Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Mikado Logo Helicopters


Mikado Logo Helicopters Mikado Logo Helicopters Discussion


Reply
 
Thread Tools Display Modes
Old 06-28-2012, 06:34 PM   #1
dswitkin
Registered Users
 
Posts: 1,297
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default Logo 500 Tail And Boom Upgrade Project

I thought I'd start a build thread about my latest project. The idea was to upgrade my Logo 500 using the 25mm boom from the Logo 600 along with its open CF tailcase, while still running 550mm blades. The result should be stiff enough not to use boom supports (the stock boom is 20mm), which means no horizontal fin either.

Here's a sneak peak at the result. I'm looking forward to your feedback.

Cheers,
Daniel
Attached Thumbnails
Click image for larger version

Name:	DSCF1638.JPG
Views:	629
Size:	77.1 KB
ID:	327790  

Last edited by dswitkin; 06-29-2012 at 09:10 AM..
dswitkin is offline        Reply With Quote
Old 06-28-2012, 06:35 PM   #2
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default Parts To Buy

After some research comparing the two manuals, it turns out you only need four part numbers at a bare minimum. Here's my order with prices from RH:

MIK4228 Carbon Tail Rotor Case Set for LOGO 600 $70.99
MIK4139 Rudder Control Guide For 25mm Tailboom $6.99
MIK4091 Logo 600 Tail Boom Holder $6.99
MIK4098 Tail Boom LOGO 600-3D $19.99

I reused a bunch of parts from the stock Logo 500, including the control lever, tail shaft and pulley, and the entire slider and grips.

UPDATE: You may want to get MIK4074 as well, which is the longer tail shaft. See post #5.

The last picture shows all the leftover parts which are no longer needed. Goodbye, boom supports! See you in hell!
Attached Thumbnails
Click image for larger version

Name:	DSCF1607.JPG
Views:	297
Size:	113.8 KB
ID:	327800   Click image for larger version

Name:	DSCF1618.JPG
Views:	345
Size:	92.0 KB
ID:	327801   Click image for larger version

Name:	DSCF1632.JPG
Views:	313
Size:	90.2 KB
ID:	327802  

Last edited by dswitkin; 06-29-2012 at 09:07 AM..
dswitkin is offline        Reply With Quote
Old 06-28-2012, 06:36 PM   #3
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default Covering The Tail Case

I decided I wanted a colored tail case for better visibility, so I went with yellow peel and stick covering to match my new canopy and blades. Obviously this step took a lot of time which was not necessary.

I started by tracing out both carbon pieces on each side. THIS WAS A MISTAKE! It made it much harder to apply the covering without the lines showing. It would have been far easier to stick the covering on directly out of rectangles of about the right size.

I used a hobby knife to cut everything out, which required changing blades a couple times. They get dull very quick. In fact the new blades were so sharp they took some dust off the carbon, so I had to be careful to clean that up and wash my hands thoroughly. Remember that carbon fiber dust is very dangerous.

The result wasn't too bad. It certainly doesn't compare to paint but looks good from a distance. By the way, the bearings pressed in so tightly I didn't bother to epoxy them as the instructions recommend.
Attached Thumbnails
Click image for larger version

Name:	DSCF1605.JPG
Views:	242
Size:	106.8 KB
ID:	327805   Click image for larger version

Name:	DSCF1608.JPG
Views:	230
Size:	93.6 KB
ID:	327806   Click image for larger version

Name:	DSCF1609.JPG
Views:	225
Size:	94.4 KB
ID:	327807   Click image for larger version

Name:	DSCF1611.JPG
Views:	252
Size:	69.7 KB
ID:	327808   Click image for larger version

Name:	DSCF1614.JPG
Views:	240
Size:	104.6 KB
ID:	327809  

Click image for larger version

Name:	DSCF1617.JPG
Views:	231
Size:	97.0 KB
ID:	327810  
dswitkin is offline        Reply With Quote
Old 06-28-2012, 06:36 PM   #4
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default Cutting The Boom

Because I only intend to run 550mm blades, I chose to cut the boom down and reuse the Logo 500 stock belt. You could probably keep the boom as-is and try a 500SE or 600 belt but I can't vouch for that.

