Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: 1 2 3 [4] 5 6   Go Down

Author Topic: GRANIT - 1/50th scale AHTS  (Read 25136 times)

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #75 on: August 19, 2017, 02:13:23 PM »

Ok, see if we can make some headway. There are 2 sets of output modes on the FlySky......PWM and PMM and another set for i-bus and s-bus. Can i presume that the P94 needs PWM?
Because i am beginning to tear whats left of my hair out. My only other alternative is to get another Tx/Rx set, but which one.....minimum 7ch and at the 200 mark.


I really need some help guys, thanks in advance..... <:( <:( <:(
Logged
"Give me a ping Vasili. One ping only, please"

hama

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 486
  • Location: Stockholm, Sweden
Re: GRANIT - 1/50th scale AHTS
« Reply #76 on: August 19, 2017, 02:53:56 PM »

Hello!
I'm not the one to sort this out, but to offer some comfort. If nothing else work, buy some ordinary esc and use the mixing on your tx. Then  you can also have the option of turning on/off and tune your mixing as you sail. The Action stuff would bring you some money if you sell them, many people use them. As I said, only if nothing else works.
Good luck!
Hama
Logged

Shipmate60

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,168
  • You bark - I will bite!!!
  • Location: Fareham
Re: GRANIT - 1/50th scale AHTS
« Reply #77 on: August 19, 2017, 06:52:36 PM »

I do know that the action mixer requires a very precise neutral set point.
I did some testing for DM with a Spektrum Dx5 as it wouldn't play at all.
Try just the mixer on a known set eg Futaba.
If the mixer operates correctly it would seem to be incompatible with the radio set.
You could always drive as tank steering which would remove the mixer but not incur any more cost with ecs's.


Bob

 
Logged
PFC, down but not out

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #78 on: August 19, 2017, 07:05:13 PM »

Hi Bob, thanks for the reply.
Tried with an old 2ch Futaba crystal set and works fine in 100% mix mode.
Tried FlySky in tank mode and is better, not correct though, soon as you add throttle motor bangs in, also if just using one stick opposite motor spins up for a second.
Think the problem is the FlySky unit, the throttle channel zero position is full down, in the middle it is 50%, hence why motors bang straight in. Tried all sorts to get it into a neutral position but no joy, nothing on you tube either.....this is one purely for the fly boys methinks........oh well better spend some more money.......the Planet T7 looks good value......any reason not to get one?


Regards


Stewart
Logged
"Give me a ping Vasili. One ping only, please"

Bob K

  • Bob K
  • Full Mayhemer
  • *****
  • Online Online
  • Posts: 3,572
  • Location: Windsor
Re: GRANIT - 1/50th scale AHTS
« Reply #79 on: August 19, 2017, 08:51:48 PM »

the Planet T7 looks good value......any reason not to get one?
Regards
Stewart

I have never had problems with Action mixers on either Planet or Futaba F14.
Planets could be hard to get now as they no longer make them
Logged
HMS Skirmisher (1905), HMS Amazon (1906), HMS K9 (1915), Type 212A (2002), HMS Polyphemus (1881), Descartes (1897), Iggle Piggle boat (CBBC), HMS Royal Marine (1943), HMS Agincourt (1912)

Mark T

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 697
  • Location: Dudley in the Black Country
Re: GRANIT - 1/50th scale AHTS
« Reply #80 on: August 19, 2017, 09:45:10 PM »

Hi Bob, thanks for the reply.
Tried with an old 2ch Futaba crystal set and works fine in 100% mix mode.
Tried FlySky in tank mode and is better, not correct though, soon as you add throttle motor bangs in, also if just using one stick opposite motor spins up for a second.
Think the problem is the FlySky unit, the throttle channel zero position is full down, in the middle it is 50%, hence why motors bang straight in. Tried all sorts to get it into a neutral position but no joy, nothing on you tube either.....this is one purely for the fly boys methinks........oh well better spend some more money.......the Planet T7 looks good value......any reason not to get one?


