3mm ABS from scrapped projection television sets that might be perfect for this application. Cheaper (free) than paying a sheet metal fabricator, and if I take care, it should look pretty good too.
fred

Redsail clone 60w 700 x 500
home upper right
RDWorks 8.01.18
Windows 7

Emblaser A3 4w diode laser
BCN3D Sigma Dual Extruder 3d printer
LMS Mini-mill
Cube 3rd gen 3d printer (works great, for sale)
Under construction: OX CNC 1000x750 router - out of the box, still in baggies!

Michael Dunning
Posts: 42
Joined: Sat Nov 26, 2016 11:02 pm
Location: Alabama USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby Michael Dunning » Sat Jan 07, 2017 2:18 am

fred ungewitter wrote:You are referencing a 23ma max for the power supply. Is this a figure that you've located on the power supply?


I made a post in your troubleshooting thread, but here's the link in case you missed it:

http://rdworkslab.com/viewtopic.php?f=17&t=1044&start=30#p6166
EBay Chinese 60W (45W actual) laser cutter, 700x500mm, (TR)
RDWorks V8.01.18 and V8.00.27
Michael

Michael Dunning
Posts: 42
Joined: Sat Nov 26, 2016 11:02 pm
Location: Alabama USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby Michael Dunning » Sat Jan 07, 2017 2:49 am

Looks like Rabbit Laser wants $70 for shipping. I can only assume that means the lower 48 because there was no place to enter a shipping address on the quote:
You do not have the required permissions to view the files attached to this post.
EBay Chinese 60W (45W actual) laser cutter, 700x500mm, (TR)
RDWorks V8.01.18 and V8.00.27
Michael

User avatar
fred ungewitter
Posts: 221
Joined: Tue Aug 16, 2016 12:55 pm
Location: East Central FL, USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby fred ungewitter » Mon Jan 09, 2017 4:10 pm

My quest continues. I'm ignoring price (mostly) and aiming my laser sights on something more domestically located, partly for the quicker shipping, as well as the "support the home country" sort of thing. It looks as though Rabbit Laser has the best combination, although my research keeps raising questions.

I've found 60W lasers with mostly consistent lengths of 1200-1250 mm, but diameters ranging from 50-60 mm. I've seen a couple 80W lasers with curiously small numbers for length and diameter, making them suspect as over-rated.

Here's a 60W description:
Specifications
Power :60W
Beam diameter:2.5mm
Actual Output(W): 60W-70W
Triggering voltage(KV): 24
Operating voltage(KV): 16
Operating current(mA): 22
Outer diameter(mm): 60
Length(mm): 1200

The beam diameter jumps right out at first. My laser fired a beam about 4-5mm diameter (when it was working) at the first mirror. I hope the beam diameter specification isn't taken at the nozzle in this example! It shows 60w-70w output power, but this is a post on Amazon from a China source, so... The diameter of the tube is a surprise. 60mm is the largest I've seen, although it would still fit in my clamps with a 1.5mm rubber cushion.

RabbitLaser's numbers are the same for length, no "boasting" about a higher than rated power output and a smaller diameter of 54mm.

I found laserdepot with a Puri 60W tube of 1240mm by 50mm. Does this mean that the smaller diameter is compensated by the greater length? One year warranty, free shipping, slightly higher price. Is my faulty recollection near to the mark that Puri is a reputable name for these blasters?

It is currently a toss-up between the US$470 Rabbit Laser (w/shipping) which is shorter and fatter than the US$475 (free shipping) LaserDepot Puri that's 4mm thinner and 40 mm longer.

Whatchall think?
fred

Redsail clone 60w 700 x 500
home upper right
RDWorks 8.01.18
Windows 7

Emblaser A3 4w diode laser
BCN3D Sigma Dual Extruder 3d printer
LMS Mini-mill
Cube 3rd gen 3d printer (works great, for sale)
Under construction: OX CNC 1000x750 router - out of the box, still in baggies!

Doug Fisher
Posts: 286
Joined: Sat Aug 20, 2016 10:42 am
Location: Atlanta, Georgia, USA

Re: fake 60, real 60 or real 80 watt upgrade?

Postby Doug Fisher » Mon Jan 09, 2017 5:48 pm

Will both fit your current tube mounts? If not, you have to factor in the price of tube mounts too.
80 Watt 700mm x 500mm Ke Hui KH-7050 Laser (Similar to the Red Sail),T.R.
LaSea/EFR F2 Series laser tube, RuiDa RDC6442G EC controller, 2" lens, RDWorks v8.01.18, CW 5000 chiller, Chuck type of rotary attachment
Doug


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