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About ucoulddoit

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  1. The publications on the ASHS (Association of Scottish Hardwood Sawmillers) website might help you to get started with understanding some of the processes involved. What are the objectives of your voluntary organisation? I don't understand if you're just clearing a site or looking to make milling, etc. a long term venture? Andrew
  2. It needs to be milled into planks as a whole log will stay wet for years and probably split badly. It would be better to dry the planks outside with plenty of airflow and shaded from the sun instead of in a garage with little airflow. Rule of thumb for air drying is an inch thickness per year. So 2 inch planks need to be stacked for about two years outside. But, air dried planks will dry further in a centrally heated house which runs the risk of shrinkage, distortion, splits, etc. occurring in a finished piece of furniture if the moisture content hasn't been reduced further before making it. If you haven't access to a kiln, simply stacking the planks in the house for a few months works fine to 'condition' it, provided no one minds a stack of planks in the house.......! I run a dehumidifier in my workshop and planks stacked there are fine to use after a few months following the initial air drying. What size is the cherry tree? The first tree I had milled many years ago was a cherry my parents had planted and I made the mistake of milling the planks too thin. As cherry can distort a lot during drying, I had to scrap most of it as it was useless which was a shame as it had sentimental value. I now tend to mill cherry at 2 inches and re-saw it into smaller sections if necessary after drying. It's a lovely timber and well worth using. My avatar picture is a cherry tree I cut down in a garden. Andrew
  3. I noticed an auction just outside Glasgow coming up with a Sheppach Basa 5 which might be of interest. That's the updated model of the Basato 5.2. Current bid is £55! Hope the following link to the auction on 24th Sept works. Also, I realise I should have pointed out that 240V machines like this need a 16A supply Andrew Sweeney Kincaid WWW.SWEENEYKINCAID.COM
  4. I've been using a Sheppach Basato 5.2 for about 15 years and am very happy with it. 240V, has a cast iron table, 300mm depth of cut and a max 25mm blade size. Often use it for cutting tenons and the photo below shows it being used with roller supports when resawing some oak for window frames. Longest piece was almost 4m and weighed about 50kg initially, but the saw was quite stable despite 'pushing' really hard to overcome the friction on the table. Quite expensive though if it is just used for cutting tenons. I bought a ripper blade a while back after good reviews on Arbtalk, which are usually used for horizontal mills but is great for resawing large timbers on the vertical bandsaw. I wish it would take wider blades than 25mm and am pretty sure the Jet bandsaws have this option. I never cut the full 300mm depth of cut, but it is very accurate and with a decent blade can cut 200mm wide veneers, 2 or 3mm thick, all day long. I'd go for a significantly larger depth of cut that you need for regular use to be sure of having enough power, accuracy and stability. Andrew
  5. Visqeen is a just a trade name and a DPM plastic sheet should be fine. Andrew
  6. Just seen this thread and looking at the dates, might now be too late to comment? Anyway, after a quick scan through, I didn't see any mention that visqeen serves two purposes. In addition to reducing dampness, it provides a slip membrane. Once the initial setting involving heat of hydration (the chemical reactions) has finished, the concrete will gradually cool and hence shrink. If cast directly onto the ground or hardcore, the friction can sometimes resist the shrinking, creating a crack in the middle if the tension in the concrete exceeds it's strength. That's what the mesh or fibres are usually there for, to resist the early thermal cracking tension forces. The slab should be able to easily slide over what it's sitting on. Waterproof concrete will keep the water out, but cracks through the slab won't! Not relevant here, but a basement structure in a high water table would have water pouring through cracks if not properly detailed and designed. Having said all that, long lengths of slab are obviously more prone to early thermal shrinkage cracking and joints if needed (can be saw cut a day or so after casting) are usually 5 to 6m spacing. I guess the garden room is about this size in which case no joints needed if adequately reinforced and with a slip membrane. Andrew
  7. Not sure if this is the sort of advice you're looking for, but the following publication is available from The Association of Scottish Hardwood Sawmillers. Hope the link works OK. Making The Grade WWW.ASHS.CO.UK Andrew
  8. Another walnut video......... Shows a branch being cut off to reduce the width so it fits onto the mill, while retaining the crotch figure which is 'highly desirable' to some end users. Andrew
  9. A router system more or less avoids tear out on burrs, etc. compared to planing, which is a real bonus despite being slow, so I guess there isn't a single solution fit for all timbers? I'd be really interested to see where you go with this, either off the shelf or made locally as I'm also looking to move on from homemade jigs. Andrew
  10. The following video shows a jig for a hand held planer being used when making frames for a traditional wooden boat which might be of interest. The frames a quite narrow timbers but I guess it might work with a larger slab. 30. Surface Planing Jig / Framing Tools – Sampson Boat Co. SAMPSONBOAT.CO.UK Andrew
