I've been working on designing a replacement power wheel for the Fx Impact for over a year now. The concept came to me when I was tunning my gun shortly after installing the Power Plenum. As some of you may know the Power plenum tunning process is a little different then the earlier Impacts. As I tuned my gun I noticed a large standard deviation, like around 8-10 fps. This was some thing that I had not experienced before with my Impact. I had alwise had a SD of 3-4FPS. As I continued to fine tune the gun I noticed the hammer setting was a key element to getting the SD lower. Adjusting the fine adjustments of the Impact hammer is very tedious with the small set screw located in the breach and it's 1/8 turns.
I asked my why cant we have a finer adjustments on the power wheel? Well we can! And here it is, the 19 point adjustment power wheel for the Fx impact. With full 19 point detent adjustments. And I worked in some improvements to the wheel on top of the added adjustablilty.
1st The wheel still has the same ability to adjust from what was the Max to the Min with now 17 setting in the middle. It doesn't have the 1-5 and a-e setting any longer to confuse you with.
2nd The wheel uses a button head bolt with self lubricanted nylon washer under the mounting bolt. Replacing the 90 degrees counter sunk bolt. The CC bolts are designed for locking property's, not retaining knobs. By changing this it allows for the owner to adjust the how tight they want the fill when turning it. And preventing the screw from walking out when the knob is turned counter clock wise. Providing a clean smooth turn.
3rd I've increase the knob size allowing for easier adjustment. And changing the shape to a dodecagon (12 sided polygon) making easer to turn and fill the fine adjustments. And allowing for adjustment with your thumb while shooting.
4th Improving the type of material the knob is made out of. The OEM knob is made out some type of aluminum, I'm guessing 5052 or maybe 6061. This is all very good material for many different applications, but in this use the set screw pushes a dimple into the cam of the knob causing the hammer slowly change. With the Fx large jump of the knob, there is no problem. With a fine adjustment knob this would be real problem becouse the dimple would rise the lower and over build the higher making the knob useless. Also I didn't want to have to the chance of the set screw not seating into its dimple if moved away and returned to its original setting. I'm building the new knob out of a 304 stainless steel. Stainless steel offers a much higher thresh hold from dimpling. In testing I'm see no dimpling.
5th With added adjustment the new wheel allows for each setting to make about 3-8 FPS difference. (The amount fps will change with the set point of your regulator) I personal have a sweet spot, i like to have my gun FPS at it sweet spot when shooting from the bench. With the fine adjustments it allows me to make quick changes at the bench with temperatures change from round to round. Keeping me in the sweet spot.
Here the difference
Showing Dimples and early 3d printed concept
ar
As of right now Ive move from the protype to production. A local machine shop has my part on there schedule. its just a mater of time before Ill have these availability for you. If find your are interested please fill free to PM me. Mont
I asked my why cant we have a finer adjustments on the power wheel? Well we can! And here it is, the 19 point adjustment power wheel for the Fx impact. With full 19 point detent adjustments. And I worked in some improvements to the wheel on top of the added adjustablilty.
1st The wheel still has the same ability to adjust from what was the Max to the Min with now 17 setting in the middle. It doesn't have the 1-5 and a-e setting any longer to confuse you with.
2nd The wheel uses a button head bolt with self lubricanted nylon washer under the mounting bolt. Replacing the 90 degrees counter sunk bolt. The CC bolts are designed for locking property's, not retaining knobs. By changing this it allows for the owner to adjust the how tight they want the fill when turning it. And preventing the screw from walking out when the knob is turned counter clock wise. Providing a clean smooth turn.
3rd I've increase the knob size allowing for easier adjustment. And changing the shape to a dodecagon (12 sided polygon) making easer to turn and fill the fine adjustments. And allowing for adjustment with your thumb while shooting.
4th Improving the type of material the knob is made out of. The OEM knob is made out some type of aluminum, I'm guessing 5052 or maybe 6061. This is all very good material for many different applications, but in this use the set screw pushes a dimple into the cam of the knob causing the hammer slowly change. With the Fx large jump of the knob, there is no problem. With a fine adjustment knob this would be real problem becouse the dimple would rise the lower and over build the higher making the knob useless. Also I didn't want to have to the chance of the set screw not seating into its dimple if moved away and returned to its original setting. I'm building the new knob out of a 304 stainless steel. Stainless steel offers a much higher thresh hold from dimpling. In testing I'm see no dimpling.
5th With added adjustment the new wheel allows for each setting to make about 3-8 FPS difference. (The amount fps will change with the set point of your regulator) I personal have a sweet spot, i like to have my gun FPS at it sweet spot when shooting from the bench. With the fine adjustments it allows me to make quick changes at the bench with temperatures change from round to round. Keeping me in the sweet spot.
Here the difference
Showing Dimples and early 3d printed concept
As of right now Ive move from the protype to production. A local machine shop has my part on there schedule. its just a mater of time before Ill have these availability for you. If find your are interested please fill free to PM me. Mont