The L500 boom is 600mm, whereas the L600 boom is 760mm. I wanted to double check that chopping off 160mm was the right thing to do. Because the L500 tail case is pinned, there is a fixed distance between it and the center of the tail shaft, about 1/2". But the the L600 tail case can be slid back and forth, between 5/8" and 1 1/8" on the same measurement. So it turns out 160mm is about right, maybe a hair less.

I decided to cut off 6" exactly to start with (less than 160mm), figuring I could cut more if needed. I used a rotary tool with a cutting wheel, making small cuts and turning often. Don't tighten the vise too much, you'll crush the boom! The end required a lot of sanding and cleanup but ultimately came out OK.

UPDATE: A pipe cutter would have been easier and done a better job.

As it happens this length just barely worked, if the boom was pushed completely into the frame. I was just able to get the belt around the main pulley. I would suggest cutting 6 1/4" instead to have a little more flexibility - you can always slide the tail case away from the frame. Don't go much shorter though, you want the frame to have a solid hold on the boom to minimize vibrations.
Attached Thumbnails
Click image for larger version

Name:	DSCF1606.JPG
Views:	245
Size:	59.0 KB
ID:	327811   Click image for larger version

Name:	DSCF1627.JPG
Views:	272
Size:	89.2 KB
ID:	327812   Click image for larger version

Name:	DSCF1628.JPG
Views:	269
Size:	90.7 KB
ID:	327813   Click image for larger version

Name:	DSCF1629.JPG
Views:	281
Size:	92.2 KB
ID:	327814  

Last edited by dswitkin; 06-29-2012 at 09:04 AM..
dswitkin is offline        Reply With Quote
Old 06-28-2012, 06:37 PM   #5
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default Tail Case Assembly

Assembling the tail case was pretty straightforward. A few notes though:
  • The tail shaft does not protrude all the way through the bearing on the fin side. This seems to be because I used MIK2476 which is 71mm. MIK4074 is the hardened shaft but is also 75mm long and should fix this issue.
  • The tail pushrod is offset to one side, not in the center of the boom. I thought maybe the Logo 600 had a different control lever (MIK2447 vs. MIK2449) but they look the same, the former just comes with bearings.
  • I added the top roller pulley for good measure, but I don't know whether it's needed.
Unfortunately I had used JB Weld on both ends of my tail pushrod after epoxy had failed, which left me with no adjustability. As a result my tail blades are not at zero pitch when the tail servo is at 90 degrees. Still, I have a good range in either direction, and I'll fix this in the future if it becomes a problem.
Attached Thumbnails
Click image for larger version

Name:	DSCF1619.JPG
Views:	313
Size:	102.4 KB
ID:	327815   Click image for larger version

Name:	DSCF1623.JPG
Views:	413
Size:	92.8 KB
ID:	327816   Click image for larger version

Name:	DSCF1624.JPG
Views:	324
Size:	55.4 KB
ID:	327817   Click image for larger version

Name:	DSCF1631.JPG
Views:	349
Size:	57.6 KB
ID:	327818  

Last edited by dswitkin; 06-29-2012 at 09:06 AM..
dswitkin is offline        Reply With Quote
Old 06-28-2012, 07:00 PM   #6
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default Final Result

All in all it turned out pretty well. Of course I had to run VBar setup again to set the tail limits, which were pretty asymmetrical. I wonder if changing the pushrod would fix that. I also reset the tail in the advanced panel, turned on the optimizer, and lowered the gain 5 points because I increased the tailblades from 86mm to 92mm.

Hopefully I'll do the maiden flight this weekend. Mostly I'll keep an eye on vibrations and make sure they're reasonable. I'm a big sky sport flyer, not a 3D smacker, so I'm hoping it'll hold up well.

