Appalachian Mountain Discs

Bluegrass

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Putt & Approach
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The Bluegrass is a 3D-printed putter from Appalachian Mountain Discs, made in Morristown, Tennessee, and printed in a durable 95a TPU.

The PDGA approved it on March 2, 2026 under certification 26-32, recording a 21.0 cm diameter, 1.5 cm rim, 1.6 cm height and 1.3 cm rim depth.

Appalachian Mountain Discs has not published flight numbers itself, but retailer Throwmore lists the Bluegrass at 3/5/-1/1 and notes that an official product description and plastic name are still to come. The printed TPU construction means feel varies with the print rather than with a named plastic family.

Flight

Source: Appalachian Mountain Discs

Arm speed

NoviceIntermediatePro
SpeedHow hard the disc must be thrown to fly as designed. Putters are 1 to 3, the fastest drivers 14 and up.
3
GlideHow long the disc stays in the air. More glide means more distance from the same throw.
5
TurnHow much it drifts right early in flight (right-handed backhand). More negative, more drift.
-1
FadeHow hard it hooks left as it slows down (right-handed backhand). Higher, stronger hook.
1
StabilityTurn plus fade. Negative drifts right and is easier for beginners. Positive finishes left.Turn + Fade
0

Dimensions

Source: PDGA
DiameterHow wide the disc is, edge to edge. Almost every disc is 21 to 22 cm.
21 cm
HeightHow tall the disc is lying flat. Putters are usually the tallest.
1.6 cm
Rim DepthHow deep the rim is underneath, where your fingers grip. Putters have the deepest rims.
1.3 cm
Rim ThicknessHow wide the rim is. Wider rims make faster discs that need a stronger throw.
1.5 cm
Rim Inside DiameterThe width of the flat middle, inside the rim. Bigger usually means a slower, easier disc.
18 cm
Rim Depth/Diameter RatioRim depth as a share of the disc's width. Higher means a deeper rim for its size.
6.2%
Rim ConfigurationA PDGA score for the shape of the edge. Low is sharp, like a driver. High is rounded, like a putter.
66.25
BeadA small ridge under the edge of the rim, mostly on putters. It changes how the disc feels in hand.
No

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