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Mike, I'll take a stab at a couple of those. Yes, the diatomaceous earth filters are the same as the swimming pool filters, on many machines, exactly that. Most manufacturers have gone to cartridge...

Charmilles has sold a lot of machines here over the years. They are now part of the George Fischer group. Many of their prior models have been retained, but technically machines from them or the...

be aware that special circuitry for burning carbide is an option on some of them.

We don't burn any carbide, but we bought an Agie Hyperspark last year and have been very happy with it.

If you...

Given the P.O.S. criterion style boring head with a large offset boring bar (held on by one screw:nono:), and an r8 interface and likely not the tightest spindle bearings (quill, if you prefer), I...

Cool project Martin.

The 52" length puts it outside the work area of most wire EDM's. It may be more suitable for plasma or water-jet cutting.

Cheers!

Roy Solomon

The trick is to cut the taper first, with the die face down, so you can pull the slug from the top.

There are times when you may want to trim the taper and the land. For example, if you have a...

Some people will run unattended jobs with open tolerances as cheaply as $25.00/hr, and intricate small diameter wire work can be upwards of $100.00/hr.

What matters as a buyer or seller of EDM...

I have a Mits FX10K, so some of what I tell you may not be directly comparable.

The maximum cutting speed is based on ideal cutting conditions, burning high quality d-2 tool steel. If you are...

Presuming a tight tolerance on 4 place decimals, and a fine surface finish greatly add to the expense of EDM. The other important point to clarify is what inside radius you could accept in the areas...

I run an EA8, and it will never match the swiss machines for accuarcy or surface finish. In particular, some EA8's were sold with only a heat exchanger, not a chiller. This kills any chance for...

Keep in mind that what Edm Specialist just said is unmitigated salesman propoganda. "How do you know when a salesman is lying? When his lips are moving" OK, that's old, but it's sadly too often true....

I was hoping someone with your particular machine would chime in, but in lieu of that, generally....

EDM's come with a book of settings, several hundred pages, that specify the electrical settings...

The electrical variance could well be enough to cause problems. On most machines they want it within 5%, yours is out of that range. Another common problem on used machines is the battery that backs...

Mat-C, you are correct that EDM has metalurgical effects on workpieces, but I'd like to highlight your "espescially older machines", to point out that it's also true that newer machines cause less...

The short answer is there's no cheap way to do what you want. The learning curve for wire EDM is quite steep, espescially with no factory support when you buy a used machine. Most people who have no...

It certainly sounds like you have enough work to justify your own machine. At that rate, you could probably justify a new one, or a used one direct from the manufacturer that would come with full...

What you need in an EDM depends a lot on what type of work you hope to do with it. What are your tolerance requirements, surface finish, work piece sizes, taper angles, production vs tooling, in...

My advice would be to use carbide tools, preferably with a diamond coating. This is how the shops that machine a lot of graphite do it.

It cuts fairly easily, but is very abrasive, and will dull...

There are certain aftermarket parts I use for my EDM's, but wire guides are not one of them. It's one of the most critical items in terms of accuarcy, so I always use OEM guides. If you do any...

The programming chapter is 5.5 Mb, the max upload limit here is 2.0 Mb. I can e-mail it to you, if you want to post an addy.

Hello all, my apologies for being away from this thread for so long. I had every intention of continuing, particularly since I received several requests to do so. An extreme upsurge in activity at...

That is a valid technique which would require grounding cables directly to the part in order to complete the circuit. Secondary grounding such as this can help mitigate the arcing problem, even...

That last line should read 85 inches per hour!

Hello all, thanks for the feedback.

Scott, I have been in manufacturing most of my adult life. I have never done any sales. I currently am responsible for one wire and one sinker. I have 7 years...

Jeff, I have cut parts as tall as 8 inches that were straight within 2 tenths. Most modern machines auto-thread, as does the one I currently run (Mitsubishi). There were a couple of attempts to...

Hi Jeff, I'd be happy to cover the wire edm portion. I do a lot of prototype sheet parts that I cut as a stack. These are small parts with features and tolerances that do not lend themselves to laser...

Hi McGyver, It sounds like you’ve got motion control covered. I’ll point out that the OEM’s use precision ground ball screws, and a final laser compensation for greater accuracy. The majority of...

Klpauba,
If you mean PCB as in "printed circuit board", the answer is no, because you can only EDM(the term would be "burn" as opposed to "mill") conductive materials. If you happened to mean...

McGyver, you are correct that many areas can be simplified if productivity is not the concern. For example, the aforementioned tension method of jockey pulley and counter weight is much simpler than...

Patrick, I am flattered that you think it sounds like I know what I'm talking about! Based on the number of views for this thread, you may be right. I don't have time for daily chapters, but perhaps...