That's all for now!
Attached Thumbnails
Click image for larger version

Name:	DSCF1633.JPG
Views:	452
Size:	77.2 KB
ID:	327819   Click image for larger version

Name:	DSCF1641.JPG
Views:	379
Size:	108.2 KB
ID:	327820   Click image for larger version

Name:	DSCF1643.JPG
Views:	363
Size:	87.9 KB
ID:	327821   Click image for larger version

Name:	DSCF1644.JPG
Views:	402
Size:	116.9 KB
ID:	327822  

Last edited by dswitkin; 06-28-2012 at 11:30 PM..
dswitkin is offline        Reply With Quote
Old 06-28-2012, 08:46 PM   #7
n6nev
Registered Users
 
Posts: 1,915
 

Join Date: Jul 2009
Location: Torrance Calif
Default

I run the same set up and I cut the 600 boom to 690mm and use the stock belt, and the carbon tail / uk blade grips and I am very pleased
__________________
1 DJI 550 ,1 DJI600 Y 6, both with naza, fatshark, ET OSD "You can always tell a pilot,but not much"

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
n6nev is offline        Reply With Quote
Old 06-28-2012, 11:25 PM   #8
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default

Cool. I'm surprised you can leave the boom so long, mine is probably around 605mm after cutting it. Are you using the Logo 600 belt?
dswitkin is offline        Reply With Quote
Old 06-29-2012, 02:29 AM   #9
Bullfrog98
Registered Users
 
Posts: 802
 

Join Date: May 2010
Location: South Africa, Port Elizabeth
Default

The final results look really awesome dswitkin , it gives the 500 a nice clean look.

I have wanted to do a similar mod myself for some time, but spending $70 on the 600 carbon tail setup when I already have the standard 500 one is putting me off.

A good tip I got from a flying buddy (who is a plumber) is to use a plumber's pipe cutter to cut the tail booms down. It's an easy no mess no fuss solution and it gives you a nice clean edge that does not require any cleaning up.
Bullfrog98 is offline        Reply With Quote
Old 06-29-2012, 03:39 AM   #10
BakedMopar
Registered Users
 
Posts: 1,280
 

Join Date: Sep 2010
Location: Hilo,HI
Default

By using the 500 tail shaft will you have enough travel on the tail? Isn't the 600 one longer?

Cool conversion though
BakedMopar is offline        Reply With Quote
Old 06-29-2012, 08:47 AM   #11
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default

Thanks Bullfrog. I was putting this project off too since the old tail was in perfect shape. I kept waiting for a crash to at least justify it but it never came! In some ways I like the L500 plastic tail case better - it has fewer parts and only needs three screws, plus it's keyed to the boom so it can't twist.

That's such a great idea about the pipe cutter. I probably even have one around. It definitely would have been faster and done a cleaner job too. Thanks for the suggestion.
dswitkin is offline        Reply With Quote
Old 06-29-2012, 09:00 AM   #12
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default

Quote:
Originally Posted by BakedMopar View Post
By using the 500 tail shaft will you have enough travel on the tail? Isn't the 600 one longer?

Cool conversion though
I did a little research on Mikado tail shafts and you're right:

MIK2476: 71mm (2 per package)
MIK2475: 71mm hardened
MIK4074: 75mm hardened

That would explain why the shaft doesn't come through all the way in the fin-side bearing. I'm not sure if it's limiting my travel but it might be. I guess I'll fly it as is and see if I need to upgrade to the longer shaft.

Thanks,
Daniel
dswitkin is offline        Reply With Quote
Old 06-29-2012, 09:19 AM   #13
Bullfrog98
Registered Users
 
Posts: 802
 

Join Date: May 2010
Location: South Africa, Port Elizabeth
Default

Quote:
Originally Posted by dswitkin View Post
I kept waiting for a crash to at least justify it but it never came!
Lol I have the same "problem".
Bullfrog98 is offline        Reply With Quote
Old 06-29-2012, 09:51 AM   #14
celm
Registered Users
 