Regards



Stewart


Now that rings a bell with me!!!  My spektrum was exactly the same it was set up for aircraft with the throttle fully down.  To correct this I spent ages in the settings and eventually worked out how to set the throttle neutral in the middle position with 50% forward and 50% aft with up and down movements  Its a bit late now but tomorrow I'll have a look which settings I altered  and let you know - maybe it will help
Logged
Its not the finishing that matters - Its the journey along the way that counts

Fairmount Alpine Build http://modelboatmayhemimages.co.uk/album/bXv
Anteo Tug Build http://www.modelboatmayhem.co.uk/forum/index.php/topic,59708.0.html

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #81 on: August 19, 2017, 09:50:31 PM »

Appreciate that Mark.......... :-))
Logged
"Give me a ping Vasili. One ping only, please"

Mark T

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 697
  • Location: Dudley in the Black Country
Re: GRANIT - 1/50th scale AHTS
« Reply #82 on: August 19, 2017, 10:02:03 PM »

Ok its not that late and I've had a look  %%


On my transmitter the neutral point and the percentage throw each way of the stick is set in the menu of "Analogue switch set up"


Now it takes some playing around with as you are basically changing percentage movements.  I can't remember exactly how I did it but I think that I moved the stick to the centre and set that at zero.


I then moved the stick fully forward and set that to +100% and then set the reverse to -100%.  So when the stick was in the middle the display always says zero, it took a little while but I got there in the end.  I really hope that this helps?
Logged
Its not the finishing that matters - Its the journey along the way that counts

Fairmount Alpine Build http://modelboatmayhemimages.co.uk/album/bXv
Anteo Tug Build http://www.modelboatmayhem.co.uk/forum/index.php/topic,59708.0.html

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #83 on: August 20, 2017, 10:23:14 AM »

Thanks for that Mark, but still a no go.
Shame this doesn't have the facility in the menu for neutral point adjustment............goes to show manafacturers are leaving model boaters out of it......shame because the FlySky does look and feel good.


Onwards and upwards, waiting to hear from SHG models if they have a Planet T7 on stock, fingers crossed.


Stewart
Logged
"Give me a ping Vasili. One ping only, please"

JimG

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 474
  • Model Boat Mayhem is Great!
  • Location: Dundee
    • Dundee Model boat Club
Re: GRANIT - 1/50th scale AHTS
« Reply #84 on: August 20, 2017, 07:50:55 PM »

i wouldn't bother about where the transmitter thinks the zero point is as the receiver doesn't know anything about it.All the receiver is looking at is a pulse length between 1000 micro seconds and 2000 micro seconds, it takes a length of 1500 microseconds as the center point. It doesn't matter if the Tx calls that 0 or 50 to the Rx it is center. The Tx may code the pulse lengths  in different ways but  the receiver will decode this into a set of pulses and send the correct pulse to each servo or esc. What the esc does when it receives the pulse can vary, they may look for different pilse lengths as off depending on whether they are forward only or both forward and reverse. You may need to set the neutral point and full power on the esc to get correct control.
Jim
Logged
Dundee Model Boat club
http://www.modelboating.co.uk

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #85 on: August 20, 2017, 09:07:01 PM »

Jim, I understand what you are saying, but the P94 has no way of adjusting that.
What is the P94 looking for? PWM, PMM, I-BUS, S-BUS.........Lord knows, hence the problem of newer Tx not being compatible.
I really want this set up to work, i have spent too much to give in now and go with 2 seperate ESC's and try and mix it via the Tx, that's why i went with the P94 in the first place. A recommended list of Tx sets should be put up to avoid further issues that cost time and money.


Stewart
Logged
"Give me a ping Vasili. One ping only, please"

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #86 on: September 08, 2017, 05:44:44 PM »

Well, I have now got the electronics working as they should.
Sent both P94's off to DM to check over and was duly returned giving them the all clear (thanks David for quality service).
Wired unit back in place and switched on but still playing silly buggers, so it had to be the Tx..... So bit the bullet and bought a new Hitec optic 6 sport, plugged it in and bingo, we are in business, just need to take the ratchet off the throttle gimbal and away we go.
I can now start to make some headway on the build now as I didn't want to fix any detail work onto the hull until I had finished the electronics.
Once again thanks to you all for your help and guidance.


Stewart
Logged
"Give me a ping Vasili. One ping only, please"

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #87 on: September 09, 2017, 07:28:44 PM »

Time for some pictures of progress so far, slow but sure!

Logged
"Give me a ping Vasili. One ping only, please"

missyd

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 864
  • Model Boat Mayhem is Great!
  • Location: Switzerland
Re: GRANIT - 1/50th scale AHTS
« Reply #88 on: September 10, 2017, 04:43:34 AM »

Very nice build!!! Just love the perfect wiring and arrangement of the electric components.  :-))
Logged
Cheers
Danielle

All lost pictures of the N. Loredana ---> visit the following link:
https://nuovaloredana.imgur.com/all/
All pictures can be found on Facebook
https://www.facebook.com/fvcorneliamarie
https://www.facebook.com/MpNuovaLoredana/

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #89 on: September 19, 2017, 12:38:54 PM »

Making a bit more headway on the build.
Deck frame built and skin going on ready for laying planks on.
Wheelhouse under construction, I have no idea if this is going to work out or not as there is a heavy mast structure got to go on top so just winging it as I go!
Next job is laying planks on deck skin.



