What do you use to "LAP" on??..Glass..Metal..??

[PDL]

Seems to me an important factor that gets little attention!
I was using a piece of composite wood with plastic laminate applied to it but I think the next time it will be a piece of 1/4" plate glass on a solid table.

Lappers, sign in please.

 

[Shadow ÒÓ]

my kitchen counter top. Very flat. =)

 

[sgt. york]

Glass works the best for me.

 

[cjtune]

I use either a plane of glass or a ceramic floor tile for sandpapering but I lap with burnishing paste and a finger.

 

[Karsta]

Glass mirror - not a magnifying type.

 

[Tacoman667]

Shadow ÒÓ (Jul 29, 2001 07:32 a.m.):
my kitchen counter top. Very flat. =)

Same here.

 

[OpenFriday]

Glass mirror.

 

[Pitspawn]

The hubble telescopes' lens J/K

Actually, before any astonomy expert points out I'll tell ya. The hubble telescope is not really flat. A fleck of paint in the measuring instruments made the lens concave slightly. But its still damn flat.

I'd really like to get into lapping. Do I have to use machinery or can I just use a sandblock with the wet grit paper? And how do I make the circular motions w/o messing up the flatness? Any tips?

 

[dozier768]

a smoothe peice of pollished marble

 

[Mord-Sith]

glass and pollished marble are the only things you should lap on. Due to the method of which glass is made even relatively cheap glass is flat enough for a hobby lapping surface. I epxoied a piece of glass to a cutting board thats what I use.

 

[*spazzed*]

Machined piece of aluminum ;D

 

[Monaco]

I use an old chunk of polished marble, left over from my kitchen countertops. Works fine for me, I guess.

Anybody know of an easy way to verify that your 'sink or lapping surface really IS flat?

-the monster

 

[[Oc]acaridans]

just a block of wood.

 

[dozier768]

Monster of Rock (Jul 29, 2001 08:04 p.m.):
I use an old chunk of polished marble, left over from my kitchen countertops. Works fine for me, I guess.

Anybody know of an easy way to verify that your 'sink or lapping surface really IS flat?

-the monster

use a machiners edge and a feeler guage

 

[Mord-Sith]

dozier is that you or luke perry ?