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  • GRP & Epoxy
    April 26 2014 01 17 26 PM by martno1fan Useful website tr7v8 0 477 April 26 2014 10 59 17 AM by tr7v8 Can I colour polyester resin barriew 12 1 225 April 23 2014 10 26 23 PM by chris gillespie Z POXY PT40 FINISHING RESIN peter61 uk 7 863 April 20 2014 01 15 58 PM by wrongtimeben PVA release agent para handy 4 1 030 February 21 2014 10 44 17 AM by Subculture GRP Tubing Guy Bagley 3 549 November 17 2013 09 03 48 PM by Guy Bagley filler spike 1 445 October 21 2013 10 21 49 AM by luke1993 aluminium spike 7 735 September 23 2013 04 51 37 PM by spike paint spike 3 427 September 20 2013 10 29 04 PM by Tug Kenny Epoxy for Velux Window Protection Tug Fanatic 0 426 August 21 2013 12 56 47 PM by Tug Fanatic blue white foam para handy 12 993 July 30 2013 01 01 34 AM by murphy1570 Silicone surface to mould tonyH 5 562 July 28 2013 08 16 36 PM by Subculture Filler flybobby 22 4 795 July 10 2013 08 12 01 PM by ldv6 Home made cowl vents TailUK 10 1 517 June 28 2013 01 10 34 PM by Pat Matthews HELP WITH EPOXEY RESIN old shrimper 1 647 January 15 2013 11 10 43 PM by old shrimper EPOXEY VS POLESTER RESIN old shrimper 5 962 January 12 2013 11 49 20 AM by old shrimper Polyester resin carbon fibre hydrobob 5 968 December 09 2012 11 46 30 AM by hydrobob Thinned polyester catalyst bbdave 5 744 November 03 2012 12 34 51 PM by Subculture Glass fibre on glass fibre bruce74 8 1 682 October 29 2012 12 52 32 AM by

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/board,108.0.html (2016-04-25)
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  • Repairing / strengthening Hull
    No Motor is to Big for me Catch it if you can Phil Cragrat Shipmate Offline Posts 7 Model Boat Mayhem is Great Location KNARESBOROUGH North Yorkshire Re Repairing strengthening Hull Reply 8 on February 29 2016 07 05 36 AM Thanks all for your replies think I will get some of that tape as holding the hull up to the light there are three areas of thinning and holes Thanks again Logged Built Club 500 Caldercraft HMS Orestes Mars as they call it Building Caldercraft Puffer Northlight Caldercraft HMAV Bounty On the bench Caldercraft HMS Snake martno1fan Full Mayhemer Offline Posts 2 283 Location Blackpool Re Repairing strengthening Hull Reply 9 on March 08 2016 07 32 03 AM Id just use poly resin and chopped mat thats what its made of exept they used the cheaper white coloured resin rather than clear you can buy a repair kit at halfords with everything you need just tear off a thin layer of the mat it comes thick around 600 g but can be split quite easilly to thinner pieces id do the whole hull inside with one layer and enough resin to wet it out fully job done Or you can just repair the thinner parts you showed if you wish Reason i know its poly is you dont usually use chopped mat with epoxy as most mat has a binder to hold it together that epoxy wont break down Get yourself some acetone or you can use the wifes nail varnish remover easier to get locally than acetone lol and first use some 80 grit paper to rough up the inside then clean away the debri then clean the whole inside with acetone on a cloth prior to brushing in your mixed resin then apply your mat tear the mat dont cut or any overlaps will be visible and not fully incorporated into the other wet out your mat with a brush and more resin untill fully wetted out NOT OVER WET or it will get heavy pretty quick be careful to follow mixing chart on the tin Hope this helped Mart waveridermouldings Logged JimG Full Mayhemer Offline Posts 210 Model Boat Mayhem is Great Location Dundee Re Repairing strengthening Hull Reply 10 on March 08 2016 11 15 07 AM Quote from martno1fan on March 08 2016 07 32 03 AM Get yourself some acetone or you can use the wifes nail varnish remover easier to get locally than acetone lol and first use some 80 grit paper to rough up the inside then clean away the debri then clean the whole inside with acetone on a cloth prior to brushing in your mixed resin Mart waveridermouldings Nail varnish remover often contains oils which are good for your nails but not for cleaning before glassing Jim Logged Dundee Model Boat club http www modelboating co uk Cragrat Shipmate Offline Posts 7 Model Boat Mayhem is Great Location KNARESBOROUGH North Yorkshire Re Repairing strengthening Hull Reply 11 on

