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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
4 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 171 Views ยท 1 Like
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I bought them on ebay. About ยฃ6 each I think.
As for the paint, I have used Halfords Red Oxide for below the waterline. I have used Tamiya spray cans for the rest. I am spraying the main cabin and hull with a deeper red than pictured. As the hull is ABS, I did not see any need for fibre glassing. ▲
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Martin555
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Remove Ads ๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
4 years ago by ๐บ๐ธ bruce1946 ( Midshipman)
โง 170 Views ยท 2 Likes
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Where did you get your micro motors from for the monitors and batteries
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MouldBuilder
Martin555
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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
4 years ago by ๐บ๐ธ bruce1946 ( Midshipman)
โง 170 Views ยท 2 Likes
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I just ordered my Dusseldorf from Cornwell models. they were the only one to have the kit anymore Krick factory in china is shut down. Per Krick.
What is the color red and brand you are using or suggested paint to paint this boat, is it flat red or gloss? I love you detail and instructions, photo's did you use epoxy and fiber glass on the hull? Hopefully I will have my boat next week. I still need the monitor kit. Thank you ▲
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MouldBuilder
Martin555
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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 170 Views ยท 1 Like
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Hi Pete,
If you're happy ...! I was just a bit concerned as you mentioned 'deck level' but the pics showed some bulwark mouldings! You know best, you have the 'bits' in front of you. ๐ Cheers, Doug ▲
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Martin555
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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
5 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 170 Views ยท 3 Likes
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Hi Doug.
There was a formed line on the hull which was the guide for this material removal. I am happy that not too much was cut away. I am finding that the plan is not quite 1:1. This is not too much of an issue but I have come across a dimension that is given as 35mm in the instructions but measures 30mm on the plan. The plan scale is generally around 0.976:1. ▲
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ASTRAGALO
Martin555
RNinMunich
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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 170 Views ยท 2 Likes
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Way to go Pete๐ Welcome home!
Should be fun getting all the special function possibilities working ๐ I look forward to the 'How Tos?' ๐ Doug ๐ BTW Are you SURE you should have trimmed so much off the hull? I hope you haven't cut off any moulded in bulwarks!! ๐ฎ Don't chuck the bits away just in case! ▲
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Martin555
MouldBuilder
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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
5 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 170 Views ยท 1 Like
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Hi,
I am looking forward to seeing your progress with this project. It looks very interesting. Good luck with the build. Martin. ▲
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MouldBuilder
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๐ฌ Re: RoMarin/Krick Dusseldorf Fire Boat.
5 years ago by ๐บ๐ธ Cashrc ( Vice Admiral)
โง 170 Views ยท 2 Likes
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Iโm so glad Krick acquired the old Robbe line. I finished the Neptun tug a month or so ago, and imho Krick has done a fine job resurrecting the Robbe kits. Looks like your well on your way to building a nice model.๐
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RNinMunich
MouldBuilder
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๐ฌ Re: Fitting the Rudders
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 2 Likes
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How did I manage to miss this!๐
Great stuff Pete, your skills are going up exponentially๐ When I think back to our first discussions ... Hat off ๐ I use Grandads ancient wood gauge for jobs like that hull marking. I have that job before me with my Deans Marine Manxman hull ๐ฎ KUTGW ๐ Doug ๐ ▲
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MouldBuilder
Martin555
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 1 Like
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All's well .... ๐
After I bought my Dual Quicrun I found the Action Electronics Dual ESC with rudder mixer AND output for a 3rd (centre) motor ๐ Natch more expensive but ideal for MTBs / PTBs! Have fun Pete, Cheers, Doug๐ ▲
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MouldBuilder
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Remove Ads ๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 174 Views ยท 1 Like
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Thanks Doug. The Pilot Boat has one which, incidentally, is wired backwards on one motor. I remember switching the wires.๐
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RNinMunich
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 2 Likes
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Hi Pete,
Soooo, I have sucked ๐ and seen! Tested my dual ESC on the motors of my Graf Spee. Yellow is positive when going ahead, as suspected. Cheers Doug ๐ BTW: don't forget to set the teeny weeny switches 1 and 2 to the right for Boat mode; forward / reverse with no brake!!! Switch 3 also to the right for NiMh battery, left for LiPo. Alles klar Herr Kommissar? ๐ ▲
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MouldBuilder
Martin555
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 1 Like
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Don't know yet Peter. I suspect the yellow.