  11. Not sure what others think about about turning the log so that the crack is vertical and at 90 degrees to the horizontal saw cuts? It wouldn't be possible to have full width slabs, but it should minimise waste and slabs half the width of that log will still be very heavy and difficult to move about. I'd be worried about the crack following the grain which might undulate or spiral along the log length so although a saw cut might start at one end in line with the crack, further along the crack may be inclined and move into adjacent boards causing a fair bit of waste as they will be varying thickness at the crack. Andrew
  12. It does look a bit precarious, but felt quite safe and it's more or less the traditional method of raising much larger frames. I'd wear my steel toe capped boots next time though....... Hoping to have it wind and watertight by the autumn. Could have been done quicker, but I've still to make the oak framed window frames, etc. and it's just the reality that it takes ages when doing every bit of every different trade on a spare time self build project. Started almost 2 years ago by hand digging (no access for a machine) the trenches for a sewer diversion which was over 4 feet down......... Andrew
  13. Not sure if glulam is relevant to the thread title but the following link goes to a news item on the glulam manufacturers website which has three photoes of the frame they made for me to my design which I erected myself http://www.bucklandtimber.co.uk/news/buckland-timber-siberian-larch-gothic-portal-frame/ No need for anyone to highlight the H&S issues during erection! The design won’t be to everyone’s taste and it is a very small project, just under 20 square metres floor area, but there are other much more impressive examples on the website of what can be done by including a frame. The news item for the private swimming pool for instance shows how you can achieve a large open plan area with almost 100% glazing on the external walls. I included a simple frame on such a small project because it isn’t attached to the main building and with a heavy tiled roof, a large amount of glazing on the walls and other issues, it wouldn’t otherwise be stable in the hurricane force winds we get every winter. The front frame is set back about a metre and the roof cantilevers over this frame which means when sitting at the front, there is less obstruction to the view out of the front window which wraps around both sides. I’d like to have laminated the frames myself but just had too much on to be able do it when I needed them. Each frame is laminated from 51 layers of 9mm thick larch planks which enables a fairly tight radius of 2m at the haunch. Most of each frame will remain visible in the completed project. When working up the design for this project I looked into the option of a green oak frame which I would have fabricated myself and I also obtained an estimate from a manufacturer for supply only which I would have erected. But the glulam worked out to be a fraction of the cost compared to a manufactured green oak frame and we really like it! Andrew
  14. I agree that if you want a building with 'small' windows, relatively short span floors, modest sized rooms in an 'egg box type construction' etc. then normal brick and block or timber framed panels and timber floors is probably the way to go. But for an open plan floor layout with large areas of glazing, possibly replacing entire external solid walls, then a frame of some description is often necessary in order to provide overall stability to resist wind load. Could be steel, green oak, etc. etc. I'm part way through building an extension which is fully glazed on two adjacent external walls, has a pitched tiled roof and glulam 'arch' frames which many folk have admired and likened to being inside a church as there are no cross timbers or ties at 'ceiling' level. The front wall is glass from side to side and floor to the pitched roof and if I was doing this to earn a living I've a feeling I'd have a pretty good order book going forwards given the number of people who have enquired about it! I'd say there are plenty of people happy to spend some extra money to create a design which isn't achievable with more basic forms of construction. Andrew
  15. Structural design of traditional timber frames tends to be a fairly niche type of work in my experience and not many companies have developed expertise. I'm sure most structural engineers could prepare a 'safe' design but getting the expertise would probably make it a 'better' design. I don't know of anyone with this expertise around your area. But I was chatting to a traditional timber framer in Argyll recently and he uses a structural engineer in Edinburgh and I worked for a company in Edinburgh about 12 years ago who also have this expertise. I'll try to find the details and pm you later. A project I worked on about 10 years ago on the West Coast of Scotland was the largest traditional oak framed house in Scotland at that time and the timber frame company who fabricated and erected it, had the structural design carried out by their usual engineer in the South of England. My role was certifying the structural design plus designing all the other structural elements such as foundations, etc. Although their engineer was at the other end of the U.K. the whole process went smoothly, so distance isn't necessarily a problem, but you may also want someone local who is also able to grade your milled timbers? I'm pretty sure there are members of ASHS who are qualified timber graders and they may be prepared to pass on the names of engineers who have worked on projects they have supplied timber for which might yield a local engineer? Andrew


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