This podcast/mp3 talks about why Australian (and New Zealand) wooden boatbuilding is different from the rest of the world..Click to listen to the talk. This is the third of three.
This is the second of my talks in the USA. It focuses a bit more on construction and some of the methods that can be used to keep a boat light and simple, but very strong and stiff.It also discusses how there is a “creep” in boatbuilding and design that increases the weight of boats way over what is really needed for a strong structure.
[Translate] It is a bit hard finding information on my forum as the list is not very ordered, so I have attempted to fix this.There is a general building section then each boat is in alphabetical order.To see all the images you may need to become a member, however, they are a good bunch and […]
[Translate] One of the new launchings of the Goat Island Skiff had a problem with a slippery floor… Here is my favourite suggestion. Nice way to deal with it is the same way we did the PDRacers. I couldnt find he pics on the building thread. You varnish the cockpit floor normally. Then mask off […]
[Translate] The first part was up last week. This week we talk about traditional vs modern sailtypes – everyone knows I am a fan of trad rigs because of their low cost – but here I go into the influences on the other side. I love the efficiency of modern rigs so I use all […]
[Translate] —gGluing Endgrain Gluing timber end grain with epoxySee drawing of endgrain right.. The basic problem is that end grain is highly absorbent so it can steal the resin from the join leaving insufficient for good bonding. The trick … is to feed the end grain some mixed resin before the glue mix is put […]
[Translate] There was the suggestion that very coarse sandpaper was the best to use on a timber surface to ensure good bonding when gluing or fiberglassing the surface. This is not recommended – the following explains why. There was the suggestion that very coarse sandpaper was the best to use on a timber surface to […]
[Translate] This is a problem most of use come up against at least once. However it is unlikely to happen a second time. Richard wrote to me asking why his epoxy was still soft 3 days later. He suggested it might be because of one of: 1. The immediate guess is that it’s been too […]
[Translate] There are two tricks to sikaflexing between strips. Use the Sika Primer – it improves the bond strength to the timber for a permanent job. You can get away without it often, but it changes the situation from a fairly strong bond to a hugely strong bond (you’ll know this if you have ever […]
[Translate] Most people know about using Cordless Drills to drive screws into timber now, but I remember when it was new and exciting! Here’s my spiel from my plans sets Cordless Battery Drill with Clutch. A marriage made in heaven. The drill can be battery (most convenient) or mains powered. It is best if it […]
[Translate] Paint vs Varnish Paint is more durable and will protect the epoxy and timber the best. Varnish hides a rough surface better. If you have done a rough job the timber grain will hide it. Make sure the varnish contains ultra-violet filters. It is a photo from the Goat Island Skiff Calendar put together […]
[Translate] The two methods here save a lot of mess when building boats with epoxy. They also allow accurate and fast placement of mixed epoxy glue. Most supermarkets have varieties of “snap lock” bags. They have a seal across the opening of the bag that can be pressed together with finger pressure. They make it […]
[Translate] If ply sheets are precoated it saves lots of time. It is easier to coat areas on the flat Gravity works with you to keep the coated surface level so there can be no runs. It is easier to get an even distribution of epoxy on the surface There is much less chance of […]
Fibreglassing 3 – bigger areas – centreboards, rudders, leeboards, keels and larger hull areas requires a different method. Normally glass is draped dry over a clean dry surface and epoxy is applied to the outside and pushed in through the weave.
[Translate] Where a seam has to be glassed and it is difficult to make the glass sit flat because of a complex curve then a double bias tape is used. It is also useful for complex 3D curves like the tips of centreboards and rudders. Commercial double bias tapes can be bought but you can […]
[Translate] This is the normal method for fibreglassing small areas – typically using fibreglass tape to hull seams. Here I document the process of coating the hull and glasstaping the chines in one hit. Integration of different steps in this way is one of the major efficiencies of modern epoxy boatbuilding. However if simply glass […]
[Translate] Most quality boatbuilding epoxy manufacturers have a structural boatbuilding product. They normally are “high solids” boatbuilding epoxies that have uneven resin to hardener ratios (2:1, 3:1, 4:1 or 5:1) which you have to add powder to make a glue or filleting mix The same companies often produce pregelled products that are mixed in a […]
[Translate] One of the great leaps forward available to us when using epoxy is being able to eliminate fastenings (screws,nails, bolts etc) from the structure. Many builders now only use fasteners to temporarily hold things together while the glue sets up.The temporary fasteners are removed and can be re-used many times. Eliminating fastenings also speeds […]