discussion boatman's 1/72 HMS Tiger C20 build

[boatman]

Hi Chris, just looking back a few pages and just pure awesome , a lot of work you put into the bridge, having the same troubl with window corner angles, I had to guess no plan go go by , can't wait to see the main gun turret in place. Tony

Hi Chris awesome pic of your large radar , a lot of hard work paid off, was it a plastic or white metal, don't like those kits, keep the awesome work up will pay off. Be an awesome site when in the water .Tony

AN HI Tony yea im lookin forward to tryin to make up the guns turrets an try an get them to travis an guns elevate ive got several ideas in my mind at the moment but nothing concrete as im hopein to have it so that when the turrets travis right or left an guns elevated there will be fitted in the guns barrels yellow ultrabright flashing leds to simulate the guns firein an maybe depending on cost a gun fire sound unit as at the moment i think they are about 40 pounds so will have to save up my pennyies for that an the large radar is a P/E KIT an with a bit of thought an planning ahead it went togeather without any real problems it was just patience on patience an build it slowly an it turned out ok pic of the kit against my hand an yes its was a fair size

 

[GerryW]

As a thought, the turrets and firing when traversed and elevated, could that be done by having a track for the 'breech' with contact points for the leccy at the ends of it? Got an image in my mind of it, but trying to explain - something like this (back of envelope sketch)

 

[boatman]

As a thought, the turrets and firing when traversed and elevated, could that be done by having a track for the 'breech' with contact points for the leccy at the ends of it? Got an image in my mind of it, but trying to explain - something like this (back of envelope sketch)

HI Gerry well thanks for your idea on this gun turret an i'll be quite honest i dont really understand your diagram but will keep the thought in mind if you could exsplain it a bit better say from side veiw with the gun turret drawin in so ive got some reference point to work from an front veiw an top veiw then perhaps i might be able to understand your idea cheers an thank you for puttin your thoughts to this problem :thumb2: but i have the layout drawing on how to work a gun turret from model boats book to give me some idea but will see if i can understand your idea first if possible as really now i'll be goin into mini engineering an i think its goin to be a bit complex but will see as ive first got to finish off this hulls
CHEERS Jerry ATB to you an thanks for havin a look in on the build
chris

chris

 

[GerryW]

I'll try and do the three elevations, but imagine a 'sad' smiley mouth on a post, tang/breech into the mouth, and connections at the ends of the mouth.
Other way would be to cut a cam onto a center post and use something like a cars points system, so that the points close at the end of the traverse

 

[GerryW]

Just giving it a bit more thought - how are you planning on turning the turrets - by a central post or by a ring round the edge?

 

[boatman]

I'll try and do the three elevations, but imagine a 'sad' smiley mouth on a post, tang/breech into the mouth, and connections at the ends of the mouth.
Other way would be to cut a cam onto a center post and use something like a cars points system, so that the points close at the end of the traverse

HI again Jerry well if you do your vershion i promise i'll look at them but below is a diogram of a twin gun layout that does work an maybe the vershion i'll go with
BUT THIS IS NOT MY OWN IDEA AN PIC IS FOR DISCUSSION PURPOSES ONLY

 

[boatman]

Just giving it a bit more thought - how are you planning on turning the turrets - by a central post or by a ring round the edge?

HI AGAIN Jerry well i may go with the above idea as it does work but your ideas may have some merit as you may think up something i hav'nt thought of an cheers for your intrest an help an in the above diogram they work by a outer gearing like the real thing an i will use spring loaded knock on switches for the eletrics but these units will take a fair amount of time to work out an get goin an to get the bits i need to do this as i want to have the big 6 inch turret goin an the smaller 3inch turret working an at the moment im still tryin when warm wheather again to respray the hulls in their top coluors but im pleased that you are takin an intrest in these guns turret as they will be fairly complex when i do start but its gonna take a lot of experiementing to see which will work for me but please continue with your ideas cheers :thumb2:

ATB Chris

 

[GerryW]

More involved than I originally thought :thinking:
But the principal remains the same, you need power to the lights only at the end of travel, so a contact on the gun and one at each end of the travel, and the negative wire could be fed out through the middle of the 'elevating push rod' - no need for switches, as the contacts would actually be the switch.

 

[boatman]

More involved than I originally thought :thinking:
But the principal remains the same, you need power to the lights only at the end of travel, so a contact on the gun and one at each end of the travel, and the negative wire could be fed out through the middle of the 'elevating push rod' - no need for switches, as the contacts would actually be the switch.

