I haven't seen "cheapo" die grinders you are talking about. The two
examples I gave in my earlier post are around $250~$300 AUD. A Dremel
kit by comparison is only around $85AUD. Yes I would agree these two die
grinders are a big and loud for PCB work, but at the time there was
nothing else I could find with hardened steel precision ground collets
at that price. I wear ear muffs to solve the noise problem, but all
these motors are too loud on naked ears. I admit I haven't checked out
the 240V Proxxon, but its price is up around $300AUD too. From web
pictures and descriptions, I think the cheaper 12V Proxxon will do the
job. Its major problem is there is no circular section on the body for
potential clamping. I'm sure the Proxxon marketers had done this
intentionally to make you buy the tippled priced 240V products.
Adam
Stefan Trethan wrote:
> I was looking at the small grinders in a tool shop only a few days ago,
> but they all have pretty bad collets. The Dremel were actually the better
> ones they had, with a tapered fit, but still nothing like the proxxon
> ones. The cheaper grinders all had nasty collets that i wouldn't even want
> to try.
> I don't need one now but i'm always looking if there's a good one so i
> don't need to take the proxxon grinder out of the drill press for other
> work.
> Maybe i'll get one of the "cheaper" proxxon models, they should have the
> same collets as the IB/E. You can get like a micromot for under 30eur new,
> that's much better than the IB/E for about 100eur, and it has the same
> precision colltes and the shaft seems to be of the same high quality. Only
> the front of the case is plastic not aluminum, but that shouldn't really
> matter, and the cheaper ones are 12V of course - not really a problem
> since i need a 12V PSU anyway for the lights.
>
> Anyway, seeing that the lower range proxxon units are not really much more
> expensive than the cheapo grinders i would much prefer getting one of
> those, knowing the quality.
>
> I don't know about the laminate cutters, those might well have good
> collets too. 100eur and up probably has good ones, as have the large die
> grinders but they seem a bit large and loud for pcb work. Best look
> closely at the collets in the shop, if they are brass or aluminum or
> nickel plated junk they are probably no good. You want steel and you want
> a good tapered fit in the shaft, the collet must be centered and straight
> in the shaft - if the collet isn't centerd how can the drill be? Proxxon
> says 3 flutes is superior to 4.
>
> ST
>
>
> On Wed, 18 Jan 2006 09:48:59 +0100, Adam Seychell
> <a_seychell@...> wrote:
>
>
>>For many years I've used a Bosch
>>
>>http://auptocs.bosch-pt.com/boptocs-au/
>>Product.jsp;jsessionid=E8C80E9C3D0286A199ED2A5EF701ED44?division=gw&ccat_id=9568&prod_id=5687&template=productimage.xsl
>>
>>
>>,which is probably very similar in power/size/weight to the RotorZip
>>
>>series mentioned by Mike Young. Metabo, and others make similar short
>>
>>length straight (die) grinders.
>>
>>e.g
>>
>>http://www.metabo.com.au/metabo/au/en/produkte/diegrinders/500wattstraightgrinderg500_6_06301_19.html
>>
>>
>>Prices are about 2 times that of a Dremel kit.
>>
>>
>>Adam
>
>
>