daystate red wolf

[Arzrover]

As was mentioned above, you should be able to email Tony or Simon at Daystate with your sn to get a copy of the settings it was shipped with.

The pulse with represents the time that power is applied to the solenoid. The pressure settings are specific pressures that the pulse setting is applied to. The voltage is the amount that's applied to the solenoid at that pressure and pulse width. The settings are used to create a table for the processor to know how much voltage and time based on the pressure it reads from your tank. There are practical limitations, of course. Each power level is independent. You can change the pressure settings to chage the way the curve of the table operates. Hopefully what I'm relating will allow you to visualize the function. The factory tester comes up with a programming that is unique to each board. As I understand it, this represents about the most efficient relationship between the settings you can get. That's why it's highly recommended to change the pulse settings equally within each pl. If you do this, the hs will always have the same relationship to the ls. If you DO change the pulse settings unequally to level out a peak, it's REALLY important to keep the hs higher than the ls.

Hopefully this gives you a little better understanding . Remember that it's REALLY IMPORTANT to record your factory settings so you can go back at any point. The read function will tell you what's on the board and save records it to the programmer.

Bob

 

[Arzrover]

The Heliboard is a very nice unit and seems to be as well made as the GC2 board. For your application , it's main attraction would be convenience of programming. In 25 cal, 3 power levels are likely about all needed, depending on slug shooting or not. In my own case, I have barrels in every caliber so having 12 pl's is a nice feature. The ONE feature that is good AND bad on the HB is that it has no auto shutoff. It's nice if you're hunting or competing but if you leave it on and drag the battery below 8.1v (I think), you'll kill the battery... possibly unrecoverably. Don't ask me how I know.....

Bob

 

[Redwolfpaul25]

Bob.

I have finally got some air! What in your experienced opinion would be a good velocity for a .25 cal 30grn slug? Just really looking for a starting point to program this helliboard

 

[928487381]

As was mentioned above, you should be able to email Tony or Simon at Daystate with your sn to get a copy of the settings it was shipped with.

The pulse with represents the time that power is applied to the solenoid. The pressure settings are specific pressures that the pulse setting is applied to. The voltage is the amount that's applied to the solenoid at that pressure and pulse width. The settings are used to create a table for the processor to know how much voltage and time based on the pressure it reads from your tank. There are practical limitations, of course. Each power level is independent. You can change the pressure settings to chage the way the curve of the table operates. Hopefully what I'm relating will allow you to visualize the function. The factory tester comes up with a programming that is unique to each board. As I understand it, this represents about the most efficient relationship between the settings you can get. That's why it's highly recommended to change the pulse settings equally within each pl. If you do this, the hs will always have the same relationship to the ls. If you DO change the pulse settings unequally to level out a peak, it's REALLY important to keep the hs higher than the ls.

Hopefully this gives you a little better understanding . Remember that it's REALLY IMPORTANT to record your factory settings so you can go back at any point. The read function will tell you what's on the board and save records it to the programmer.

Bob

Thank you very much for your reply, I will try to make changes to my data in order to make it reply to full power. The official staff of daystate sent me more, my rifle raw data, please see

RW-2890

HPL- 2600 , 2215 , 1965

MPL- 2350 , 1985 , 1700

LPL- 2175 , 1775 , 1525

MPP- 765 , 700 , 650

LPP- 585 , 475 , 375

BITS -935

MAXF- 250

These values ​​are problematic. They look too low

I compared it with Mike's .22 rifle.

 

[Arzrover]

We had VERY good results with 33 gn NSAs on hi ..... probably low 800s velocity .... can't remember for sure, but same impact point at 100 as the King Heavies which were running sbout 860. It's been a while and I didn't take the notes, so mainly remember them being extremely good. The 22 will need a little more dwell to achieve similar velocities but chrono yours, see where it is, and go from there. With your settings , you can jump 200 microsecs to start and see how that does. Don't forget to change all 3 in the same pl by the same amount. When you're nearing max, each increment of increase in dwell will yield a much small increase in velocity.

It's been my experience that slugs like to go faster to shoot better. There's a finite amount of power available , so there will definitely be a tradeoff off weight vs velocity for best projectile. 

Bob

 

[Redwolfpaul25]

Bob.

Managed to shoot a 20 shot string on power setting 8 last night on the .25 redwolf with a 30g slug, average muzzle velocity was 934fps with a std dev of 7.93 fps , my friend says to LEAVE IT but would you leave it or try to smooth out the curve further? I also fired a 20 shot string with a 36g nielson on power setting 10 which managed a averege muzzle velocity of 878fps with a std dev of 22fps , i am just getting used to this board and it settings , but i would like to see what else i can get out of it with different settings and slug weights but things already look very interesting 

 

[ocelot27]

I don't think the voltage that the capacitor is charged to varies - at least not according to the data. The "bit" numbers are from the 10bit ADC in the microcontroller that converts analogue voltage readings from the pressure sensor into a number between 1 and 1023 (10bits). The "us" is short for microseconds and is the length of time the gate on the FET is open to allow current to flow through the solenoid. The longer the pulse duration the more/longer the valve is opened. Everything has to scale with changing pressures to keep the energy the same - that's where the tables(equations) come in. I suspect the HS and LS are constants in the equation that is used to calculate varying pulse durations based on the pressure in the reservoir.