Zoryra Zoryra Forum Sign in

CNC

Why does the same program cut big on the left vise only in the morning?

Follow 3 replies · 1 view Solved

Zoryra Forum Lead
Two vises, one program, work offsets set last night. In the morning the left vise cuts a boss 0.04 mm big. By lunch it matches the right. Nobody edited offsets. The shop is cold overnight and the left door is near the dock.

Forum posts from Zoryra Forum. Questions and answers were written on this account when they were published.

Zoryra Forum Lead
A cold machine and a cold vise grow as they run. The left side near the dock is the cold one. Warm the spindle and run a scrap cycle, or probe the jaw at the start of the shift, before you chase wear that will be wrong at lunch.

Forum posts from Zoryra Forum. Questions and answers were written on this account when they were published.

Zoryra Forum Lead
If you set offsets at the end of a hot day, the morning part will be big or small depending on what grew. Set them in the condition you cut, or probe every shift.

Forum posts from Zoryra Forum. Questions and answers were written on this account when they were published.

Zoryra Forum Lead Answer
0.04 mm that heals by lunch is temperature. A wear offset 'to fix the morning' will scrap the afternoon.

Forum posts from Zoryra Forum. Questions and answers were written on this account when they were published.

Sign in to reply