What does taikagi 台鍵 mean?

[Stompp]

On certain auction this is mentioned as an optional extra (usually about 1000¥). could anyone please shed a light on what it is and do I need it? I'm guessing some kind of key. Could it be a frame key?

[Stompp]

Also, does someone know what 循環加工 means? It shows as an extra fee (+8.400¥ in this one: http://sa.item.rakuten.co.jp/auc-nakaiti/a/oku13081/) on some auctions. Google translates it to circulation processing but I can't make out what it could be

[Drunkenclam]

Don't know about the first. They normally put door key in katakana ドアキー As for the second. It means to make the machine cyclic. To modify the internal ball pathways so waste balls return to the front shooter tray. the same 50 balls get used again and again. The payout system is also isolated too.

[compirate]

I think the first thing is a key.

[Stompp]

Yup, it's a key. Question is, a key I need or not? On the other hand it's only 1.000¥ so maybe better be safe than sorry? If it's in fact the door key it might come in handy, no?

[Stompp]

Don't know about the first. They normally put door key in katakana ドアキー As for the second. It means to make the machine cyclic. To modify the internal ball pathways so waste balls return to the front shooter tray. the same 50 balls get used again and again. The payout system is also isolated too.

That would kind of take the fun out it, wouldn't it? Nothing goes in and nothing comes out

[Drunkenclam]

If you have small children playing. It does have benefits

[Stompp]

If you have small children playing. It does have benefits

Hmm, you've got a point there. Is this a mod you can do yourself and if so how can it be done?

[Drunkenclam]

You can do it yourself if you have a tool like a small cutting tool and some L shaped plastic.

Some info about what cuts have been made are here on a Modern Heiwa frame.
Heiwa Lupina Frame guide (identify, strip down and cyclic mods)