electrosteam
Member
- Joined
- Apr 2, 2009
- Messages
- 21
- Reaction score
- 2
Hi,
I have a stain on my mill table with a thin line following exactly the outline shape of the milling vice that had been clamped there.
Small vertical mill, FB2 clone.
Interposing bedding sheet of paper that had been discarded from my wife's volunteer activity printing.
Standard (cheap) A4 Bond paper.
Could be inkjet or laser machine.
Print side down to the table.
Vice installed for about a week.
Intermittent milling for an hour or so each day.
Soluble oil in turpentine as a coolant (1 oil to 8 turps) on MS cutting.
Mill has never seen water based coolant.
It is winter here (Sydney) with temperature down to 5 degrees C at night.
Any thoughts on what can cause the stain ?
Turpentine drawing chemicals out of ink or paper ?
Condensation along the outline edge that affects the paper in some way ?
Inkjet ink picking up moisture ?
Acid in paper leaching out ?
Does anyone else use bedding sheets of paper ?
What should I use as a bedding layer ?
Happy machining,
John.
I have a stain on my mill table with a thin line following exactly the outline shape of the milling vice that had been clamped there.
Small vertical mill, FB2 clone.
Interposing bedding sheet of paper that had been discarded from my wife's volunteer activity printing.
Standard (cheap) A4 Bond paper.
Could be inkjet or laser machine.
Print side down to the table.
Vice installed for about a week.
Intermittent milling for an hour or so each day.
Soluble oil in turpentine as a coolant (1 oil to 8 turps) on MS cutting.
Mill has never seen water based coolant.
It is winter here (Sydney) with temperature down to 5 degrees C at night.
Any thoughts on what can cause the stain ?
Turpentine drawing chemicals out of ink or paper ?
Condensation along the outline edge that affects the paper in some way ?
Inkjet ink picking up moisture ?
Acid in paper leaching out ?
Does anyone else use bedding sheets of paper ?
What should I use as a bedding layer ?
Happy machining,
John.