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wood that has already been surfaced (“jointed”) on one face and/or edge.
Both modes of operation involve passing the wood over a circular cutter block which holds two 260mm long HSS knives. This rotates at 6,500 RPM.
[[File:Planer parts.jpg|frameless]]
== Safety ==
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Eye protection is a must when surface planing, but is unlikely to be needed for thicknessing (you shouldn’t be bent over looking at the wood going through).
Dust masks
'''Never''' pass your hands over the exposed cutter block.
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'''Never''' manipulate the cutter block or knives with the machine plugged in. There are no interlocks to prevent the machine starting while it is being adjusted.
Long pieces of wood will require two people to handle them with this machine.
The HSE document on safe working practices for surface planning can be found here [http://www.hse.gov.uk/pubns/wis17.pdf http://www.hse.gov.uk/pubns/wis17.pdf ]
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There are some firm modelling foams which can be processed by the planer thicknesser. This should be done with extra
care, as they produce long chips which are difficult to evacuate and are known to
== Surface Planing / Jointing ==
Surface planning (Jointing) requires the outfeed table to be attached to the top of the machine, with the dust extraction port
installed beneath the cutter block, held in place by the thicknessing bed.
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maximum width is 260mm.
=== Setup & Operation ===
'''With the machine unplugged…'''
Attach the outfeed table. Two latches fix it into place on the left-hand side of the machine.
Install the dust collector below the cutter block on the thicknesser bed.
Check dust collection port is connected to the extractor, the bin is empty and that the hose isn’t blocked (a common issue).
Check the height of the infeed table relative to the outfeed table. Ideally it will have been left about 0.5mm below
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a forward force pushing work over the cutter block. For the end piece of stock, pull this from the outfeed side. '''Never
should your fingers ever go under the guard.'''
Work must only be fed across the blades from infeed to outfeed tables. Trying to go in the other direction will result in
the machine throwing the stock across the room...
It is common for there to be a slightly deeper scallop at the start and end of a piece of stock, called jointer snipe.
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if needs be.
Take repeated passes until the surface is flat.
== Thicknessing ==
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same size with a similar surface finish.
=== Setup & Operation ===
'''With the machine unplugged...'''
If needed, remove the outfeed table, and install the dust collector over the top of the cutter block, fixing it with the wing nut.
The outfeed table can be stowed under the machine.
Check the dust extraction hose is connected to the extractor, the bin is empty and the hose isn’t blocked.
Set the bed height so that it is a few mm lower than the maximum thickness of the stock.
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Start the machine, and then the extractor.
Pass the stock into the machine in the left-hand side feed port. Ensure the surfaced face is flat on the thicknessing table – rotating
the stock up or down will result in heavy snipe. When the table is high enough, the feeder wheel will grab the stock and pull it through.
Occasionally you might need to apply a bit of pressure to get the stock to engage with the feeder wheel, but not huge amounts. Similarly,
you might need to apply gentle pressure to maintain a steady feed rate through the thicknesser, but not much.
Raise the bed and repeat. Each turn of the crank raises the bed 3mm. 3mm is typically too heavy a cut in all but very softwoods.
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knives and machine. The chips coming off the thicknesser are typically larger than surface planing, and the extractor sometimes
struggles to clear them. Occasionally check that the hose isn’t jamming up at the extractor end.
Around 10 minutes of work will completely fill the extractor so this needs to be checked regularly.
Clean the machine – hoovering the chips out, and making sure the extraction hose is clear. The dust extractor bag fills quickly
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width is 260mm. It is technically possible to thickness pieces thinner than 5mm, with an auxillary table added to the thicknessing
bed, but care must be taken that the work doesn’t become so flimsy that the cutter block just destroys it.
If you need to take more than approx 8mm - 10mm off the work you should trim it to a rough size on one of the saws first, then
use the planer thicknesser to get to the final size.
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