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/topic,54060.msg560341.html (2016-04-25)
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  • 3D Design & Printing
    4 170 March 30 2016 10 22 02 PM by malcf Hicks one lunger engine in 1 8 scale Pat Matthews 2 200 March 29 2016 03 28 40 AM by Pat Matthews 3D Printed Brass Pat Matthews 5 741 March 28 2016 09 26 34 PM by Pat Matthews 40mm Bofors single in 1 16 Pat Matthews 2 180 March 26 2016 04 20 19 PM by Pat Matthews 3D Printing a quick guide essex2visuvesi 4 246 March 18 2016 12 05 42 PM by essex2visuvesi 3D Design Printing New Board First Post Martin Admin 4 195 March 16 2016 11 43 31 PM by Capt Podge My 1st 3D printer 1 2 3 essex2visuvesi 52 5 807 May 05 2015 01 32 05 AM by Calimero Build a 3D Printer Big Ada 15 1 863 February 09 2015 07 11 53 AM by pole Shapeways com 3D Printed Parts 1 2 3 4 5 6 7 8 9 10 11 Marmoi 273 29 057 January 26 2015 06 14 11 PM by Martin Admin 3D Printer 1 2 RAAArtyGunner 49 3 418 June 02 2014 07 50 07 PM by grendel 3D printer Mikasa 4 679 May 29

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/board,179.0.html (2016-04-25)
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  • Login
    session length News Mayhem at Wicksteed 2016 May 28 29 Home Help Search Calendar Login Register Model Boat Mayhem Forum Warning Only registered members are allowed to access this section Please login below or register an account with Model Boat

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php?PHPSESSID=7bfe495188e0e3877d448d19b40d15f7&action=profile;u=15045 (2016-04-25)
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  • Water Jet Drives & 3D Printing
    shaft Be able to print the unit in one piece on my 3D printer With these points in mind I had to alter quite a few key aspects about the original design the biggest of which was that it was just to big to fit into the build envelope of my Lulzbot Mini which has a build volume of 150 x 152 x 158mm the original Graupner unit is a relatively long and tall unit so I lowered everything included a base plate to tie everything together and knocked around 40mm off the overall length Some limitations are placed upon me when designing things to be 3D printed namely that they are 3D printed and certain shapes are very problematic to print this is what lead to the motor mount being a bolt on item but it turned out not to be a problem as the entire structure is remarkably rigid During a break at work I machined up a solid shaft coupling from some scrap Brass stock this sits nicely between the motor and impeller shaft which is effectively half the length of the old one at 120mm the dual bearings in the motor support the drive end nicely with the other end of the impeller shaft being supported by a Bronzelite top hat bush in the stator housing Cooling has always been somewhat of an issue on this project the passive cooling system worked well by just didn t provide the throughput necessary to keep the motor cool my active pumped system was a bit of a flop altogether and best forgotten about but I am very pleased with the latest system tapping into the positive pressure inside the stator housing the harder the jet drive works the higher the pressure and the more cooling is provided which is evident in the video as cooling water expelled increases proportionately with speed Testing on the lake today Test run one to try and keep the balance of the boat I had decided to use a 2250mah 3S Lipo which should give ample power for a test run but be much lighter than the 5000mah 3S batteries I normally use Firstly some harbor maneuvers were carried out to test the steering reversing and also to check the cooling system was working with everything appearing to be in order I sailed out of the harbor and started to apply throttle when the Lipo alarm went off So in the boat came and no sooner had I lifted the boat out of the water than the alarm stopped I suspect that there is something very wrong with this battery a fresh 5000mah was swapped in for test two Test run two proved to be very successful indeed although it was not without incident the boat suddenly stopped in the middle of the lake although it did restart again and later examination of the GoPro footage revealed the problem to be loss of pump prime due to rough water oh and the ESC

