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Updated Chinese Cut50F Group Buy

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RonRock

Well-known member
Joined
Oct 6, 2007
Messages
1,173
Location
Iowa, USA

So a 50 amp plug for a 25 amp device? The cord from the unit seems to be 12 gauge, which is not rated for 25 amp I realize, but it also will not work with a 50 amp plug because of the conductor size, or insulator jacket (whatever it's called, the OD of the cable is too small)
 

amac70

Well-known member
Joined
Aug 24, 2013
Messages
95
Location
St Helens Or
got mine someday i will put it together and use it, hopefully someday soon. Unit is tiny, not what i was expecting but it looks good.
 

BoureeOne

Member
Joined
Jan 10, 2015
Messages
11
I guess this should not surprise me.... Typical when you have been waiting a long time for something....This is my tracking info.

Location Date Local Time Activity
18/06/2015 5:04 A mechanical failure has delayed delivery. We're adjusting plans to deliver your package as quickly as possible. / Delivery will be rescheduled.
Salt Lake City, UT, United States 17/06/2015 0:17 Departure Scan
Salt Lake City, UT, United States 16/06/2015 21:40 Arrival Scan
Heyburn, ID, United States 16/06/2015 18:28 Departure Scan
16/06/2015 17:18 Arrival Scan
Nampa, ID, United States 16/06/2015 14:17 Departure Scan
16/06/2015 13:36 Arrival Scan
Hermiston, OR, United States 16/06/2015 8:00 Departure Scan
16/06/2015 7:39 Arrival Scan
Spokane, WA, United States 16/06/2015 3:33 Departure Scan
Spokane, WA, United States 15/06/2015 20:48 Origin Scan
15/06/2015 15:44 The shipment has been dropped off and is now at a UPS Retail Location.
United States 13/06/2015 2:43 Order Processed: Ready for UPS
 

larry350

Active member
Joined
Jul 8, 2013
Messages
26
Location
Mid-MO
I'm sure he can only work his kids to a certain degree before the neighbors get suspicious and call the cops...
 

wbrian63

Well-known member
Joined
Mar 31, 2010
Messages
843
Location
Houston, TX
Got time to open the box last night. Nothing missing, but I must strongly stress to all purchasers here to follow Moose's suggestions to open the case up and check all the boards, etc.

In my situation, there is a board that is attached to two long standoffs near the front of the machine. One of the screws was so loose that it was sitting in the bag that surrounds the cutter. The other was attached by barely a thread. I don't know whether the board might come into contact with other internal items if left the way I found it, but it doesn't pay to take chances.

Otherwise, everything looks OK. I need to get a plug so I can test further.

I am in agreement with Moose on the connector for the trigger line - WTF? Little line through big hole with no strain relief? Granted, there's no stress on the line, as it runs coaxially with the main cord to the gun, but I can see a real problem if someone were to disconnect the main line before releasing the trigger. I'll bet that if the main line fell away free, it would rip the wires right out of the plug.

I'll be working up a solution to this design flaw.

Anyway - still in awe of what a deal I got, even before making the first cut.

BTW - if you're ready for a quick laugh, read the warnings section of the "owners manual" - did you know that it's not a good idea to use the welder for heating or charging????? Now I know what I've been doing wrong all these years!!!
 

twertsy

Well-known member
Joined
Jan 5, 2014
Messages
6,726
Location
Reedville, VA
BTW - if you're ready for a quick laugh, read the warnings section of the "owners manual" - did you know that it's not a good idea to use the welder for heating or charging????? Now I know what I've been doing wrong all these years!!!

That is likely in reference to the technique of breaking the crystals up in a CAD battery via the use of a welder and recharging it. Youtube search it. Oh, and it works great.
 

AnEv942

Well-known member
Joined
Sep 14, 2013
Messages
238
Location
Central Coast Ca
Whoo!WHOO!
p1010105s.jpg


p1010106as.jpg

I know some are still waiting... but its HERE!
After 4 months-sorta hard to believe. As I hadn't picked up plug yet I cant test. Sure hope it works as I also found some issues and felt compelled to address. Some mods and chages- probably add to the "now I've a cutter thread" but for those 'inspecting' Ill add what I found.

