[amsat-bb] Are you interested in a 70 cm ParaLindy kit?

[Curt Laumann]

Hi All,

Learning about a well-established parametric Lindenblad design, adding on
to it a bit, along with manufacturing and building (and using!) this version
of a Lindenblad antenna was really a joy over the last couple months.  I
believe other satellite enthusiasts might enjoy building it too, but
possibly the 3D printing is not a keen interest.

Not to make any profit but really just to share, I'm considering offering a
kit as described below.  Assembling this kit would result in four
parametric elements that bolt onto the aluminum dipole described in the
AMSAT article by AA2TX.  (article available in a Google share folder; see
link below)

The proposed cost of the kit would be $42.53, shipped via USPS to CONUS.  A
list of kit contents and costs is shown below.

If you're interested in this kit, please drop me a note to k7zoo at arrl.net
 If there is sufficient interest, I'll put together a limited number of
kits and ship them out.  (It's not my intent to go into the antenna
business, but just to share a bit!)

As an alternate approach:  please note there are commercial 3D printing
services from which you can order 3D parts.

Regards,

Curt / K7ZOO

*LINK TO DOCUMENTATION ABOUT THE ANTENNA*
https://drive.google.com/drive/folders/15BXhG_1jJZcUSbdn8j4leHhwdGFLSOZq?usp=sharing

*DETAILS OF PARTS IN THE KIT*
K7ZOO 3D Printed ParaLindy Support
PETG printed support structure for parasitic elements in AA2TX Lindenblad
antenna.
Price is driven by cost of material & printer maintenance.
Bulk material cost for 1 kilogram of PETG is approx. $25.
The piece is 132 grams.
Cost of material in this part: $3.30.
Estimate a little more to support printer maintenance.
$7.50

Arrow Shafts
Size 2219, length 11.75
$3.62 each, $14.48 for a set of four.
$14.48

Rubber End Caps
McMaster PN 9753K16.
10 each (8 needed + 2 spares)
 $1.50

Modeling Clay
25 grams of clay.
Used to hold arrows and seal against resin leaking during bonding
operation.
$1.00

Packing Material
Bubble wrap and/or packing peanuts.
$3.00

Shipping USPS large flat-rate box
$15.05

TOTAL $42.53