Scraping process
In order to achieve stable machining accuracy anywhere in the work envelope, perfect flatness, squareness and straightness are required for all surfaces and axes.
DIXI Machines conducts 500 hours of scraping by skilled technicians on every machine to achieve the required accuracy.
Most machine tool manufacturers use an autocollimator with a 200 mm (7.9 in.) square measuring block, but DIXI Machines uses a 100 mm (3.9 in.) square block. Making the block smaller allows more precise measurement of the surface variations, because the contact area between the block and the scraped surface is smaller.
Block size for measurement
Scraped surfaces
Because flatness of matching surfaces determines spatial accuracy, excellent flatness of all components is required.
Therefore, scraping is done at all locations that are related to spatial accuracy.
Equalizing the load on the sliders
Before scraping, when the flatness is not perfect, there is an unbalanced load on the sliders. In contrast, after flatness has been immeasurably improved by scraping, the loads on all four sliders are equal.
