Blue Tees Rainmaker
Portable Doppler-radar launch monitor with a 4.3-inch color display, three standalone training modes and connected simulator capability.
Complete indoor golf simulator package
The Grater Golf Blue Tees Rainmaker Birdie Sim Package combines a portable Doppler-radar launch monitor, full-depth simulator enclosure, impact screen, short-throw laser projector, hitting mat, precut frame and protective foam into one carefully matched home-golf system.

Skip the uncertainty of piecing together an enclosure, screen, projector, launch monitor and hitting surface from unrelated systems. This package gives you the essential equipment needed to build a responsive practice and simulation space around Blue Tees Rainmaker.
Portable Doppler-radar launch monitor with a 4.3-inch color display, three standalone training modes and connected simulator capability.
Five-foot-deep freestanding enclosure with a golf-impact projection screen and black RipStop coverage across the top, sides and rear.
Bright 4,200-lumen Full HD laser projector with a short-throw lens, designed to create a large image in space-conscious simulator rooms.
A full stance-and-hitting surface with a replaceable strike area, giving the golfer a consistent foundation for indoor practice.
Size-matched 1-inch EMT frame components remove the need to source and cut the enclosure poles locally.
Wedge-shaped foam fits behind the bay trim to help cover exposed frame areas and soften rebounds from shots reaching the enclosure edges.

Portable performance data
Rainmaker combines Doppler radar with an integrated display, so it can provide immediate feedback without requiring a phone or tablet. Take it from the simulator to the driving range or backyard and keep working on the same performance fundamentals.
Know your numbers
Review essential measurements directly on Rainmaker and unlock additional calculated metrics, shot history and visual analysis through the Blue Tees LAUNCH App.
*Some metrics are generated through the Blue Tees LAUNCH App and Physics Engine rather than displayed directly on the device.

Full-depth enclosure
The Birdie Bay surrounds the projected image with five feet of black top and side coverage. Its one-piece RipStop wrapper also covers the rear, hiding frame components, screen attachments and surrounding distractions.
Dimensions below are nominal outside enclosure dimensions. The visible projection area will be smaller than the outside width and height because of the frame and surrounding trim.
| Birdie Bay Size | Image Format | Best Fit |
|---|---|---|
| 8'H Γ 10'W Γ 5'D | 4:3 | Compact-width rooms |
| 8'H Γ 13'W Γ 5'D | 16:9 | Lower-ceiling widescreen rooms |
| 9'H Γ 10'W Γ 5'D | 4:3 | Narrow rooms needing more height |
| 9'H Γ 12'W Γ 5'D | 4:3 | Larger traditional-format image |
| 9'H Γ 14'W Γ 5'D | 16:9 | Balanced widescreen installation |
| 9'H Γ 15'W Γ 5'D | 16:9 | Wide hitting area and image |
| 9'H Γ 16'W Γ 5'D | 16:9 | Large widescreen simulator room |
| 10'H Γ 16'W Γ 5'D | 16:9 | Maximum listed height and width |
The Birdie Bay itself is five feet deep, but Rainmaker is a radar launch monitor and requires additional space in front of and behind the golf ball.
Position Rainmaker directly behind the ball, level with the hitting surface and aligned with the target line.
Blue Tees recommends at least ten feet of open indoor ball flight so the radar has enough time to track the shot.
Allow at least fifteen feet from the launch monitor to the impact screen, plus additional space for the golfer, backswing and safe movement.

Bright short-throw projection
The Optoma GT2400HDR combines 4,200-lumen laser output with Full HD resolution and a fixed 0.496:1 short-throw lens. It accepts compatible 4K and HDR input while displaying a native 1920 Γ 1080 image.
The package supplies the core hitting, tracking, projection and enclosure equipment. Your final connected simulator configuration may require the following items based on how you intend to play.
Use a compatible phone or tablet for the Blue Tees LAUNCH App. Supported third-party simulation platforms may require a suitable Windows computer.
Third-party simulator licenses, subscriptions and course packages are separate unless specifically stated in the selected offer.
Final projector mounting hardware, long HDMI runs, adapters, extension cords and screen-mirroring equipment depend on your room layout.
Send Grater Golf your room width, length, ceiling height, planned ball position and preferred bay size. We can help you review Rainmaker tracking space, enclosure clearance, image ratio and approximate projector placement.
Ask Grater GolfFree standard shipping on most orders $100+ within the contiguous U.S. Eligible items may be returned within 30 days. Custom, modified, cut, installed, and made-to-order products may be final sale.