Tig converter

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I Agree. Free Online tig converter. TIG Converter. TIG Viewer. TIG Editor. Compare TIG Files. Merge TIG Files. Split TIG Files. TIG Metadata Viewer. So, suggestions on a postcard please or at least in a comments. Basically, if you want to "use" or make the thing yourself, then I'd assert no restrictions what-so-ever, non-commercial people should be free, free as in without cost and without restriction.

But, if a business wants to manufacture and sell in bulk, and make money from my work. Then I'd like a tiny slice of that pie. I've got a couple of projects on here, this TIG very hardware based project and a project called home cloud which is very software based. Whilst I have actually worked on these projects it's been fair to say that I've probably spent more time at beer festivals, cider festivals, motorbike festivals, on stag do's getting drunk, getting married, watching friends get married, visiting Amsterdam and doing a whole heap of work to actually pay for the bits to get two projects up and going So these entry videos were a pretty rushed job, however they did force me to layout the projects in an easy to view way.

I'm in the stage of really seeing if this is feasible, the rectifier will handle about 60Amps, 30 each and the FETS will handle around 20 amps, with 8 I have enough to position 2 either side of an H bridge. This table is used essentially as a starting point, and each output measurement is based on this. Once the output has been set it is measured and the output voltage adjusted from the signal generating controller, which will set the output of the IGBT devices, providing feedback to adjust the signal if it falls outside of parameters.

Essentially using this system allows me to take a load in this case a light bulb where the resistance starts low and increases as the filament heats up allows a specific voltage to be set, and then feed back tested against the "map" - e. As it is I've got a simple cost analysis spreadsheet.

I want the chance to use the box on an industrial supply, so if the opportunity ever comes to go to volt, this box will handle it. The fact is that these things are expensive enough to buy the first time. I don't want to need to buy them again! Though happily I'm getting my max current capabilities by running the devices in parallel, e.

This does mean that each design will be slightly different. At the moment costs are looking to break down like this. I'm toying with the idea of adding optional water cooling, as it stands I can currently use currents approaching the need for a water cooled torch.

Above I said I'd allocate an amount but mostly use what I have, this will be broadly true for the whole project, I'll re-use parts, but produce a BOM "as if" I hadn't spent half my life collecting junk.

So I've started evaluating microcontrollers for the "brain" of this system. The actual chip I'll use is still to be decided, but since I've got a few old chips laying about I'm going to start using these and plan to port code later. Esentially it seems like a good starting point. The settings the operator inputs to the machine won't be strictly analogue however. I've spent some time trying to make sense of fuel maps for my car, with the intent of tuning it , and I've more or less decided that's how I'd like this machine to work.

In this case however the machine will check the position of the switches, and detect the current flow at the output, continuously conparing what's happenning, and making adjustments to make the output make the operators wish. I believe that it would be a neat idea to enable the use of maps to select waveforms etc on this machine, that would enable people to determin what the waveform should look like. There will be a few pins left for external communication.

Allowing this ability to upload new maps or waveforms to the device means that I'd expect that a person making this device was able to decide that they may like a specific waveformation and chose that. Additionally the "maps" will be able to select a preference to ignore the pannel controls.

What this means is that if I'm performing a task that will be repetative rather than trying to remember where the dials are set or play around with them, I can create a map setting all parameters AND turn off the pannel controls within the maps. Kind of how the "limp mode" map in a car is set such that no matter what you do it won't go over a given rev range.

The actual current will be measured, and from this a delta value derived that would be used to adjust the output. The output from the chip will be a simple number, then a DAC will convert this to an analog voltage, which will power the IGBT transistors voltage controlled current device which will operate within their linear region The purpose of using maps will be to save processing time, for example, a sine calculation whilst not impossible on chip will take some time.

So the first thing to think about is exactly how will this welder converter connect to the existing welding transformer that I and you if you're wanting to build this have.

Somewhere near the top of the list of concerns when dealing with anything that plugs into the wall is or should be safety. It is tempting to just have a couple of bolts sticking out the back pf the converter box to just attach the electrode holder to and the earth clamp to.

Something that I will say is, you can just attach a connector to this and bolt is directly to the back of the machine, or even take the existing electrode wire and earth clamp and cut them up and permanently install them into the converter box hard-wiring the cheap transformer to this box. However I'm going to go a route that will "look" a bit nicer, but serve no other functional purpose. The connectors used on the higher end welding machines are like bayonet connectors, and are made by a company called Dinse -therefore I'll refer to the connectors as "Dinse connectors".

These come in various sizes, all in mm2 size ratings, - which will determine the current handling capability of the actual connector. For example: if your welder has a maximum welding current of Amps, then a 16mm2 connector will be enough.

If you plan to put a Amp supply onto the converter box, then you'll want to go with the connector 35 - 50mm2 For my welder, the cables are fixed to the transformer. I'll need to cut the cables, drill the control panel and install Dinse type connectors on the main transformer, and attach connectors to the existing earth clamp and electrode holder. In order to make it so it only works one way I'll install chassis plugs onto the tig converters back.

I'm going with the Dinse type connectors, but will buy off brand copies in order to reduce costs for myself. Next cables need to be looked at Again a simple table.

Again I'm looking for a max capacity of Amps, so will look at the amp row.