> On 10/26/2015 08:54 PM, wulfman wrote:
>> To effectively drill in plastics you need to run the drill press on
>> the highest speed you can and use a freshly sharpened drill bit.
>
> If this is Perspex/Plexiglas, I've had great results with a good sharp
> Forstner bit in my drill press at medium
> On 27 Oct 2015, at 5:59 PM, ste...@malikoff.com wrote:
> And my advice, sadly learnt and forgotten quite a few times, always after
> drilling a critical part:
>
> CLAMP THE JOB DOWN!
+1 on Steven's advice, having learned this lesson the hard-way.
Hi
Yes clamp it down. I have a pillar drill and that has a table that
the workpiece can be clamped to.
This means they are at right angles to each other. So the drill bit
works as designed.
Sharpen or replace drill bits if they get worn.
Next start small and work up in drill size. There are
> > And my advice, sadly learnt and forgotten quite a few times, always after
> > drilling a critical part:
> >
> > CLAMP THE JOB DOWN!
> +1 on Steven's advice, having learned this lesson the hard-way.
I'll second (third? nth?) that!
I was once told that the majority
There are special bits for plastics, and they work quite well. Regular
bits are troublesome on most plastics.
--
Will
On Tue, Oct 27, 2015 at 12:38 AM, Chuck Guzis wrote:
> On 10/26/2015 08:54 PM, wulfman wrote:
>>
>> To effectively drill in plastics you need to run the drill
On 10/26/2015 11:38 PM, Chuck Guzis wrote:
On 10/26/2015 08:54 PM, wulfman wrote:
To effectively drill in plastics you need to run the
drill press on
the highest speed you can and use a freshly sharpened
drill bit.
If this is Perspex/Plexiglas, I've had great results with
a good sharp
OK Here's my two cents worth.
First put tape across the area.
Make sure it wont take the silk screen printing off.
Get a small drill. A 1mm PCB drill is a good choice.
Drill through with the drill set to a fast but not too fast speed.
Turn the work over and re-clamp it. open up the hole but
> On Oct 27, 2015, at 12:33 PM, Jon Elson wrote:
>
> On 10/26/2015 11:38 PM, Chuck Guzis wrote:
>> On 10/26/2015 08:54 PM, wulfman wrote:
>>> To effectively drill in plastics you need to run the drill press on
>>> the highest speed you can and use a freshly sharpened
On 10/27/2015 11:59 AM, Chuck Guzis wrote:
On 10/27/2015 09:33 AM, Jon Elson wrote:
The ultimate way to drill holes in Plexi is with an end
mill. It can
make a slight chipping when it punches through the back,
so you
either need a backstop material or lighten up the feed a
bit just
before
On 10/27/2015 09:33 AM, Jon Elson wrote:
The ultimate way to drill holes in Plexi is with an end mill. It can
make a slight chipping when it punches through the back, so you
either need a backstop material or lighten up the feed a bit just
before it goes through. (This of course requires a
On 10/27/2015 10:52 AM, Jon Elson wrote:
You CAN use an end mill in a drill press if you are careful. You get
no self-centering, so the work must be **SECURELY** clamped, as the
cutter may try to walk. But, you'll get perfectly round, smooth
holes. Twist drills tend to wander and make
To effectively drill in plastics you need to run the drill press on the
highest speed you can
and use a freshly sharpened drill bit.
It kinda melts its way through.
On 10/26/2015 8:28 PM, Bob Rosenbloom wrote:
> On 10/26/2015 8:05 PM, rod wrote:
>> Hi Guys
>> I need to get some comments
On Mon, Oct 26, 2015 at 11:05 PM, rod wrote:
> Hi Guys
> I need to get some comments on the following.
>
> 1. Would a matt finish be better than the current glossy one?
Hard to say, but generally, I think a closer match to the original is
better. Is
On 10/26/2015 8:05 PM, rod wrote:
Hi Guys
I need to get some comments on the following.
1. Would a matt finish be better than the current glossy one?
2. Should the round holes be pre-drilled?
Regards
Rod
I would prefer the holes be drilled. It's not easy to drill the plastic
Hi Guys
I need to get some comments on the following.
1. Would a matt finish be better than the current glossy one?
2. Should the round holes be pre-drilled?
Regards
Rod
On 10/26/2015 08:54 PM, wulfman wrote:
To effectively drill in plastics you need to run the drill press on
the highest speed you can and use a freshly sharpened drill bit.
If this is Perspex/Plexiglas, I've had great results with a good sharp
Forstner bit in my drill press at medium (say 750
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