http://groups.yahoo.com/group/microhybrids/ Microhybrids Mon, 23 Nov 2009 20:43:31 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/865 http://groups.yahoo.com/group/microhybrids/message/865 ... Wil I used a dremil drill press and a small vice to hold the piercer. High speed low pressure, kept backing it out. I drilled 10 pieces with one drill bit Fri, 20 Nov 2009 22:33:11 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/864 http://groups.yahoo.com/group/microhybrids/message/864 I believe the 2024 tube is harder and thinnner. The hex key is a good idea I will ty it. Ed Fri, 20 Nov 2009 04:13:06 GMT anotherbigwil http://groups.yahoo.com/group/microhybrids/message/863 http://groups.yahoo.com/group/microhybrids/message/863 Hi Ed, Got my steady rest, good up to almost 1 1/8 inch- 29mm (with a little touching up), enough for anything I'll be working on for a while. Got a little Fri, 20 Nov 2009 01:16:23 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/862 http://groups.yahoo.com/group/microhybrids/message/862 The proof will be in the burning. That will be soon. Working on a thrust stand. Ed Thu, 19 Nov 2009 14:35:31 GMT Abu Bar-Fartootsi http://groups.yahoo.com/group/microhybrids/message/861 http://groups.yahoo.com/group/microhybrids/message/861 This isn't too far off from the concept being developed/tested for the "Sugar Shot to Space" (SS2S) rocket.  Because of the relatively low Isp of sugar/KNO3, Wed, 18 Nov 2009 02:44:33 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/860 http://groups.yahoo.com/group/microhybrids/message/860 Yes yes,,... this is kinda like a two stage motor with one nozzle. Two reasons to try it. 1. reduce weigth by removing the bottom part of the case 2. get a Wed, 18 Nov 2009 02:36:27 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/859 http://groups.yahoo.com/group/microhybrids/message/859 I plan to put an initiator in the usual spot... maybe some CP to help the burst disk along. Yes the estes nozzle will be used for both burns. Ed Tue, 17 Nov 2009 17:26:25 GMT Abu Bar-Fartootsi http://groups.yahoo.com/group/microhybrids/message/858 http://groups.yahoo.com/group/microhybrids/message/858 "The exposed top of the fuel grain just burns thru and shoots flame up the nozzle of the sustainer motor on top of it to ignite the 2nd stage, or in our case Tue, 17 Nov 2009 17:05:41 GMT fly_boy_bc http://groups.yahoo.com/group/microhybrids/message/857 http://groups.yahoo.com/group/microhybrids/message/857 ... No. As someone else stated there is NO charge in a "0" motor. It ignites the upper stage when the propellant burns through the top end. ... the ... Yes and Tue, 17 Nov 2009 14:44:31 GMT WDOUGWILDER@... http://groups.yahoo.com/group/microhybrids/message/856 http://groups.yahoo.com/group/microhybrids/message/856 In a message dated 11/16/2009 10:20:12 PM Eastern Standard Time, ... the 0 is time delay it still has a charge to light the upper stages because the D12-0 is a Tue, 17 Nov 2009 03:05:04 GMT fly_boy_bc http://groups.yahoo.com/group/microhybrids/message/855 http://groups.yahoo.com/group/microhybrids/message/855 "I am going to try a Dremel drill press. I picked up a Dremel adapter that will hold that small of a drill bit." That's the only method I have found to work Tue, 17 Nov 2009 02:52:48 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/854 http://groups.yahoo.com/group/microhybrids/message/854 Hi Wil Thanks for the info. I use a steady rest to groove the tubes. It will leave a mark on the outside but you can sand it out easily. What tool do you use Sun, 15 Nov 2009 20:08:36 GMT anotherbigwil http://groups.yahoo.com/group/microhybrids/message/853 http://groups.yahoo.com/group/microhybrids/message/853 Ed- I measured a couple of the 16g I have on hand, the maximum diameter anywhere on any of them was .870 inch, and maximum length was 3.440 inches. I've always Sun, 15 Nov 2009 02:58:47 GMT Flash Gordon http://groups.yahoo.com/group/microhybrids/message/852 http://groups.yahoo.com/group/microhybrids/message/852 What are the exact dimentions of a 16 gram... diameter and length. And WHat is a good source for them? I can make a tube and adaptor to grab a C6 or D12. Does Sat, 14 Nov 2009 18:08:25 GMT anotherbigwil http://groups.yahoo.com/group/microhybrids/message/851 http://groups.yahoo.com/group/microhybrids/message/851 Wow - nice! Haven't been on line much for a quite a while now, so I just came across this. You certainly got me beat, I put my motor on a 'diet', made slots,