I'm pretty stoked- for $200 gladly play with it to get going and fix how I think it should be.
That said, Same as so far identified, main power cord nut loose, though I m replacing with longer cord. The torch connections, yup accident waiting to happen. As they're pretty long eventually get reworked- maybe some small tube or add shrink tube till the wires are restrained. But later.

What I did find was clearance issues. Middle board was tweaked pretty bad.
Like flexed downward almost 3/16".
p6180108as.jpg
I loosened the nut, top of copper L bar- you can see the board relaxed upward. Loosened the nut air/torch connection, nope wont go up any more.
p6180109as.jpg
Removed the L bracket and slotted. Checked the other side. ok
P6180124s.jpg
top right side by ground screw (removed as I'm rewiring) Noticed the small vertical board on top was under cross bar pushing it down good 1/8". I removed the side cross angle and notched. Board now setting at angle?
p6180115s.jpg
Checked other side cross bar angle and red/back wires from forward most plug were tight against it-pushing down board.
P6180127s.jpg
Removed cross bar and notched.

Lastly forward part of top main board hangs out unsupported 3", so I need to make some sort of stand off to immobilize. A good jar or vibration could easily cause board trace fail. Minor stuff really-IF this works-I should have tested 1st.

I did rework the line in the back. One was the orange gauge line. Pulled out and enlarged hole for grommet-didn't like direct metal on tube.

I'm going to get an air drier eventually, if this works-got short air line to run between cutter and drier but as I haven't picked drier up yet so plumbed small inline.
I thought Aquamooses idea for tidying up was a good idea. Unless it really bugs you I wouldn't recommend. Bit of work. However
P6180119s.jpg
Inlet is directly connected to small valve inside you need to access, removal requires a bit of effort.
P6180120s.jpg
Finally got it but painful, though mostly because I wanted valve and fitting to sandwich case. Easier if valve otherwise secured, open up thru hole case and just poke fitting thru-one of those commitment thing once started but I was regretting it. Took way too much effort but turned out nice though wouldnt do again...
 
Last edited:

JZHeyde

Well-known member
Joined
Apr 28, 2008
Messages
168
for those keeping track mine showed up today. Going to be a while before I get to play with it but glad its here. Def going to take the suggestions from others and go over the unit completely prior to using. Thanks again AquaMoose!
 

Bobf

Well-known member
Joined
Feb 16, 2012
Messages
308
Location
Poway, CA
Got mine yesterday as specified by UPS. Took the covers off and checked/tightened stuff- OK. Took the plug (Cooper 50A) off my old HF Chicago Electric mig stored out in a shed and installed on the new cutter. Verified it powered up and quit for the day. Today I made up a couple short air hoses and a filter/regulator to feed the new cutter. Set it up for .35 on the air with the trigger pulled and cut some scrap 16ga steel over a plastic bucket. nice clean cut. I didn't try anything thicker. All looks OK, no problems.
 

MoparTrucks

Well-known member
Joined
Aug 21, 2009
Messages
3,218
Location
Ozarks of Missouri
I'm jealous of you guys who have gotten them already..I am in the MO group and haven't been notified yet!

Any pictures of you guys using them? I have a project just waiting.
 
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AnEv942

Well-known member
Joined
Sep 14, 2013
Messages
238
Location
Central Coast Ca
Not using but I finally got mine wired and test cut. Getting late but anxious to verify it works threw up scrap 1/4". Pretty rusty. Having never used one and no recommendations or chart started out bout 25A, 55 on air, First thing I did, as it wasnt cutting thru, was drag the stand off thru puddle, err. Played with power and air. Think this is going to require some practice and get a feel for set up,speeds before I commit my project metals.. Have some 3/16" flat bar waiting to get cut.
IMG_1550s.jpg

Left is where I started, not stopping to clean stand off kept catching and was cutting a quite an angle. BUT cut some arcs then cut the saw tooth, like hot knife thru butter. Stoked., Only cut for a few minutes though.

Think and extra stand off (or few) is in order. That and some masks, could have been the rust but man was it dusty. Need a moose decal!
 