I'll suck it and see ๐ Oh goody! A box of electronic goodies just arrived๐ ▲
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Martin555
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 174 Views ยท 1 Like
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Thanks for the explanation Doug. I will reverse one. Do you know which, yellow or blue, is positive on the ESC.๐
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Martin555
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 2 Likes
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Hi Pete,
"I have wired them the same polarity because I use a dual ESC so I can just swap the wires over for one of the motors." Hmmm! OK, but it is bad practice to mix up the colours; i.e. you would end up with the plus volts on a black wire and ground on the red!๐ฎ The load (i.e. motor) should always be wired to indicate the required supply polarity. Makes troubleshooting much easier and helps to prevent accidents or magic smoke.๐ฅ๐ค Super Glue is just the 'street name' for Cyanoacrylate glues. Must have missed Mike's comment ๐ค Don't know what Loctite is made of but it smells quite different๐ Cheers, Doug BTW: I have one of those Dual ESCs as well๐ It's destined for fitting to my destroyer or maybe the Southampton tug. I also have an Action Electronics dual ESC which has a built in rudder mixer. This might help the destroyer steering more than the Hobby Wing cos it only needs one stick for control of both motors and rudder with motor assisted steering! ▲
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Martin555
MouldBuilder
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 174 Views ยท 2 Likes
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I forgot to mention the motor wiring. I have wired them the same polarity because I use a dual ESC so I can just swap the wires over for one of the motors. ๐
By the way. Is there a difference between Cyanoacrylate, super glue and Loctite? I saw a confusing comment in Mikes build blog.๐ ▲
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ASTRAGALO
RNinMunich
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 1 Like
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I agree Peter,
I get a lot of stuff from Krick as well. Prices are acceptable and delivery prompt. I have a few of those pumps (also used in car windscreen washers). Found that they do tend to clog in murky waters but otherwise no problem. Funny, I'd forgotten the 'acrylate' part of Cyanoacrylate!! Got too used to calling it CA or Gluper Sue ๐ Cheers, Doug ๐ ▲
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MouldBuilder
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 174 Views ยท 3 Likes
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Thanks to you both.
The pumps are Krick. I have found this company to supply quality items. Time will tell if this goes for their pumps as well. I will show you my nails Doug. Soon. In the mean time, this glue is recommended by Krick for the water tight areas. I used it on the Pilot Boat and it has performed well so far. Well, the boat has not sunk yet.๐ค ▲
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ASTRAGALO
Martin555
RNinMunich
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 174 Views ยท 1 Like
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You are doing a great job, coming along nicely.
