bletchmonster
Member
- Messages
- 689
- Location
- Cheshire. England.
That looks like a proper handy piece of kit.
- Thread starter Hood
- Start date
Brad93
Member
- Messages
- 18,651
- Location
- Essex, United Kingdom
This project has been abandoned as I have just taken delivery of a very nice looking and very little used nano feeder
I need to fit a pot somehow to the end housing but there are 3 spare wires so not a big problem, just have to get a pot and some crimp terminals. I will also need to get an MB36 torch to fit this as I won't be able to use the push/pull on the end of it, or at least I don't think I will.
View attachment 137077 View attachment 137078 View attachment 137079
Is that an EWM Nano feeder?
Hood
I am obsessed.
- Messages
- 17,456
- Location
- Carnoustie, Scotland
Nope, think EWM call theirs mini drive or something like that.
Hood
I am obsessed.
- Messages
- 17,456
- Location
- Carnoustie, Scotland
I am Scottish
Hood
I am obsessed.
- Messages
- 17,456
- Location
- Carnoustie, Scotland
It is just an electric motor and some drive wheels and seems they are made by Mechafin, likely for lots of different welder manufacturers.
https://www.mechafin.co.uk/produkte/push-pull.html
Brad93
Member
- Messages
- 18,651
- Location
- Essex, United Kingdom
Does it not need to synchronize with the welder?
zeppelin builder
Member
- Messages
- 2,166
- Location
- peoples republic of scotland
This project has been abandoned as I have just taken delivery of a very nice looking and very little used nano feeder
I need to fit a pot somehow to the end housing but there are 3 spare wires so not a big problem, just have to get a pot and some crimp terminals. I will also need to get an MB36 torch to fit this as I won't be able to use the push/pull on the end of it, or at least I don't think I will.
View attachment 137077 View attachment 137078 View attachment 137079
Thats cool what make is it
Brad93
Member
- Messages
- 18,651
- Location
- Essex, United Kingdom
Lorch
Hood
I am obsessed.
- Messages
- 17,456
- Location
- Carnoustie, Scotland
Well it kind of does but according to the EWM manual, or at least my understanding of it, the motor current is monitored on both motors and the EWM alters the voltage fed to them accordingly and thus keeps them in sync.
I have just got it connected up, wire fed through, grabbed the MB25 torch I got with the R-Tech and fitted an old liner from the Binzel Push/Pull.
It does work although it seems to be struggling to keep the arc length constant. I can see the wire moving back and forth as I weld, so arc lengthens and shortens constantly, it is definitely not as smooth as it is with the Push/Pull.
Could be a few reasons for that, one could be the torch I am using as the liner wasn't fixed in as I couldn't fine a nut/collet. Also the liner is a used one I took out the Push/Pull so likely is a bit choked. I then went to try and film the weld but it was just a mess on the next attempt. No gas getting through, had a look and the polyamide liner had melted at the end of the torch and was blocking the gas.
Looks like I am going to have to go and get a MB36 just to try it out properly but not sure about the liner melting in the end. It has been too long since I used a standard mig torch with Alu I can't remember how I stopped that before as I certainly don't recall it being an issue. The Push/Pull and the Spool Gun both have metal spiral liners for the actual neck of the torch, the Push/Pull having the Polyamide the rest of the way and the Spool Gun just needs a short bit of liner.
Anyway back to the push/pull until I can get a new torch and do some further tests.
Pic of the test weld, it is on 25mm thick x 55mm wide 5083.
matt1978
www.lorch.eu
- Messages
- 3,966
- Location
- UK, Cannock
I still think you will need a 3rd party device for balancing the 2 motors but as I said before I am not a EWM expert, so perhaps Jim will be able to clarify.
I seen these used on a EWM machine before in Eire and they had a separate box (supplied by Mechanfin) to provide the syncronisation.
On the Lorch system the synrconisation is provided by a additional PCB and software, it wouldn’t work properly with our standard annolgue PCB for conventional push pulls. But again, perhaps it will be different with the EWM?
I seen these used on a EWM machine before in Eire and they had a separate box (supplied by Mechanfin) to provide the syncronisation.
On the Lorch system the synrconisation is provided by a additional PCB and software, it wouldn’t work properly with our standard annolgue PCB for conventional push pulls. But again, perhaps it will be different with the EWM?
Hood
I am obsessed.
- Messages
- 17,456
- Location
- Carnoustie, Scotland
It is starting to look that way
Just back from the big city to get a MB36 torch and a teflon liner, hooked it all up and it is just the same. I wanted a 3m torch but the smallest they had was 4m so I got that. It is half usable but not the best, it is acting kind of like it does in Super Pulse with the wire pulsing back and forth. Occasionally it will almost go back to the tip but most of the time it stays roughly where it should.
I tried to take a video but not sure if it came out or not, will have a look later this evening.
matt1978
www.lorch.eu
- Messages
- 3,966
- Location
- UK, Cannock
Sounds like the machine is struggling to maintain the arc length, which is a sign of mis syncronisation.
As a side issue, did you check the roller in the Nanofeeder? Is it marked with an A for Aluminium? Also, did you run the teflon liner straight to the rollers on the nanofeeder (which means you have to remove the brass caperilary tube) like on a normal eurofitting.
Also, next time you buy a new torch, dont get a MB 36, they are not great for Pulse welding as the neck gets too hot. Binzel do a Abimig 355 which is much better.
As a side issue, did you check the roller in the Nanofeeder? Is it marked with an A for Aluminium? Also, did you run the teflon liner straight to the rollers on the nanofeeder (which means you have to remove the brass caperilary tube) like on a normal eurofitting.
Also, next time you buy a new torch, dont get a MB 36, they are not great for Pulse welding as the neck gets too hot. Binzel do a Abimig 355 which is much better.
Hood
I am obsessed.
- Messages
- 17,456
- Location
- Carnoustie, Scotland
It does sound like that is the problem, maybe the newer EWMs can handle things better.
Yes they are the correct rollers, 1.2 A.
The teflon liner is close to the rollers but still have the brass tube in, see pic.
Thanks for the info regarding the torches, unlikely I will need another as I never use standard Mig torches, only got one for this. I do have some SS flux cored wire that I have been meaning to try out for a while so the MB36 will see some use for that I suppose.
