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  1. #1
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    Default New Sherwood 13in Deluxe Thicknesser with Helical Spiral Head on it's way

    I had been debating this for a few weeks now and nearly hit the buy button last week but glad I procrastinated now as it went on special today for 999 down a 100..... might not seem like much but it all counts.

    I wasn't doing another unit with straight blades, no way I could afford a 15" or above especially not with a helical option. The Dewalt that ends up closer to or above 2k once you add the helical option was also a non starter so this is it. Just watched a another review and it shaped up nicely.

    I have my fingers crossed that it arrives for the weekend let the waiting begin.

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  3. #2
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    Jun 2018
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    Melbourne
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    Gday Phil

    I think you will like your new baby.
    I got one recently and am quite pleased with it so far.
    The only point of interest is the smallish exhaust setup.
    It worked well enough, but left some chips laying around.
    I will look for your feedback

    Cheers
    Keith

  4. #3
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    Quote Originally Posted by verawood View Post
    Gday Phil

    I think you will like your new baby.
    I got one recently and am quite pleased with it so far.
    The only point of interest is the smallish exhaust setup.
    It worked well enough, but left some chips laying around.
    I will look for your feedback

    Cheers
    Keith
    Thanks Keith,

    Glad your happy with yours

    The two videos i have actually found on youtube both show that it does the job pretty good. There was a few chips at the front but I don't think it matters just how good the dust collection is the physics of cutters when the last bit of the board goes past the cutter says that some chips will always be ejected towards the front.

    I've been meaning to take some 120fps footage of the chip ejection on the straight blade GMC i have to show how they get localised above the board, might be a chance to do comparison between the two when it gets here. I'll take the mess for the team to understand the chip/dust ejection going on.

    Cheers
    Phil

  5. #4
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    Aug 2004
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    Perth WA
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    1,881

    Default

    I'm all set for a 20" Carbatec unit.... when they arrive later this month.
    Experienced in removing the tree from the furniture

  6. #5
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    Canberra - West Belco
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    Default

    Big thumbs up to Timbecon... order is processed (i'm poorer), Toll tracking number provided but hasn't yet been picked up.

    Toll express to Canberra from Mel has general been overnight so i'm guessing Thursday if it's not yet picked up but would seem to be set for the weekend at least


    Rod: call me jealous for the 20" but i'll admit outside my price range

  7. #6
    Join Date
    Nov 2011
    Location
    Melbourne
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    Default

    Quote Originally Posted by Aussiephil View Post
    Big thumbs up to Timbecon... order is processed (i'm poorer), Toll tracking number provided but hasn't yet been picked up.

    Toll express to Canberra from Mel has general been overnight so i'm guessing Thursday if it's not yet picked up but would seem to be set for the weekend at least


    Rod: call me jealous for the 20" but i'll admit outside my price range
    Could this be a Friday prattle conversation??

    Iím jealous by the way, nice score Phil.

    Cheers Matt.

  8. #7
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    Quote Originally Posted by Simplicity View Post
    Could this be a Friday prattle conversation??

    I’m jealous by the way, nice score Phil.

    Cheers Matt.
    Well it's not here yet despite Timbecon assuring me it left on Tuesday, Toll is essentially overnight into Canberra from Mel but no updates on Toll tracking .... feeling sad right now

    Friday Topic might be "how to make Phil sad"

    in the mean time Dave in Tas has posted a quick review Sherwood 13inch Benchtop Thicknesser with Helical Head

    and for anyone interested I liked this youtube review SHERWOOD Helical Head Thicknesser review and comparison to Straight Blades - YouTube

    Cheers
    Phil

  9. #8
    Join Date
    Feb 2018
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    Shepparton
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    336

    Default

    even though chip removal doesn't appear to be a problem if you don't remove chips they will certainly mark the finished product big time.

  10. #9
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    I recently brought one of these and the first thing I noticed was that the chip extractor chute had a 50mm outlet with an adaptor to fit the 100mm hose which seemed backwards to me. I thought it should have the 100mm as standard and able to fit a 50mm adaptor. You do get a few chips on the tables and bed and I always make sure they are blown out before passing the board through again.
    When I first got mine I could see that there was some lift in one side of the cutter head when the timber first entered. I initially thought it was some slop between the height adjustment thread and thread in the head but after taking the base off found there was clearance between the bevel gear at the bottom of the thread so the whole thread assembly could move up and down. I made up a shim and fitted between the gear and the housing which took this movement away. I checked the cut for parallel and found that it was a bit out from one side to the other so by moving one of the bevel gears a tooth at a time I was able to get it very close to parallel.
    The good thing about these units is they come with the 4 sided carbide inserts as standard as apposed to HSS. I'm not sure what sort of quality the carbide is, so time will tell.
    Hope yours turns up today
    Dallas

  11. #10
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    Quote Originally Posted by mature one View Post
    even though chip removal doesn't appear to be a problem if you don't remove chips they will certainly mark the finished product big time.
    I see rather surprisingly to me that we have had 60 members read this thread so i'm feeling a little compelled to reply.........

    I'll limited the following to straight blade units, though most should apply to a helical head

    The sentence in it's own right is valid completely in theory, however starts to fall down in the real world under practical use with the claim it "will certainly mark"

    When is it true? - when you as an operator capture/trap chips under the wood being planed or leave chips on top of the wood when you put it back in. In both cases the chips will get crushed into the timber when passing under the infeed roller generally. though chips on top may get blown off by the air movement anyway. chips underneath result from a highly recommended but poor practice of lift the wood as your feeding it in to stop snipe .... this of course is more obvious with softwoods

    When is it not true? - practical use says we will place the timber on a chip free part of the infeed table ensuring nothing underneath, and we would shake/wipe the top as well. At this point there is nothing for the infeed roller to crush.