However the pump that you are using could cause you problems as I have used this type of pump a couple of times and found it is not very reliable and has packed up. Maybe I was just unlucky and had two from the same batch! Martin. ▲
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MouldBuilder
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๐ฌ Re: Fitting shafts and motors
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
โง 174 Views ยท 2 Likes
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More good stuff Peter, coming on very well๐
Odd with the motors! What capacitors were fitted then? "I prefer solid drive connectors where possible as I believe this should reduce vibration which is often introduced through universal joints." Hmm! Whereas I agree that universals can introduce rattling and vibration, especially the 3 part kardan couplings, or the all metal UJs. This is mostly due to bad alignment of the shafts in the first place. Otherwise a UJ or a kardan would not be necessary. BUT; using a rigid solid coupling demands that your shaft alignment is absolutely perfect. Otherwise due to it's rigidity any slight misalignment will cause excessive friction and wear on the shaft bearing and motor output bearing, which will ultimately lead to vibration anyway. Not to mention wasting power to overcome the friction. I don't like universals either. Which is why I make rigid couplings as alignment tools only and then fit a semi-rigid spiral coupling (as shown in my Sea Scout postings) for operation. This absorbs any residual misalignment as well as providing some axial flexibility to absorb the thrust reaction from the prop. And they are totally silent and vibration free๐ I buy mine from Krick incidentally. Acrylate glue? Never heard of it, so I looked it up๐ค Hadn't realised you are into finger nail cosmetics Pete ๐ฎ "WHAT ARE ACRYLATES? FOUND IN: Artificial Nail Products (Acrylic Nails, Nail Enhancing Polishes). Acrylates are derived from acrylic acid and are commonly found in cosmetic nail preparations. Ethyl acrylate acts as an adhesive to apply artificial nails and eyelashes. Ethyl methacrylate and methyl methacrylate allow sculptured artificial nails to mold and adhere to the natural nail plate. " ๐๐๐คฃ Yo MUST post some pics of your 'scultured nails' Pete ๐๐คฃ I like the ghostly translucent superstructure ๐ Gives lots of scope for some interesting LED light effects. I note that you have wired both motors the same way (polarity). Your choice, but assuming that they run clockwise, (seen from the output shaft end) then the combined side-thrust from the two props on the downward / bottom stroke (๐ฎ) will produce a strong torque reaction causing a list to starboard and will try to push the bow to port / stern to starboard. The latter you will have to constantly correct with the rudder. Had exactly that effect with the first runs of my destroyer, until a Retd. Cap'n RN told me to reverse the port motor! On the other hand, you can always use this effect to do some snazzy parking! Approach the 'dock' on the stbd. side at a slight bow on angle, give the throttle a quick blip and the side thrust should park the stern neatly on the dockside! ๐ Practise makes perfect! Looking forward to the next instalment, cheers, Doug ๐ ▲
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MouldBuilder
Martin555
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๐ฌ Re: Completing the Hull ready for the Deck.
4 years ago by ๐บ๐ธ figtree7nts ( Admiral)
โง 186 Views ยท 2 Likes
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Hi Pete,
Your Dusseldorf is coming along nicely! Cheers, Ed ▲
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MouldBuilder
Martin555
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๐ฌ Re: Completing the Hull ready for the Deck.
4 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 186 Views ยท 1 Like
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Well Peter you have been a busy boy.
Submarine and boat. You must have a big workshop to work in. You are definitely making good progress on both projects. Keep up the good work. Martin555. ▲
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MouldBuilder
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๐ฌ Re: Starting on the decking.
4 years ago by ๐บ๐ธ Cashrc ( Vice Admiral)
โง 206 Views ยท 3 Likes
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Sheโs looking good, really want to see this one in the water.
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Martin555
MouldBuilder
petercbrown
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๐ฌ Re: Starting on the decking.
4 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 206 Views ยท 2 Likes
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Nice work, keep it up.
Martin555. ▲
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petercbrown
MouldBuilder
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๐ฌ Re: Building the monitors
4 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 211 Views ยท 2 Likes
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Thanks Cash. I will be very careful.๐
Interesting about the pumps being cheaper on ebay. Another one to watch. Good luck with the build Chumbucket. Do you plan, like me, to get all of the functions working? Peter.๐ ▲
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ASTRAGALO
Martin555
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Remove Ads ๐ฌ Re: Building the monitors
4 years ago by ๐บ๐ธ Cashrc ( Vice Admiral)
โง 211 Views ยท 3 Likes
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Also, if youโre going to make your monitors move vertically, be very careful with the return spring. Itโs very light, and when I was testing the movement in the Dolly I let the servo move too much. The resultant slack in the monofilament actuating thread got caught in the spring and I didnโt catch it, so the next time I lowered the nozzle it got caught in the spring and damaged it. Just a heads up.
