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 Post subject: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 5:15 pm 
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My bosch planer is dipping at the end of a cut. The blade is higher than the back bed. Have took the back bed off and there is no possible adjustment here, seems to just be factory set. The cutter wheel also looks to have no adjustment. Do you think it could be a bad batch of blades? Although I remember this happening recently although to a lesser extent. If i have a straight edge on the bad bed and run the blade through it's travelling around 10-15mm, not just skimming as it should.

Bloody thing is only 18 months old but must be the one ever tool I've forgot to register for extended warranty! Has anyone else had this problem? any fixes?


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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 6:00 pm 
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Wondering whether to get some genuine BOSCH blades see if it makes a difference


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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 7:31 pm 
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oz0707 wrote:
My bosch planer is dipping at the end of a cut.


I think you'll find that they all (all planers) do that, you have to take the pressure off of the front end when you near the end of a cut and transfer it to the back so that the fixed sole plate remains flat on the work and the front (adjustable) sole plate doesn't dip off of the end of the work piece.

I've never found planers to be a precision instrument in the same way that routers or properly set up circular saws are.

To me, they're a hand tool with a motor and reliant on a certain amount of operating skill.

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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 7:59 pm 
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aye it catches a few out that does.


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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 8:46 pm 
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unplug the planer
set depth off cut to 1mm
turn upside down
turn the blade block till the blades are away from the base
plastic ruler thin edge rested on the main base turn the depth knob till the front touches the ruler
it should now read zero
turn it over again and the blade when rotated should just touch and no more
then if propperly set up as said you transfer the load to the heal as you drop off to stop the nose dropping

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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 9:08 pm 
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I feel a bit offended being told how to use a planer. To be fair a planer shouldn't dip on the end of a cut if weight is on the back bed. It is happening because the blade is proud of this bed, creating a hollow then dropping once front bed falls off. What I can't get my head around is no adjustments and hasn't happened before now. Literally these Bosch planer cutter blocks locate the blade it's not like the fiddly Makita. Have either of you had bad blades before?


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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 9:15 pm 
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no offense meant from any off the contributers so please dont take it that way

perhaps setting the background would have cleared things up
like saying somthing like
" i have been using planers for year but----------- " :thumbright:

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 Post subject: Re: Bosch 40-82 planer
PostPosted: Wed Nov 14, 2018 10:25 pm 
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Don't worry half joking. But yeh half my life in the trade should hope I can use a planer! Anyway has anyone come into oversized blades before? Its either that, had a knock although I don't see what could have been knocked as nothing has any play/adjustment it's all factory set.


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 Post subject: Re: Bosch 40-82 planer
PostPosted: Thu Nov 15, 2018 8:14 am 
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Got some bosch blades this morning from screw fix. The difference is night and day! The blades bought yesterday - trend craft pro - I would estimate were .75mm above back bed. These bosch ones are a fraction higher and planer not dipping at the end. Honestly yesterday the machine was becoming unusable!


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 Post subject: Re: Bosch 40-82 planer
PostPosted: Thu Nov 15, 2018 10:50 am 
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i cant think off anything apart from maybe one thing but fully a guess and i doubt its possible to put the blades in backwards as they normally have a groove :dunno: :lol:

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 Post subject: Re: Bosch 40-82 planer
PostPosted: Fri Nov 16, 2018 7:13 pm 
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oz0707 wrote:
Have either of you had bad blades before?

I don't know about the other guys, but I certainly have had bad blades in the past once or twice - generally they were generic replacements, not OEM. My own planer is a one-cutter GHO40-82C, so I think we are talking the same tool. I have asked around and a couple of our guys have had maybe one set of cutters over 20 years - one other guy who had a couple of over size blades quite recently for his (2-cutter) GHO40-82. They were Chinese-made generics as well. The other thing I'd recommend checking from time to time with any planer is that the groove the cutter sits in is absolutely spotless. Resin build-up from palning certain timbers and even MDF or plywoods can interfere with correct registration of the cutter.

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