Weekend Summary

After a very short shed visit today where I just managed to attach the air filtration to the underside of the mezzanine, I headed to hide in air conditioned space.  A disappointing loss of a day.

I got a little more done yesterday with the help of Dennis (cheers!!) who dropped around to see progress in person.  We got the dust extractor up to the mezzanine floor, and the last of the really cumbersome machines out to the shed – the 17″ bandsaw.  Only the drill press to go now before I start to work out where all the smaller machines and tools will go.  I had a look for some fittings to start the dust extractor run, but Masters doesn’t stock much in the way of 6″ pipe supplies.  I can either do what I normally do with 4″ everywhere, but i did want to see what having a 6″ main trunk line with 4″ going to each of the machines would work like.  I’m not sure how I will get extraction from each of the central machines, without blocking movement around the machines, or getting in the way on infeed and outfeed areas.  The perpetual problem!

Also had a visit from Michael (who is the editor of the Professional Woodworkers Supplies newsletter), and we discussed a number of ideas, including workshop layout.  The result of which is the workbench has now been moved to the back section of the workshop, and a new, smaller workbench and storage unit will be made to fit under the window.

Another bench will be made for the back corner, so the sink can be installed.  If only I had a supply of timber, and the machines to work it….. 😉

So to some latest progress photos:

Photo 1-02-2014 21 53 17

Tablesaw, router table and SCMS area.

Each machine can be moved (in fact almost every machine in the workshop can be reasonably easily repositioned given the wheeled bases I use everywhere), where different amounts of infeed and outfeed areas are required.  Given the room between machines, I can (for example), spin the tablesaw 90 degrees, move the router table completely out the way and break down full, even oversized sheets.

The dust extractor (as you will see soon) is now close to the main workbench, so can be spun around from the Kapex, and used with any of the other hand power tools at the workbench (and given much of the Festool is being stored under the arms of the Kapex, even they are close to hand).

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A bit more of a turn to the left, and the bandsaw comes into view, plenty of room around it, and behind it against the wall will (potentially) be where the drill press will go.  These are in the vicinity of the lathes too.  And now the workbench comes into view – within reach of the dust extractor hose.  Given the hose also carries power for the Festool tools, it is quite functional with minimal need to move the Cleantex.

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Next bit of a turn, and we see the lathe bay.  The air filter under the bench is now gone – mounted on the ceiling, and the Jet Mini on the bench is unclear what will happen with it still.  The Comet II is now on the lathe stand (some modification needed to get it to bolt down securely), and the DVR is still in prime position.  The bench is not too close to interfere with lathe operations, but close enough to have supplies and tools laid out as needed.  And there is good access to both vices.

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A quick 180 and we see the second bandsaw (set up with fine scrolling blades), the sink is out of frame to the left, which is also where the Tormek T7 will find a home.

Directly in front is the drum sander, with the outfeed now directly across the Torque Workcentre.  A small height adjustment will get the outfeed above the TWC.  The jointer as good infeed and outfeed area by the solitary mid-shed pillar.  The Walko workbench is currently where the new small workbench will be located, under the shed window.  Storage units are in the corner near the door.

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Final view shows the jointer, thicknesser, and Torque Workcentre (currently with a CNC Shark Pro on top).

So that is where I have gotten to so far.  Is looking functional, although the proof will be when wood starts to get worked, and that cannot be far away (if for no other reason but my own sanity).

All still tracking pretty closely to my original planning too.  From here on, there is no plan to work to, so there will be some sorting and re-sorting as I bring in the oscillating sander, linisher, scrollsaw etc etc.

Heat

The last couple of days have been particularly difficult.  A weekend, but it might as well be a week day as I can’t do anything that I had planned anyway – too hot.

So I decided to run some tests, to see what is going on.

First, current Bureau of Meteorology reports:

Frankston 19.6oC, Cranbourne 21oC, Melbourne 27.5oC

Local temp in the backyard: 35oC.  And this is not the hottest time of the day yet – Melbourne is expected to reach 39oC, 12oC hotter than current.  Wonder what my backyard will be then?  I expect we will hit 44-46oC locally, as has also been the case in recent weeks.

The sun is currently beating on the northern and eastern walls of the shed.

External Shed Conditions:

Ambient: 35oC

North Wall: 52oC
East Wall: 46oC
West Wall: 37oC
South Wall: 37oC
Northern PA Door: 56oC
Southern PA Door: 36oC
Roller Door: 55oC

Internal Shed Conditions:

Ambient: 31oC

North Wall: 34oC
East Wall: 39oC
West Wall: 34oC
South Wall: 35oC
Northern PA Door: 50oC !
Southern PA Door: 35oC
Roller Door: 46oC !

So what are the take-aways from this?  First, overall, the insulation is achieving some degree of block to heat transfer directly through the walls.  It could do better, but it is not the weakest spot in the shed.  I didn’t bother assessing the mezzanine area – there is a lot of heat buildup up there – probably a good 5-8oC higher, which would have been assisted if the whirlybirds hadn’t disappeared off the materials list at some stage in the process.  I’ll probably have to add a couple back on at some stage if the upper area is ever going to be useful (in summer) for anything but storage.

The eastern wall (given the time of day) is still showing the effects of the earlier morning sun, so the limit of the insulation was exceeded – it being a 39oC radiator into the shed, pushing up the ambient temp.

The weakest spot is definitely the doors – each being like having a 50oC radiant heater sitting there.  The PA door is hot and is a compromise to the boundary, but it is the roller door that is really letting the heat through.  If I ever expect to get any control over the shed conditions, the roller door issue will need to be addressed.  The PA doors can at least have insulation attached to them.  Surprisingly, the window did not seem to be a particular cause of issues – anything that was near the window and exposed to direct sun of course copped it.

Air conditioning the shed is not an option currently – the size of the unit required is a bit too expensive to think about.  I do wonder if an evaporative unit would make any difference?  Increasing insulation on the shed walls would also be an option, but only after some of the lower hanging fruit has been plucked, and the cost (and lack of ease of insulating after construction) will also be a real factor.

In the meantime, the shed is 4oC below external ambient, not exactly the 10oC I was told to expect.  And that is without the insulation compromised further with laserlight.

That may be currently workable (just) (although as the day progresses, the heat will continue to build), but I can’t do any filming out there – dripping in perspiration is not exactly the look I want on camera!

How have others solved the heat issue in their sheds?

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