Discussion Forum: Thread 350478

 Author: WOLKsite View Messages Posted By WOLKsite
 Posted: Nov 20, 2023 14:41
 Subject: Length variation of part 23221?
 Viewed: 76 times
 Topic: Catalog
 Status:Open
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WOLKsite (13)

Location:  Sweden, Örebro
Member Since Contact Type Status
May 4, 2013 Contact Member Buyer
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All of my 23221 are noticeably different in length (and longer than what the
name describes). Is this a common issue?
Four of these (all except the shortest one, the ones with the brighter green
rubber bands - I don't believe those are LEGO bands) are from a used copy
of 7690. The other one is from my 2007 copy of set 7691.

Of course, it is very hard to make these not bend so much... The baseplate in
the image is 48x48. The brick separators mark the lengths when straightened outs.
This increased length has pretty significant impact on 7690, putting quite a
lot of stress on the bricks. The shortest one is just short of 33 studs long,
the longest is 40.

LEGO describes these as 252 mm (31.5 studs).

 
Part No: 23221  Name: Pneumatic Aero Tube 32 x 3 x 2 1/3
* 
23221 Pneumatic Aero Tube 32 x 3 x 2 1/3
Parts: Pneumatic {Trans-Orange}
 
 Author: starbeanie View Messages Posted By starbeanie
 Posted: Nov 20, 2023 16:07
 Subject: Re: Length variation of part 23221?
 Viewed: 39 times
 Topic: Catalog
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starbeanie (10856)

Location:  USA, Virginia
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Jan 23, 2004 Contact Member Seller
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The 2 instructions show them to be the same part number.

Maybe someone cut them shorter for a project? I've done that before with
a razor knife.

In Catalog, WOLKsite writes:
  All of my 23221 are noticeably different in length (and longer than what the
name describes). Is this a common issue?
Four of these (all except the shortest one, the ones with the brighter green
rubber bands - I don't believe those are LEGO bands) are from a used copy
of 7690. The other one is from my 2007 copy of set 7691.

Of course, it is very hard to make these not bend so much... The baseplate in
the image is 48x48. The brick separators mark the lengths when straightened outs.
This increased length has pretty significant impact on 7690, putting quite a
lot of stress on the bricks. The shortest one is just short of 33 studs long,
the longest is 40.

LEGO describes these as 252 mm (31.5 studs).

 
Part No: 23221  Name: Pneumatic Aero Tube 32 x 3 x 2 1/3
* 
23221 Pneumatic Aero Tube 32 x 3 x 2 1/3
Parts: Pneumatic {Trans-Orange}
 


 Author: WOLKsite View Messages Posted By WOLKsite
 Posted: Nov 21, 2023 07:52
 Subject: Re: Length variation of part 23221?
 Viewed: 37 times
 Topic: Catalog
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WOLKsite (13)

Location:  Sweden, Örebro
Member Since Contact Type Status
May 4, 2013 Contact Member Buyer
Buying Privileges - OK
In Catalog, starbeanie writes:
  Maybe someone cut them shorter for a project? I've done that before with
a razor knife.

That wouldn't make them *longer* though. I do get the impression that these
parts were cut from a longer tube in the factory though, so I'm wondering
if perhaps the factory cuts are inconsistent?
 Author: SylvainLS View Messages Posted By SylvainLS
 Posted: Nov 21, 2023 09:05
 Subject: Re: Length variation of part 23221?
 Viewed: 28 times
 Topic: Catalog
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SylvainLS (46)

Location:  France, Nouvelle-Aquitaine
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In Catalog, WOLKsite writes:
  In Catalog, starbeanie writes:
  Maybe someone cut them shorter for a project? I've done that before with
a razor knife.

That wouldn't make them *longer* though. I do get the impression that these
parts were cut from a longer tube in the factory though, so I'm wondering
if perhaps the factory cuts are inconsistent?

Well:
1. All rolls have an end, maybe they didn’t always cut the extra bit in the end.
2. Can’t those parts be stretched?  Maybe not intentionnally: just letting them
hang in a warm room….