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/topic,53340.msg565966.html (2016-04-25)
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  • Laser & Water-Jet Cutting
    1 Go Down Subject Started by Replies Views Last Post How small can you go Brian60 4 335 March 17 2016 04 45 34 PM by Umi Ryuzuki Laser Water Jet Cutting Martin Admin 0 95 March 16 2016 10 51 24 AM by Martin Admin Laser cutting machines etc carlmt 12 371 December 02 2015 03 12 20 PM by essex2visuvesi Laser cutters and similar canalpilot 12 1 716

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/board,180.0.html (2016-04-25)
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  • How small can you go?
    card but it needed some stiffness So I used a cereal box Ta daaaaa it worked I cut 4 of them so they could be glued back to back in pairs for a little thickness they would probably print even better on a 3d printer in plastic extrusion but I needed them now So here is one of them in 1 100 scale they are 8mm across the pins a swing needle eye for comparison Logged http www modelboatmayhem co uk forum index php topic 46369 0 html Humber Trawler http www modelboatmayhem co uk forum index php topic 49047 0 html POSH Venture http www modelboatmayhem co uk forum index php topic 53834 0 html Tramp Steamer carlmt Full Mayhemer Offline Posts 914 Figurin it out slowly Location Redditch Worcestershire Re How small can you go Reply 1 on March 16 2016 08 16 49 PM That doesn t look too shabby Brian I doubt very much that even a Shapeways 3D printed version would be any better it certainly wouldn t be as strong Laser cut card details are very popular with the card modelling enthusiasts there are more and more details being made available such as railings gratings and ladders A German company produces the best I have seen so far but I am beggared if I can remember who they are Logged www linkspanmodels co uk Umi Ryuzuki Full Mayhemer Offline Posts 742 Location PDX OR USA Re How small can you go Reply 2 on March 16 2016 08 32 15 PM Scratch building 1 24 1 87 working on 1 96 Kevin s Amundsen needed a lot of doors in 1 87 I built the base set and cast the rest for him oh yeah The etched hatches for that crane barge Logged Models

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/topic,54230.msg561271.html (2016-04-25)
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  • Wood Care:
    wood primer spike 4 624 November 10 2013 02 04 40 AM by tigertiger Cheapest source of wood strip for hull planking Edward Pinniger 13 7 054 October 23 2013 12 31 46 AM by tigertiger best filler spike 1 556 October 18 2013 09 16 50 PM by Stavros info please spike 6 672 October 15 2013 04 26 12 PM by dougal99 planking 1 2 chromedome 33 6 377 July 30 2013 11 10 46 PM by Mad Scientist Wood Identity BarryM 3 629 May 29 2013 08 54 07 AM by BarryM Sandy sealer Sandy 5 932 May 19 2013 04 00 24 PM by essex2visuvesi Scrubbed Teak Decking mrsgoggins 0 476 May 12 2013 08 31 50 PM by mrsgoggins deck wood SHADOWFLEET 10 957 February 25 2013 08 25 15 AM by SHADOWFLEET Flattening Straightening Lite Ply Sheets wally 7 1 317 January 27 2013 02 20 17 PM by Inertia Holes through frames Sandy 2 936 January 26 2013 11 53 48 PM by tobyker Decking Planking 1 2 3 4 Dan Lord 80 13 583 January 21 2013 06 14 08 PM by suffolk1928 Staining plywood hull and decks Sandy 3 734 January 02 2013 06 44 52 PM by Sandy Teak Veneer decking Nordlys 17 1 426 November 08 2012 08 36 45 PM by Stavros Cutting Ikea Lime blind slats drifter uk 4 798 October 26 2012 06 58 12 AM by drifter uk Wood types marcus 3 1 167 September 03 2012 07 12 57 PM by marcus Restoring Aerokits dodgy geezer 11 1 207 August 29 2012 08 07 14 PM by Artistmike Birch ply clinker construction F4TCT 3 1 503 August 25 2012 10 19 16 PM by Norseman wood supplier Andy k 2 705 August 25 2012

    Original URL path: http://www.modelboatmayhem.co.uk/forum/index.php/board,109.0.html (2016-04-25)
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