START HERE |
|
Register | FAQ | PM | Events | Groups | Blogs | Calendar | Mark Forums Read |
Unregistered
|
CAD/CAM R/C Helicopter CAD/CAM |
|
LinkBack | Thread Tools | Display Modes |
08-21-2011, 06:47 PM | #41 (permalink) |
Registered Users
Thread Starter
Join Date: May 2007
|
Had time to cut the mounts from aluminum today. I went ahead with the 19mm servo arms as I was using 20mm before. This should give me a bit more clearance for the scorpion motors.
I had to order a 19mm reamer and some 2.5mm taps so it will be a bit before I have it together. |
Sponsored Links | |||
Advertisement |
|
08-21-2011, 07:45 PM | #42 (permalink) |
Registered Users
|
So how soon will we be flying Kregan Helicopters?
__________________
Blade 500x, 450x, 300x, 200srx, MCPX BL, DX7 Courtesy Clerk at Safeway, Lonetree! |
08-21-2011, 08:04 PM | #43 (permalink) |
Registered Users
Thread Starter
Join Date: May 2007
|
Ha... Not sure I am ready for that. Once it is all together I might make a few for the people interested if time permits.
I still have a lot to learn about CNC machining and getting nice finish cuts. |
08-21-2011, 08:08 PM | #44 (permalink) |
Registered Users
|
What are you doing with the 19mm reamer that you cant do on your mill?
Just wondering. Nice work! |
08-21-2011, 08:42 PM | #45 (permalink) |
Registered Users
Thread Starter
Join Date: May 2007
|
The main bearing pockets... I could cut it to full size with the mill but a reamer will be more will be more accurate. Nothing worse then a sloppy hole! LOL
I also need 2.5 mm taps for the servo mounts, already had the 3mm for the side holes. I also needed screw machine length (short) drill bits for both size taps. Regular drill bits tend to wonder around, screw machine bits are about 1.5 inches long and will not wonder offline so easily. I am fully equipped with drills, taps, and hardware for small 2/56 - 10/32 inch size stuff but not so much in metric even though I like metric better then inch. |
08-21-2011, 09:38 PM | #46 (permalink) |
Registered Users
|
Cool info. Do you plan on assembling both bearing blocks on the side frames and reaming them at the same time? I guess that would be the best bearing alignment you could get.
|
08-24-2011, 10:23 AM | #47 (permalink) | |
Registered Users
Join Date: Nov 2008
|
Quote:
A boring bar is a great way to finish the bore for a bearing, then you can hit the exact dimension you want and it can be used for many different sizes. See link below for one example. http://www.use-enco.com/CGI/INSRIT?P...&PMPXNO=951762 |
|
08-24-2011, 10:28 AM | #48 (permalink) |
Registered Users
|
I 2nd the boring bar's Excellent tools
__________________
Dan Pesonen FBL, Don't think about it, DO IT. mCX2, nCPX, mCP X, Blade 400, MSH PRÔTOS, T-700N "Tri-Flow" I put that S*** on everything!" |
09-03-2011, 08:53 PM | #49 (permalink) |
Registered Users
Thread Starter
Join Date: May 2007
|
Yep a boring bar is another option and I already have one.
OK so I opted for a V7 with the servos well removed from the motor like the picture Big Fil posted. In my initial planning I had a drawing like that but the elevator servo had to be moved and that meant the loss of the stock anti roll bracket so I ended up trying place the servo's up front. That would work with a norrow motor but not a wide motor like a scorpion 4024 series. In version 7 will have a new anti roll bracket that will be screwed to the back of the upper bearing housing. It looks like everything is working out so I will cut a left side frame tomorrow. Here are some pictures. |
09-04-2011, 01:28 PM | #50 (permalink) |
Registered Users
Join Date: Mar 2011
|
Awesome work! I cant wait to see it finished.I will be the first one ordering!......
|
09-04-2011, 09:15 PM | #51 (permalink) |
Registered Users
Thread Starter
Join Date: May 2007
|
OK I am just about done test fitting. I have made and installed:
Left frame half Lower G10 frames Landing gear brackets Everything seems to be working out so I plan on pulling it apart cleaning it up and assembling it as soon as I have a bit more time. I tried glass beading the aluminum and I like the matte finish it gives so that will be done also. One it is all together I plan on ordering some black G10, gray would like nice if I can find it. I also plan on going back and tweaking the frame a bit more to lighten it some. Here are some pictures from today. |
09-05-2011, 02:28 AM | #52 (permalink) |
Registered Users
Join Date: Aug 2009
|
That is some nice work there Kelly, we all look forward to seeing the Kregan Kopter flying.
__________________
T600N DFC Brain. T700N CGY750. T600 ESP BeastX. Futaba 8FG (Link once & forget) |
09-05-2011, 04:46 PM | #53 (permalink) |
Registered Users
|
Nice!
__________________
Blade 500x, 450x, 300x, 200srx, MCPX BL, DX7 Courtesy Clerk at Safeway, Lonetree! |
09-06-2011, 08:16 AM | #54 (permalink) |
Registered Users
Join Date: Nov 2008
|
I bead blasted parts for my motorcycle and also liked the matte finish. A clear coat will keep them looking great, the uncoated aluminum discolors easily.
|
09-06-2011, 08:59 AM | #55 (permalink) |
Registered Users
Join Date: Apr 2008
|
__________________
700LE : 105HZR AR7200BX JR8917 Multi gov , JR9503 600ESP : 100AMP Castle. Scorpion Motor . AMA #962896 400 Blade : Scorpion 2221-6 ,Castle ICE 50 Sonix Head and t Align 450 pro V2 3G MKS DS95 MSR , 2 x MCPX (brushless C05 & HP05), Blade 130X. |
09-06-2011, 11:53 AM | #56 (permalink) |
Registered Users
Join Date: Dec 2010
|
How would you go about making hubs and blade grips?
__________________
|
09-10-2011, 02:33 PM | #57 (permalink) |
Registered Users
Thread Starter
Join Date: May 2007
|
Update,
I spent some time and tore everything down to finish things up. I am now starting to put is back together for a test flight. While everything was apart I did some weight comparisons: Roto Works frames, stock landing gear mount, and the push pull system weigh 9.2 oz. My upper and lower frames, bearing blocks, and landing gear mount = 9.2 oz. In order to get this in the air I need to buy another micro beast or I have to take the one I have off of my current machine so it may be take a bit to get it in the air. Here are some pictures. |
09-10-2011, 02:59 PM | #58 (permalink) |
Registered Users
|
Nice but quick question. What's with all the triangular shapes in there? Is there an engineers reason behind it?
__________________
Blade 500x, 450x, 300x, 200srx, MCPX BL, DX7 Courtesy Clerk at Safeway, Lonetree! |
09-10-2011, 04:40 PM | #59 (permalink) |
Registered Users
Join Date: Nov 2008
|
A triangle is the strongest geometric shape, just look at a Ducati motorcycle frame
|
09-10-2011, 04:42 PM | #60 (permalink) |
Registered Users
|
Triangles make for great load distribution/strengh. If you look at a roll cage or steel framework of a building, you will see the same thing.
__________________
LOGO 200, DIABOLO 550, DIABOLO 800, SOXOS 7.1 VCONTROL*NEO*TRIBUNUS*MKS*VTX*DPL8 W/BUMP CONTROL*MEANWELL |
Thread Tools | |
Display Modes | |
|
|