WELL Jerry ive got all the mini spring loaded knock on switches so i may as well use them an they are very easy to instal in the gun turret but my main headacke will be gettin all the gears an servos to work all this as i said its quite a complex arrangement but will see an put a lot more thought into it when im at that stage an with your help if you feel like to help an regards the yellow ultrabright flashing LED'S im fitting in the gun barrels to simulate gunfire they will have their wirein comin down the gun barrels an goin down the centre of the turret an bein flexible wire they will twist too like the turret as it will not go all the way around as it will hits some stops an cheers again for your thoughts Jerry very kind of you
ATB TO YOU
chris

 

[GerryW]

As you've already got the switches, pointless not to use them (makes life easier as well!)

 

[Tim Marlow]

This looks like an interesting problem Chris. Am I misreading this, or are you trying to get the guns to “fire” using the same mechanism as the gun elevation mechanism? If so, why? If you use a separate circuit for firing, the problem becomes how to rotate the turret and elevate the guns.....
Rotating the turret is the same as operating a locomotive turntable on a model railway....so look up some ideas on that and steal them.....should be fairly easy to do using gearing and micro switches.
The elevation mechanism could be achieved using similar ideas....micro motors to drive them, and micro switches as limiters. Look for motor driven (as opposed to electromagnet driven) point motorisation ideas to see what I mean....
I’ll have a look around and post anything if I think it’s useable.....

 

[boatman]

As you've already got the switches, pointless not to use them (makes life easier as well!)

YES Jerry thats what i thought an will
chris

 

[Tim Marlow]

How about something like this to drive the elevation mechanism?
https://www.gaugemasterretail.com/magento/rightlines-article/DCC_Concepts_Cobalt_Point_Motor.html

 

[boatman]

This looks like an interesting problem Chris. Am I misreading this, or are you trying to get the guns to “fire” using the same mechanism as the gun elevation mechanism? If so, why? If you use a separate circuit for firing, the problem becomes how to rotate the turret and elevate the guns.....
Rotating the turret is the same as operating a locomotive turntable on a model railway....so look up some ideas on that and steal them.....should be fairly easy to do using gearing and micro switches.
The elevation mechanism could be achieved using similar ideas....micro motors to drive them, and micro switches as limiters. Look for motor driven (as opposed to electromagnet driven) point motorisation ideas to see what I mean....
I’ll have a look around and post anything if I think it’s useable.....

HI Tim yes im afraid you are misreading this as im not tryin to get the guns to fire like in real all im tryin to do is make up an reprensent the guns firing by the yellow LEDS lights to look like guns firein flashes an yes ive got to do all what you are sayin about motorisation ideas but i will work all this out when i come to it thanks for your post on this but will go deeper into it when im ready cheers im now off up to man cave to fit in the ankor hawser on tiger x2
ATB Chris

 

[boatman]

How about something like this to drive the elevation mechanism?
https://www.gaugemasterretail.com/magento/rightlines-article/DCC_Concepts_Cobalt_Point_Motor.html

THANKS Tim i'll have look later as i want to get up with tiger as only 3hrs time an its tiffen time lol
cheers for you help
chris

 

[scottie3158]

Hi Chris,
Good luck with the turret mate, for a man of your skills it will be a walk in the park.

 

[boatman]

Hi Chris,
Good luck with the turret mate, for a man of your skills it will be a walk in the park.

HI Scotties i wish i had your confidence in me that you have lol as this will be far from a walk in the park as this is goin to be mini engineering an ive got some ideas but it will be far from a walk in the park esp - on the small 3inch turret as when i do do it i will do the small one first an if i can do the small one then the big turret should be a lot easyier but firstly ive got to get all the servos an gears that are needed as ive already got a servo moph to work the turrets on a range curve more than a normal servo so ive got a start but it will be intresting to see how it all turns out anyway back to the tiger man cave as my filler should be hard by now
cheers for lookin in
ATB Chris

 

[wotan]

Chris

I know you will sort it. But I had a similar problem animating my owl puppet. I wanted the head to turn and the eye lids to move up and down. I solved it basically like this.



All the best on your terrific build.

John

 

[Guest]

No doubt you will find a way Chris, now if you had wanted help with any ideas for pyrotechnics !:smiling3::nerd:

 

[boatman]

Chris

I know you will sort it. But I had a similar problem animating my owl puppet. I wanted the head to turn and the eye lids to move up and down. I solved it basically like this.



All the best on your terrific build.

John

HI John well i got to say thats the most simple design i have ever seen an i never even thought of yet an as i said i really hav'nt thought about the gun turret yet but your idea is great an has merit an nice an simple an less to go wrong cheers an thank you for your idea
:thumb2:
chris
ATB ch