Logged
"Give me a ping Vasili. One ping only, please"

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #90 on: September 21, 2017, 06:48:57 PM »

Can someone explain what colour these lights should be, what are the light sequences and why are one smaller than the other?
Many thanks in advance.
Stewart



Logged
"Give me a ping Vasili. One ping only, please"

kieven

  • Shipmate
  • *
  • Offline Offline
  • Posts: 3
  • Model Boat Mayhem is Great!
  • Location: Hamilton, Ontario, Canada
Re: GRANIT - 1/50th scale AHTS
« Reply #91 on: September 23, 2017, 03:36:07 AM »

https://www.rcgroups.com/forums/showthread.php?787277
Post #8 by CG Bob has some nice illustrations of the different light configurations depending on the tow.

https://www.rcgroups.com/forums/showthread.php?2914656-Granit#post37823023
My Granit build. Still cutting steel but ran into my first problem.
My two prop shafts are not on the same angle exiting the frames. I'm not sure which one is right is either.........
This would be the third tug made from steel.

Mark
Logged

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #92 on: September 23, 2017, 03:51:56 PM »

Thanks for that Mark.


Going to watch your steel build with great interest.


Stewart
Logged
"Give me a ping Vasili. One ping only, please"

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #93 on: September 24, 2017, 10:44:00 PM »

Ok, all of the woodwork done, now to sand it smooth, stain with some teabags, seal it then paint the edges.
I may have made an error in not having the normal ledge to seal the deck to the hull. So in my deck is a rebate, this has a neoprene cord fitted into it, this will seal against the opening with a smear of vaseline to aid the seal. The deck sits on 8 blocks with a strong magnet glued into them, the deck will have 8 steel tabs glued in place to the corresponding magnet. To remove the deck just lift the towing guide that will be fitted in the centre of the deck.
More pics to follow.



Logged
"Give me a ping Vasili. One ping only, please"

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #94 on: September 28, 2017, 06:32:10 PM »

Stained, sealed and painted, metal tabs in place and fits a treat. If its waterproof is another matter!
Now fit bollards and deck rails then make tow guide.



Logged
"Give me a ping Vasili. One ping only, please"

Umi_Ryuzuki

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,066
  • Location: PDX, OR USA
    • Models and Miniatures
Re: GRANIT - 1/50th scale AHTS
« Reply #95 on: October 02, 2017, 08:15:45 AM »

The deck looks fantastic!

 :-))

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #96 on: December 05, 2017, 09:14:18 PM »

A small update on Granit.
I tried and tried to make these deck rails but they always ended up in the bin, so turned to Shapeways and AutoCad and had these printed up, don't look bad, better than my attempts.











Stewart
Logged
"Give me a ping Vasili. One ping only, please"

kieven

  • Shipmate
  • *
  • Offline Offline
  • Posts: 3
  • Model Boat Mayhem is Great!
  • Location: Hamilton, Ontario, Canada
Re: GRANIT - 1/50th scale AHTS
« Reply #97 on: December 06, 2017, 02:59:25 AM »

I have been thinking about the rails since I started and had no idea how I was going to make them. Your rails look great.
Good idea.
Mark
Logged

bfgstew

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 493
  • Comfortably Numb
  • Location: Retford (Robin Hood Country)
Re: GRANIT - 1/50th scale AHTS
« Reply #98 on: December 13, 2017, 09:24:17 PM »

Started on the cable guide as my brass supply has arrived, turned out better than I expected.


How are these attached to the deck?



Logged
"Give me a ping Vasili. One ping only, please"

kieven

  • Shipmate
  • *
  • Offline Offline
  • Posts: 3
  • Model Boat Mayhem is Great!
  • Location: Hamilton, Ontario, Canada
Re: GRANIT - 1/50th scale AHTS
« Reply #99 on: December 14, 2017, 03:02:29 AM »

I soldered a washer on the bottom of the tubes and dropped a screw down the tube. I stuff a piece of black rubber in the top of the tube to seal it.
Here's a link to the Gogor build https://www.rcgroups.com/forums/showpost.php?p=29896423&postcount=63
See the third picture on post 63
Another option would be to glue or solder a nut in the bottom of the tube so you could feed the screw from under the deck
Logged
Pages: 1 2 3 [4] 5 6   Go Up