as u see . now btc is around 2k4. but i think it will up to 2k8 again. keep it and hope!!!

The latest firmware on the L3+ has an option to shut the unit down if it hits 80 degrees C.  I believe you want to stay below that temperature if you want your unit to last.

When did you start gambling online (and offline if you do not mind sharing)? Is it because of the awesome Games and Rounds forum at Bitcointalk?

Do you only start gambling after you use Bitcoin (or any other cryptocurrency) because you feel that you cannot be tracked?

An ICO wouldn't apply in this case unless your casino had its own currency. I assume in this case you mean an IPO. Regardless, that's not the way to go about it. Once you finish the site or site demo you can lay out your long term plans (similar to a business plan) to attract investors. You can decide how much equity you want to give up and for how much and can then start posting seeking for investors or contacting them individually. Nobody will inevest in an idea. They want something that has potential and/or proof of profitability.

2 to 3 btc only? While the profit can be 50%?
Are you sure about your business profits?
In my opinion, the capital of 2-3 btc from each investor will not be enough if later 50% will be profitable for investors

And for Just 2-3btc ask how could you market your site on that matter? Do you think It will work without proper promotion or advertisement? Since I don't see any serious site who runs for that amount and surely the one you will get is Heartbreak since you cannot give back some profits for your investors since you have failed to run smoothly this project, Remember this mate big amount is Seriously needed on business so that it will gain success.

I hold LITECOINS since 2 months.They are not pumping the coin i was waiting for that the worst coins buyers getting more profits

It is perfect time to buy Ripple at the moment, although its centralized but if you are looking for quick returns on your investment and want to increase(at least double) your investment in a month(or less) or so, then go with Ripple, because the way the price has moved in the past week, its almost feel like a storm is coming, similar to when it was under 3K and went to 30K. 

Nobody smart will not just give you 6,000-9,000$ . First you need to share your idea. Then interested people will contact with you and you will need to agree on their rules (because every investor want to be protected from scam). For example, your game will works on investors VPS and he will the owner of domain. Also you will not have any access to wallet storing game bankroll (but only investor) and so on. Stop thinking that there are stupid people who have free 3 BTC...

Who is going to find the house? Unless you're only going to accept micro bets with micro/capped payouts 2-3 BTC is nowhere near enough to keep the house funded. You're going to need a lot (and a lot of lots) more than that.
If you're really serious and think your casino can be profitable then I suggest you finish building it and then go to investors in order to sell some equity. Until then nobody is going to invest in something that has no evidence of its existence, competitive edge or legal framework for that matter.

Sorry to crush you dreams but give up already!
Gambling site doesn't run on 2-3 bitcoins.You need a lot more money for marketing and promotion.Did you forget the house ?
You are so over-confident that you've assumed your website would be making profits ? The market out there is saturated,your competitors spend 3-5 bitcoins every week for only advertizemnets. Still think you can make profits ?