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I have just acquired a vacuum pump FOC and am looking to make a vacuum bag set up. Does anybody make their own bags and if so what material do they use. I have seen some 500 micron PVC tent window material but was concerned it might be too unflexible Any help appreciated. Ian

One of the factors to consider is how thick the top / legs will be to give you a good joint area and size of reinforcement (domino/biscuit etc)

Suggest you contact west mids college as they run a lot of the day release courses for apprenticeships there

Hi Josh. A foam composite panel is effectively the entire roof buildup. It consists of a painted profiled steel outer sheet, 100mm of PIR foam which is foamed during the panel making process and a white steel liner sheet. The liner sheet is impervious to water and the foam does not absorb water...

I have just checked prices for a foam composite roof. Works out at £1000 + VAT + delivery so around £1400 plus fasteners and a few flashings. That would be 100mm insulation which would give a U value of 0.2 What U value means is that you will lose 0.2 Watts/heat per m2 per degree C. So for your...

I am only giving what is considered industry best practice Agree no need for z purlins but if using treated timber I recommend a strip of DPC between the timber and the sheet as a barrier as some treatment chemicals can react with the steel sheeting. Treated timber is far less likely to react...

There are 2 reasons why you have carbon steel fasteners Cost and Specification. Cost. Stainless steel fasteners are about double the cost of carbon steel so if a sheeting contractor can get away with a cheaper option they will do and pocket the difference. Cost per fastener isnt much but at 6...

Profiled steel sheeting can provide an excellent roof product but consider a number of points Most manufacturers guarantees are business to business so as a private individual they probably wont apply to you There are a number of different coating types and within each coating type a wide...

The point I am making is that laminations dont have to be 2mm constructional veneer thickness. Glu lam beams come in all sizes and large curved beams are fairly common (google curved glulam beams images) but the laminate thicknesses might be 25mm. On that basis you can select a laminate...

Laminations can be built up in sections but you need to have enough initial laminations to get no significant springback and this can only really be done with a single male mould approach. David Charlesworth did a fantastic oak table with laminated legs in this manner years ago in Furniture and...

]No don't be put off, go for it! But I think you are probably over thinking it. Get stuck in, head down brain in neutral! One of the first things I made (in a previous existence as a toymaker, age about 22 working in a little flat), was a rocking horse with laminated rockers. Bought 1/4" x 1...

Really like this. Where did you source the power supply from please. I see a clone or similar version in the offing Thanks Ian

PM me and I will send all details Ian

Yes saw your posts on the UJK thread. If you want details of the fence construction, just drop me a pm. The total sum for the hardware for the fine adjustment was only £16 and very easy to set up Ian

There has been a bit of debate about router tables and lifts so I thought I would write this A couple of months ago I took the plunge and decided to upgrade my router table. Having used the new set up for a couple of months, these are my thoughts on the new system as shown. I decided to build a...

WIP part 2 underframe and top Underframe. The halving joints on the top end of the legs were offered up to the underframe rails which had been left overlength and the curved housing line transferred. In practice this curve is very shallow. I also marked out the curved profile for the rails. I...

Hi Mike using threaded rods or coach bolts is a standard method for laminating . See Tag Frid teaches woodwork book for details It has a number of advantages over using clamps It is much lighter than large G clamps. If I had used G clamps I would have struggled to move it and would have needed...

Legs I only has 1” cherry, so the legs were always going to need to be built up. As I wanted to include some walnut stringing I decided to go for a laminated approach for the legs. The laminating former was built up from plywood. I shaped the first 18mm layer very carefully and then used this as...

Thanks Mike will sort out some of the WIP photos and some general comments Ian

I bought a Jessem router lift and AUK motor earlier this year. Fantastic piece of kit but still a few niggles. Will put a short review up with couple of photos later. The other thing to remember is that its all very well having almost absolute precision on the rise and fall, but you need to have...