A 670 base will not fit on an aluminum group chair.
And the shape of back of the aluminum executive is different from the lounge. The executive is more comparable to the management chair. Compare photos below. Note how on the executive and the management chairs, a backward curve begins at the top of the armrest, while on the lounge it stays straight until the shoulder area and then curves forward.
No, an executive cannot be turned into the lounge.
Compare photos:
as a person who deals ...
as a person who deals with Herman miller all the time
there parts are so expensive , they make what you think is a simple project that people want to do or redo as i should say
become so outrageous and cost prohibitive.
I have so many nice folks who stop by and want to do little things to improve there vintage furniture and when i give them the HM price they say forget it,
You would think that HM they would want to accommodate these folks , but i have heard they get so many of the same old calls, people wanting to fix a bucket chair, emaes lounge chair,recover a lounge chair,
new stands for task chairs, that they really give the same old answer, we do not redo that kind of work any more, and send them back to the local distributor,who hates to get involved cause truthfully no money in it for them , only good customer satisfaction which more than likely they will not see much more of them on a single chair, as most of them are busy with large Health care facilities and large office projects, that HM is involved with today
NOW YOU KNOW WHY I STARTED MY BUSINESS, AND ALFI HUME STARTED HIS,
HM
LRF is right, Herman Miller charges a fortune for their parts. For a single leg/support on a Eames ESU(1 high, 2 wide) it costs $130, my unused first response was FU. I wanted to convert my 2 high/2 wide to a 1 high, so I just cut them down. Your best bet to the lounge base is Ebay, look for a full chair in poor condition and ask if they will ship only the base.
to all ....... James is ...
to all ....... James is correct all ways look to ebay first and look for the biggest junker, When they say parts they mean parts .
I redid a vintage marshmallow sofa 5 months a go the sides were bent were some grandma ran into in the garage and needed 2 new metal sides after we recovered all of the circle pads, HM hit me between the eyes for 1200.00 for two metal bars that a local fab shop could have done for 200 tops and 100 for powder coat, but my client bit the bullet and i did not have the heart to charge a penny extra , for ordering the parts, i was glad to do it for them and that was my discount. a new skeleton marshmellow bench as they call with out the marsh mellow pads would have cost 1800. and they charge 1000 for the pads in fabric, 2500. in leather , so for some reason they really make you pay through the nose, They are a wonderful company to deal with and I love my local rep who trys to do special things for us when we need to order things but for some reason i think, they HM know there is so much old stuff out there that people want to cash in on a face lift, so they hit you between the eyes, but once again if you call them for advise, they act like sorry we don't do that kind of work any more,
kinda pity isn't it.
Probably not possible
Looking at the bottom of the alu executive chairs and the alu lounge I can tell you that it is probably not possible to retrofit the executive chair into a lounge. The antlers that hold the frame of the chair onto the column are different between the chairs. Also, the column itself attaches to the base differently: the executive chair has about an 8" column that fits into a threading mechanism, allowing the seat height to be raised or lowered. The lounge has a distinctly shorter column (about 4") that is bolted into a pivot. I couldnt tell you exactly without taking the chairs apart, but my guess is that you'll find the executive column too long to fit onto a lounge base, and that the threaded executive column might not be compatible with the lounge swivel.
A side note; As much as I defend the authentic pieces I dont pretend that the manufacturing prices arent expensive. However, I dont think constantly bitching about them will help matters. Fact: Herman Miller, Knoll, Fritz Hansen etc are expensive. Lets accept that and move on.
I'll just buy the lounge chairs.
Thank you for the information, everyone. Enormously helpful. I have two beautiful orange Aluminum Group executive chairs that I'd hoped to turn into lounge chairs. But I see now that it makes more sense (aesthetically and mechanically) to buy lounge chairs. Expensive, yes--but it's a good reason to buy more beautiful furniture. : )
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