    All the writing above assumes no dust collection and a chip strewn environment.

    As the cutter head is rotating at high speed, the air movement caused by the cutter alone pulls/blows most if not all chips away from the cutting face itself, all dust/chip collection does is make this significantly more efficient. Apart from full or near full width boards this same air movement should blow chips off the top surface before the wood hits the outfeed roller stopping any chips being crashed at this point.
    The force of this air stream can be strong/fast enough to blow chips right off the front and rear infeed tables.

    Helical heads.....
    As the cutting nature of these heads is different and I personally have had no experience with a true helical head nor seen any videos on chip expulsion with them I am hesitant to say more than.... These heads still rotate at high speed and create localised air movements patterns designed to move the chips away from the cutting face.

    TLDR:
    Certainly - No
    Maybe - yes

    Real world I've run a few hundred meters of softer woods recently through the old GMC two blade unit with no marks caused by chips, well nothing that I could see or feel

    Jonathon Katz-Moses on youtube has 8 videos with 19000 frames per second footage of timber being cut with various things, the one looking at router bits is likely the most relevant Spiral Bits - Compression VS Upcut VS Downcut VS Straight - Never Before Seen 19,000 FPS HD Video - YouTube

    Dull blades would be an issue as they would tend to crush the chips into the cut edge if they caught them, sharp blades should just re-slice the chip into a smaller chip as well as take out the cut face.

  12. #11
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    Quote Originally Posted by Treecycle View Post
    Hope yours turns up today
    You have given me some things to check, Thanks

    Good news is that the tracking now shows it's out for delivery today (friday) .... if Toll is normal that means between 2 and 4 in my area

    Know what i'm doing after work and tomorrow

    Cheers
    Phil

  13. #12
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    Well i got this just before lunch time so got at least the unbox and inspect part done during a lunch break

    P2050063.jpg P2050064.jpg

    Thumbs up to the delivery guy, had backed up the garage already and was happy to gently place this on the floor ready to unbox.

    P2050067.jpg P2050065.jpg

    All the bits not already attached were above the motor/cutter unit, it was protected by a chunky bit of foam
    As you can see there are 5 spare 15x15mm 4 sided blades supplied and i seem to have got 2 Torx head handles.... hope that another box didn't get any.

    P2050069.jpg
    Close up of the spiral cutter head, 2 rows of 15 cutters, at 15mm per cutter there is a significant overlap between the 2 rows. They are definitely angled as well so should slice the fibres.
    330mm cutting width divided by 30 cutters is 11mm per cutter, a 15mm cutter in that case gets just under 2mm overlap per side (allowing for the angle)
    You can also see in the photo above the air exit for the motor area.
    I will be interested to video this cutting to see if the chips get expelled at an angle or the cutter head velocity is high enough they just go straight back
    Best virtual visualisation says they will be travelling effectively straight back but with a DC connected the airflow up from the base around the cutter and then out to the side with the spiral in place then the optimal exit would be to the right as you look at the unit from behind.... unless i have the airflow off the cutter head backwards.

    P2050071.jpg P2050073.jpg
    I have no idea what temporary glue they used for the label but it is as sticky as.... blankets come to mind

    Obviously the unit is aimed at the US market based on the 5/64 per rev height adjustment though this is near as to 2mm so when i check the head parallel to the bed with the dial gauge i'll check what the actual pitch is on the adjustment threads

    P2050075.jpg
    I just knew this would need to be tweaked so not surprised.... the infeed and outfeed tables both slope down to the granite table and result in a clear gap under a straight edge.

    My starting point will be the same as my old GMC.... everything dead flat and co-planer using the bed as the key.

    Cheers
    Phil

  14. #13
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    Quote Originally Posted by Aussiephil View Post
    The sentence in it's own right is valid completely in theory, however starts to fall down in the real world under practical use with the claim it "will certainly mark"

    When is it true? - when you as an operator capture/trap chips under the wood being planed or leave chips on top of the wood when you put it back in. In both cases the chips will get crushed into the timber when passing under the infeed roller generally. though chips on top may get blown off by the air movement anyway. chips underneath result from a highly recommended but poor practice of lift the wood as your feeding it in to stop snipe .... this of course is more obvious with softwoods

    When is it not true? - practical use says we will place the timber on a chip free part of the infeed table ensuring nothing underneath, and we would shake/wipe the top as well. At this point there is nothing for the infeed roller to crush.

    All the writing above assumes no dust collection and a chip strewn environment.
    With no extraction, chips WILL get deposited behind the head and get pressed in by the outfeed rollers. I know this to be true because I've done it.

    That being said, it was a big industrial machine, so the head is spinning slower (although the surface speed should be about the same) and the chips are much bigger when you're taking 3mm a pass.

  15. #14
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    Oct 2008
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    Leopold, Victoria
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    I had to tweak the tables on mine too but wasn't spoilt like you and get 2 Torx drivers. The sticker on the top is not quite right saying its 5/32" per rev which is very close to 2mm, but its actually 1.6mm or 0.063".

  16. #15
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    Quote Originally Posted by elanjacobs View Post
    With no extraction, chips WILL get deposited behind the head and get pressed in by the outfeed rollers. I know this to be true because I've done it.

    That being said, it was a big industrial machine, so the head is spinning slower (although the surface speed should be about the same) and the chips are much bigger when you're taking 3mm a pass.
    Entirely different class of machine, not really apples for apples. I didn't think to clarify that i'm referring to the hobby class lunchbox units that a lot use.

    In the lunch box style machines the rear roller is often under the rear ejection shute and would be unlikely to get chips and even then as they are rubber rollers it if it did they would just be squashed into the rubber rather than the timber

    Cheers
    Phil

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