OP
A

Aquamoose

Well-known member
Joined
Jan 28, 2014
Messages
365
Nice to see that some of you guys are getting yours to experiment with. I've yet to touch mine. Sits pretty but that's all. I finally got things wrapped up with work and I've got time set aside to do some major shipping for the 3rd batch.

I've resolved to not play with mine until I get all of the cutters shipped, sort of like the Captain of the ship stuff, last man off. I've been feeling bad for not being able to get around to shipping more...

What I've decided to do sometime tomorrow is to update the list to reflect "acknowledgement" status because I know some of you guys are worried if I got your message or not.

Hope to make the most of you happy tomorrow when you receive your email shipment notifications!

Sean
 

Ameshel

Well-known member
Joined
Jan 2, 2015
Messages
54
Quick note from using my thermal dynamics cutter for the last 10+ years . Take your grinder and clean the spot where the grounding clamps is this will improve most cutting operation especially on rusty or painted metal. I will have to check but I think I was running my torch at around 75 psi if our new unit has a purge setting ( air flows but no cutting arc) you can see what pressure you are getting as the regulators setting is usually not the flow that you get. Remember the air is basically pushing the plasma out.


Sent from my iPhone using Tapatalk
 

bucksnort59

Well-known member
Joined
Jan 19, 2014
Messages
215
I guess this should not surprise me.... Typical when you have been waiting a long time for something....This is my tracking info.

Location Date Local Time Activity
18/06/2015 5:04 A mechanical failure has delayed delivery. We're adjusting plans to deliver your package as quickly as possible. / Delivery will be rescheduled.
Salt Lake City, UT, United States 17/06/2015 0:17 Departure Scan
Salt Lake City, UT, United States 16/06/2015 21:40 Arrival Scan
Heyburn, ID, United States 16/06/2015 18:28 Departure Scan
16/06/2015 17:18 Arrival Scan
Nampa, ID, United States 16/06/2015 14:17 Departure Scan
16/06/2015 13:36 Arrival Scan
Hermiston, OR, United States 16/06/2015 8:00 Departure Scan
16/06/2015 7:39 Arrival Scan
Spokane, WA, United States 16/06/2015 3:33 Departure Scan
Spokane, WA, United States 15/06/2015 20:48 Origin Scan
15/06/2015 15:44 The shipment has been dropped off and is now at a UPS Retail Location.
United States 13/06/2015 2:43 Order Processed: Ready for UPS

Mechanical failure?
 

donthelegend

Well-known member
Joined
Nov 7, 2011
Messages
203
Location
St. Louis, MO
After practicing on some random scraps I cut some half inch plate that's going to become two welding tables in half... There's definitely a bit of a learning curve, some sections are really straight with minimal dross, others were quite ugly and will require a lot of cleanup, but overall it handled the 1/2" plate without trouble.
0ef0ea24b10a0c3090b08be840af32d5.jpg
 

danfromsyr

Well-known member
Joined
Jan 1, 2009
Messages
11,753
Location
Cicero, NY
Hoping for a tracking number soon.. as I'll be away for the 4th of July weekend and will probably have to have a neighbor keep a eye out. :dunno:
 

Ameshel

Well-known member
Joined
Jan 2, 2015
Messages
54
Donthelegend the photo will not blow up enough for me tell you what is going wrong. When cutting plate thicker then 1/4" it is all about your technique. Using a guide bar will help keep you straight. It looks like you had no stand off on the bottom side of your cut the plasma/ dross needs some where to go or the Molten metal will adhere to the bottom. Also note depending on the water content in the cement it will shatter! If you are cutting at the right speed and angle the dross will chip off with a stick slag hammer with one bang if you are traveling to slow it will take a grinder to remove.


Sent from my iPhone using Tapatalk
 

donthelegend

Well-known member
Joined
Nov 7, 2011
Messages
203
Location
St. Louis, MO
There was an 1/8" metal plate underneath during the cut to protect the concrete and the 1/2" plate was about 3" off the floor. I think the biggest issue was maintaining a consistent cutting speed and angle. I'll try to get a couple of better pics of the actual cuts tonight.
 
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