Homebrew PCBs

On Tue, 15 Jun 2010 05:08:35 -0700, you wrote:

>Buy carbide PCB drills from DigiKey. They have 1/8" shanks. Try to find a 
>Dremel drill press.

New carbide PCB bits from a commercial distributor are ruinously
expensive.  Shopping for the grab bags can get you resharpened bits,
many sizes you don't need, but still at a much better price.  The 20
lots are too small in quantity, I think I've seen a fifty lot for
about twice the cost from HF.  

Harvey

>
>Bob Macklin
>K5MYJ
>Seattle, Wa.
>"Real Radios Glow In The Dark"
>----- Original Message ----- 
>From: "Alessio Sangalli" <alesan@...>
>To: <Homebrew_PCBs@yahoogroups.com>
>Sent: Tuesday, June 15, 2010 1:21 AM
>Subject: [Homebrew_PCBs] About holes
>
>
>> Hi, I think I am becoming good at making holes even for vias and of
>> course for through-hole components. I can make tiny holes, the results
>> are very satisfactory, but part of the procedure is complicated.
>>
>> First of all, I bought these:
>> http://www.harborfreight.com/20-piece-solid-carbide-micro-bit-grab-bag-44924.html
>>
>> but they looked so fragile, I do not have a press, just a regular
>> dremel. So I returned them and bought:
>>
>> http://www.harborfreight.com/30-piece-hss-mini-drill-set-94606.html
>> for 4 dollars, 30 bits that work fairly well!!!
>>
>> The only problem is that the dremel can only take rather big bits. For
>> this reason I roll some tape around the bit up until the diameter is
>> compatible with the dremel collet, and then I drill. Sometimes I can
>> only make one hole, other times I can make 20 but eventually the bit
>> will "slide in" and I have to remove it, replace the tape and start
>> again. This takes a lot of time.
>>
>> Suggestions?
>>
>> bye
>> as
>>
>>
>>
>>
>> ------------------------------------
>>
>> Be sure to visit the group home and check for new Links, Files, and 
>> Photos:
>> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>>
>>
>>
>> 
>
>
>
>------------------------------------
>
>Be sure to visit the group home and check for new Links, Files, and Photos:
>http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>