Cash ▲
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RNinMunich
MouldBuilder
Martin555
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๐ฌ Re: Building the monitors
4 years ago by ๐บ๐ธ Cashrc ( Vice Admiral)
โง 211 Views ยท 3 Likes
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Hi Peter. That pump is the standard one Krick sells, I have one in my Neptune and in my Dolly. The one in the Dolly gave me some trouble, but Iโm pretty sure I ran it too long dry on the bench. I think I have it fixed now, however, weโll see later. Anyway, that pump is also used for windshield washers that have an external pump, like a retro fit for classic cars. Both Amazon and the aftermarket parts houses have it for considerably less than Krick sells it for. Part number SI-A0050.
Cash ▲
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bruce1946
MouldBuilder
Martin555
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๐ฌ Re: Building the monitors
4 years ago by ๐บ๐ธ chumbucket ( Master Seaman)
โง 212 Views ยท 2 Likes
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Im interested in this build,just picked one up at Harbor Models last week,should be here soon.I belong to the PMPBA Boat club here in Portland Oregon
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MouldBuilder
Martin555
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๐ฌ Re: Building the monitors
4 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 211 Views ยท 1 Like
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Nice work, I am looking forward to seeing them in operation.
Martin555. ▲
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MouldBuilder
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๐ฌ Re: Building the monitors
4 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 212 Views ยท 3 Likes
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๐ฌ Re: Building the monitors
4 years ago by ๐ฌ๐ง mturpin013 ( Admiral)
โง 211 Views ยท 4 Likes
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To get the silicon tube through, tie very tightly a piece of strong cotton thread around the end of the silicon tube, then thread the cotton through the brass tube, pull on the tread at the same time holding the other end which will stretch the silicon tube reducing its diameter, then keeping stretched feed through the brass tube๐
PS can we see the pump please and its spec. ▲
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RNinMunich
marky
Martin555
MouldBuilder
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๐ฌ Re: Fitting the Deck.
4 years ago by ๐ญ๐บ MouldBuilder ( Vice Admiral)
โง 218 Views ยท 2 Likes
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Hi John.
I hope your Dusseldorf has arrived. Do you intend to activate all of the functions. I am currently improving the monitors. I have finished all of the painting of them now but having a nightmare trying to install the silicone tubes. Good luck with the build and if you come up against a problem just ask as I might have hit the same.๐ Peter. ▲
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ASTRAGALO
Martin555
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๐ฌ Re: Fitting the Deck.
4 years ago by ๐บ๐ธ Jgels ( Recruit)
โง 219 Views ยท 2 Likes
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Hello my name is John from Ohio USA. I'm patiently waiting for my Dusseldorf to arrive, its about 2 weeks late as of today.
I have been watching your build and it is looking great ! Its a shame you had to go through all that extra work on the deck. Keep up the good work. ▲
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Martin555
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๐ฌ Re: Monitors nearly there.
4 years ago by ๐ช๐ธ bombero ( Warrant Officer)
โง 220 Views ยท 2 Likes
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Make sure the monitors are realy loose on their vertical movements, I have had to dismantle them and adjust them as they would not work and found they have to drop easily without any support!๐
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Ianh
Martin555
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Remove Ads ๐ฌ Re: Monitors nearly there.
4 years ago by ๐ช๐ธ bombero ( Warrant Officer)
โง 220 Views ยท 2 Likes
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Hi ALL,
I am also starting to build one of these boats during the lockdown (I am English and live in Spain)and am very interested in your helpful information. I previously built a Billing "joffre"tug Len๐ค๐ ▲
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MouldBuilder
Martin555
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๐ฌ Re: Monitors nearly there.
4 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 220 Views ยท 1 Like
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Those monitors really look good.
Well worth all the extra effort you went through. A job well done. Martin555. ▲
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MouldBuilder
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๐ฌ Re: Special Functions
4 years ago by ๐ฌ๐ง Martin555 ( Fleet Admiral)
โง 229 Views ยท 2 Likes
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No Yogurt pots!!! That will never do. LOL!!
Rubber bands do tend to bunch up and then give and that will also cause the juddering. It looks like you will have servos coming out of your ears LOL! Nice work, Martin555. ▲
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jbkiwi
MouldBuilder
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