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Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

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Re: to drill or not to dril?

2004-03-26 by Phil

along with what stefan said, it sounds like you are using too large 
drill bits. Take your components and try them in the holes.  They 
should go in with out forcing.  If the wires are rattling around, 
your hole is way too big.  I use standard eagle library pad sizes and 
while tight, they work fairly well with the proper size bit. 

there's a fairly good table of bit sizes 2/3 of the way down this 
page - http://www.pacificsun.ca/~robert/pcb/pcb.htm  but I'd 
encourage you to try different size on a test piece of substrate.

--- In Homebrew_PCBs@yahoogroups.com, "mr_gees100_peas" 
<geovar13@h...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, JanRwl@A... wrote:
> 
>    WOw, I didn't expect such a great responce to my question. It as 
> been a great help. Well, Last niht I decid to do a test run. I 
drill 
> a few holes with 1/32 inch dril on an unecth left over copper 
board. 
> I hit the center well close to the center with a nail to make a 
dent 
> and use tat as a guide. It turn out that with a guide the drillin 
was 
> not too far off een with my cheapo press. The problem that I 
> encounter is that the pads arwe not big enoght. Once the hole is 
> drill there is little left of the pad. I'm going to have to go back 
> andadd extra thickness. The thing is that I only have three PnP 
> sheets left . I was thinking just to add a little extra thicknes to 
> the pads using a sharpie but in reality I think thats doing things 
> half ass. Wel, Ill keep you posted on what hapens. I plan to do 
this 
> this weekend.

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