When there will be blue version of Bosch PBD 40 bench drill press
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Hello, when there will be blue version of Bosch PBD 40 bench drill press?

The current green version is not for professionals that is understandable the chuck wobble is 0.2mm, when it should be way lower because the motor housing moves with the chuck like on professional drill press. So when there will be blue alternative?

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Hi Juozas

Unfortunately not. There are currently no plans to produce a professional bench press. However there are quite a number of excellent manufacturers that do make them for professional use out there.

Bob



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Professional meaning the chuck is lowered with motor right, not extending down like most drill presses?
Any model names links ?

One store measuredchuck wobble and it was 0.015mm about 2cm from the chuck hmm if it is true than that's a bargain.
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Does anyone knows if the clutch gears, the housing and where ball bearings are seated etc. are plastic or metal?
From diagram it's impossible to understand: www.powertools-aftersalesservice.com/public/bosch/service

This post was edited by smilem on 25.10.2012, 13:06 o’clock
Reason: update

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Here is the diagram from bosch.

http://i.imgur.com/zaEI8.jpg

1. Why shaft that holds the chuck is so short? How about chuck wobble if it is so short?
2. Is the sliding surfaces of the aluminum directly contacting the steel column, what about premature wear?
3. Are gears plastic?
4. Is the Column that holds everthing made from steel and is it like a tube or solid column?

Thanks.


This post was edited by smilem on 17.11.2012, 00:34 o’clock
Reason: *

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Hey Smilem

Sorry I haven't replied yet. As it is a DIY product I don't have this information. Bare with me and i will send an email to that department to ask for some info.
G W
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Does anyone know if the PBD40 allows manual turning of the chuck?  Want to use this in the following way:
1. Drill workpiece using starter bit
2. Without moving workpiece, replace bit with tap drill bit
3. Manually turn the chuck to turn the tap drill bit to tap the work piece.

This way the workpiece doesn't move at all and I get better tapping results.  Keyed chucks allow manual turning by inserting the key into a hole on the chuck and turning by hand.  But since this is a keyless chuck I wonder if it supports it.

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Hi G W

The chuck does have holes to allow fitting a peg to allow turning of the bit for machining taps.

For what its worth I had recently got one of these and was really disappointed with the chuck wobble. A discernable click when you perturb the bit off axis in any direction. The no load wobble may be 0.015mm off axis as mentioned above but there is sufficient play in the chuck / spindle assembly for this to move excessively off axis on any slight lateral load.

The chuck design is convenient but the throat is too short and the purchase on bits to marginal, and no doubt contributes to the wobble seen.

The laser looks like a nice feature (although becomes moot given the issue above).  The gearing also is rather noisy and seems there is a fair amount of backlash evident under load.  Otherwise it is a really appealing design.

I've since returned the unit as unacceptable as this type of tolerance is just really poor for Bosch and at this price point, and particularly surprising for this type of design. My hand drill has got no discernable chuck wobble and I would expect at least this type of tolerance here

Anyhow, I would really be interested should a Blue Pro version be released.

This post was edited by stevebez on 01.05.2013, 12:31 o’clock
Reason: adding detail

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Where did you see a wobble specified as 0.015mm?


Thats too bad, the wobble is shown here:
https://www.youtube.com/watch?v=AsidtlLnrgI

That seems to be standard 1cm 10 revolutions dial indicator 0.01 per segment.
On video it is shown to be 7 segments max 10 so that translates to 0.01mm x 7 = 0.07mm to 0.1mm wobble.

I haven't bought it but if it's more than that then, any made in china drill press is like that. Very sad.
Are you sure you did not get a lemmon?



This post was edited by smilem on 01.05.2013, 23:35 o’clock
Reason: dd

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Well it’s quite likely I have a lemon. Judging from the state of the box (unsealed and weathered), and also it seemed the item had been assembled before although did not have any signs of much use, if any. So it is quite possibly this is an item that had been previously returned.

I had opportunity before boxing it up last night to have a closer look at the chuck assembly. Two things were off-putting. The first was the gearing backlash. At least a 1/8th chuck turn before gears binded - not the end of the world but perhaps indicative of the tolerances at play on the unit. The second was when I held the chuck and turned the shaft like a wooden spoon in a mixing bowl, there was a distinct and regular grinding/rumbling/noise/vibration, bit like the shaft was bumping on the balls in the bearings - perhaps it was the gears, which would be even worse. I can't believe Bosch would use bearings of that poor quality in this item and its possible they were not up to spec?

Anyway, I might give this another chance with a replacement. I was tempted to open the unit up to have a look at the internals to better understand the workings / tolerances and assess if it’s just the way it’s built or a unit specific fault, but perhaps this is unfair to do on an item to be returned.


This post was edited by stevebez on 02.05.2013, 11:32 o’clock
Reason: spelling