Hi all -

I've just bought a Bosch 4000-09 table saw. While setting the saw up, I
discovered to my surprise that the table isn't completely flat.

The problem is this: when I place a straight rule across the table, parallel to
the blade but about 1" away from it, I find that the rule doesn't sit flat -- it
rocks backward and forward, indicating that the table is higher in the middle
than at the front or back. So, for instance, if I press down on the rule at the
front of the table, it rises about 1mm off the table at the back -- and vice versa.

What's puzzling, however, is that if I try the same procedure, but with the rule
at the edge of the table (i.e., still parallel to the blade, but as far from it
as the table width will allow), the rule lies exactly flat along the table.

I've tried different rules, and even used the back of the rip fence, and in
every case I get the same c. 1mm play in the center of the table.

This morning, I visited Lowes, to look at a display 4000-09. The saw didn't seem
to suffer from the problem -- the table beside the blade is completely flat.

So, I phoned Bosch to discuss the problem. They told me that the saw is intended
for rough cutting, and the 1mm play is within the design tolerances. I'm not
sure whether I should accept this response, or instead return the saw under
Bosch's 30-day return policy.

I'd appreciate input from the forum, especially 4000-09 owners, as to whether
the 1mm play is acceptable, or whether I have a lemon on my hands.

Many thanks,

Richard

On Oct 23, 2:07 pm, Rich Townsend wrote:
Hi all -

I've just bought a Bosch 4000-09 table saw. While setting the saw up, I
discovered to my surprise that the table isn't completely flat.

The problem is this: when I place a straight rule across the table, parallel to
the blade but about 1" away from it, I find that the rule doesn't sit flat -- it
rocks backward and forward, indicating that the table is higher in the middle
than at the front or back. So, for instance, if I press down on the rule at the
front of the table, it rises about 1mm off the table at the back -- and vice versa.

What's puzzling, however, is that if I try the same procedure, but with the rule
at the edge of the table (i.e., still parallel to the blade, but as far from it
as the table width will allow), the rule lies exactly flat along the table.

I've tried different rules, and even used the back of the rip fence, and in
every case I get the same c. 1mm play in the center of the table.

This morning, I visited Lowes, to look at a display 4000-09. The saw didn't seem
to suffer from the problem -- the table beside the blade is completely flat.

So, I phoned Bosch to discuss the problem. They told me that the saw is intended
for rough cutting, and the 1mm play is within the design tolerances. I'm not
sure whether I should accept this response, or instead return the saw under
Bosch's 30-day return policy.

I'd appreciate input from the forum, especially 4000-09 owners, as to whether
the 1mm play is acceptable, or whether I have a lemon on my hands.

Many thanks,

Richard

Did they say what the tolerances were?
1mm seems like a lot (more than 1/16 if my convertor is calibrated
correctly), I would return it to the place I bought it.

"Rich Townsend" wrote

So, I phoned Bosch to discuss the problem. They told me that the saw is
intended
for rough cutting, and the 1mm play is within the design tolerances. I'm
not
sure whether I should accept this response, or instead return the saw
under
Bosch's 30-day return policy.

Tough call ...Bosch is right, for the price of an under $400 table saw.
Problem is, you're liable to find the same problem these days at 5 times
that.

How does the saw cut? If it does the intended job, unless you can exchange
for a known unit that has tighter tolerances, you may just have to live with
today's "perfection".

--
www.e-woodshop.net
Last update: 10/20/07
KarlC@ (the obvious)

"RayV" wrote in message
oups.com...
On Oct 23, 2:07 pm, Rich Townsend wrote:
Hi all -

I've just bought a Bosch 4000-09 table saw. While setting the saw up, I
discovered to my surprise that the table isn't completely flat.

The problem is this: when I place a straight rule across the table,
parallel to
the blade but about 1" away from it, I find that the rule doesn't sit
flat -- it
rocks backward and forward, indicating that the table is higher in the
middle
than at the front or back. So, for instance, if I press down on the rule
at the
front of the table, it rises about 1mm off the table at the back -- and
vice versa.

What's puzzling, however, is that if I try the same procedure, but with
the rule
at the edge of the table (i.e., still parallel to the blade, but as far
from it
as the table width will allow), the rule lies exactly flat along the
table.

I've tried different rules, and even used the back of the rip fence, and
in
every case I get the same c. 1mm play in the center of the table.

This morning, I visited Lowes, to look at a display 4000-09. The saw
didn't seem
to suffer from the problem -- the table beside the blade is completely
flat.

So, I phoned Bosch to discuss the problem. They told me that the saw is
intended
for rough cutting, and the 1mm play is within the design tolerances. I'm
not
sure whether I should accept this response, or instead return the saw
under
Bosch's 30-day return policy.

I'd appreciate input from the forum, especially 4000-09 owners, as to
whether
the 1mm play is acceptable, or whether I have a lemon on my hands.

Many thanks,

Richard

Did they say what the tolerances were?
1mm seems like a lot (more than 1/16 if my convertor is calibrated
correctly), I would return it to the place I bought it.

1mm = .03936996"
1/32" = .03125000"

On Oct 23, 4:28 pm, "HDRDTD" wrote:
"RayV" wrote in message

snip

1mm seems like a lot (more than 1/16 if my convertor is calibrated
correctly)...

1mm = .03936996"
1/32" = .03125000"- Hide quoted text -


guess my convertor was correctly calibrated.

"RayV" wrote in message
ups.com...
On Oct 23, 4:28 pm, "HDRDTD" wrote:
"RayV" wrote in message

snip

1mm seems like a lot (more than 1/16 if my convertor is calibrated
correctly)...

1mm = .03936996"
1/32" = .03125000"- Hide quoted text -


guess my convertor was correctly calibrated.

Guess again :^)

Swingman wrote:

Tough call ...Bosch is right, for the price of an under $400 table saw.
Problem is, you're liable to find the same problem these days at 5 times
that.

On a $2000 saw I'd hope they would replace the top under warranty if it
was 40 thou out of flat.

Chris

On Wed, 24 Oct 2007 15:33:39 -0600, Chris Friesen wrote:

Swingman wrote:

Tough call ...Bosch is right, for the price of an under $400 table saw.
Problem is, you're liable to find the same problem these days at 5 times
that.

On a $2000 saw I'd hope they would replace the top under warranty if it
was 40 thou out of flat.


I bought a 14" bandsaw from Rikon and the table was 1/64" (0.017") low on
one corner. They promptly replaced it.