Posts: 1,798
 

Join Date: Jun 2010
Location: oviedo,Fl,USA
Default

I.turned my 600 3d into a 550 size logo. I cut the boom, boom.support and tail rod down.I used 500se belt. All the servos, motor, esc and vbar came off my trex550. So it runs on a 6s set up
__________________
Trex 700E DFC V-Bar , Trex 600N , Logo 600 SE FBL V-bar, Logo 600/550 FBL V-bar,Logo 400 FBL V-Bar ,Goblin 500 V-Bar, Blade 130X , Blade MCPx , Blade 500X
celm is offline        Reply With Quote
Old 06-29-2012, 10:57 AM   #15
dswitkin
Registered Users
 
Posts: 1,297
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2008
Location: Northern California
Default

Quote:
Originally Posted by celm View Post
I.turned my 600 3d into a 550 size logo. I cut the boom, boom.support and tail rod down.I used 500se belt. All the servos, motor, esc and vbar came off my trex550. So it runs on a 6s set up
Ah, so you kept the boom supports? Did you try any flights without them?
dswitkin is offline        Reply With Quote
Old 06-29-2012, 11:25 AM   #16
celm
Registered Users
 
Posts: 1,798
 

Join Date: Jun 2010
Location: oviedo,Fl,USA
Default

I did everything at once wile I was building it. So.I never did a flight without the supports, the supports to help keep the vibe down
__________________
Trex 700E DFC V-Bar , Trex 600N , Logo 600 SE FBL V-bar, Logo 600/550 FBL V-bar,Logo 400 FBL V-Bar ,Goblin 500 V-Bar, Blade 130X , Blade MCPx , Blade 500X
celm is offline        Reply With Quote
Old 06-29-2012, 11:27 AM   #17
n6nev
Registered Users
 
Posts: 1,915
 

Join Date: Jul 2009
Location: Torrance Calif
Default

Quote:
Originally Posted by dswitkin View Post
Cool. I'm surprised you can leave the boom so long, mine is probably around 605mm after cutting it. Are you using the Logo 600 belt?
I am using the 686 xl belt, this 500 se was already mod'ed when I bought it....
__________________
1 DJI 550 ,1 DJI600 Y 6, both with naza, fatshark, ET OSD "You can always tell a pilot,but not much"

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
n6nev is offline        Reply With Quote
Old 06-29-2012, 11:52 AM   #18
Big Fil
Registered Users
 
Posts: 5,655
 
My HF Map location
Join Date: Mar 2007
Location: Santa Rosa, CA
Default

Nice job and pictures. Welcome to the world of fat boom 500s. Been doing this for quite a while to my 500 as it was a great way to have parts commonality between the 600 and 600SEs.

Pipe cutter works well. Another thing that works well, if you have access to one, is a band saw. Makes quick work of the job.

I personally always kept the boom supports. Would not be comfortable without them plus I like how the helis look with the boom supports.

I would advise getting the longer tail shaft. It's only half supported on that one side through the bearing. Why take the chance?
__________________
Mikado Model Helicopters
Edge Blades

Big Fil is offline        Reply With Quote
Old 06-29-2012, 01:37 PM   #19
Santini
Registered Users
 
Posts: 1,691
 
My HF Map location
Join Date: May 2006
Location: Madison, NJ - USA
Default

It looks really nice, Daniel, looking forward to seeing it fly. Very nice build thread.
__________________
"The Great Santini"
Futaba 8FHGS; Logo 600 3D FBL:, 4035-500, 12T, 12S, Jive80+HV, Futaba 6203SB, Fullsize V-Bar 5.1pro (Vergnugenstabi), BLS 451+251; Align 500esp: TracX FBL, 14T, ICE75, Beastx v3
Santini is offline        Reply With Quote
Old 06-29-2012, 02:09 PM   #20
vadimr
Registered Users
 

Join Date: Sep 2006
Location: North New Jersey
Default

Good job man, now get some real blades too
__________________
T-rex 500, CC 75, HK-3026-1600, TracX Head & Full vBar
Logo 600 3D, CC 80HV, WR Super BEC, HK-4035-560, 10S & Full vBar
Compass 7HV, CC 120HV, WR Super BEC, HK-4035-560, 12S & Full vBar
vadimr is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Mikado Logo Helicopters


Mikado Logo Helicopters Mikado Logo Helicopters Discussion

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com