Will this attachment work on the Chanpion Easybird?

Works with wheelybirds and workhorse according to Champion. The mounts on the wheelybird and easybird look very similar so you may be able to make it work with a little tinkering. http://www.championtarget.com/resources/downloads/8239_Champion_ThrowerChart.pdf

Do you sell a cover for the champion workhorse auto feed trap?

There is one on their web site. I got one there. I plan on storing my trap in my shop or garage and want to keep it free from saw dust and random debris.

What is the measurement between the mounting plates?

Not sure what you mean by mounting plates, but it depends on whether you have a wobbler installed.

Is there any way to limit the side-to-side motion to a smaller angle without disabling it completely if in a constricted area?

No built-in adjustment, but I am sure you could modify the stroke arm if you are mechanically inclined. It may be easier to mark and flag a "no-throw" zone if you're in a narrow shooting lane. It oscillates fairly fast - I wired a 12v DC motor control to slow it down for novice shooters. I will say the oscillator brings the wheely bird to a whole new level and it is well worth the money.

ASIN	B06XDSQDBV
Brand	CHAMPION
Brand Name	CHAMPION
Color	Gray
Colour	Gray
Customer Reviews	4.7 out of 5 stars 389 Reviews
Global Trade Identification Number	00604544619065
Included Components	Trap Attachment, instruction manual
Item Type Name	Clay Pigeon Thrower Attachment
Item Weight	30 Pounds
Item weight	30 Pounds
Manufacturer	Champion Traps and Targets
Material	Other
Material Type	Other
Shape	Rectangular
Size	One Size
Sport	Clay Hunting, Shooting
Sport Type	Clay Hunting, Shooting
Team Name	Champion
UPC	604544619065
Unit Count	1 Count
Warranty Description	6 months

Champion Range and Target Wobble Base for Clay Pigeon Throwers - Champion Wheelybird and Freedom Bird

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