Instructions

will not complain and will always work with the instructions that you gave it. You tell it
to run, and it will die trying to please you. The Y- and Z-axis screws can be easily oiled;
however, the X-axis screw needs special attention. You can’t see it because it is located
under the mill table. The best way I have found to lubricate it is to move the mill table all
the way to the right, put some oil on your fingertips and transfer it to the leadscrew. As
the table is moved back to the left, oil will find its way to the internal brass nuts.
Remember, that any type oil is far better than none.
Starting in early 2010, all Sherline cnc mill saddles were fitted with an oil reservoir that
feeds lubrication to the X and Y leadscrews. This should be refilled every few hours
during cnc operation.
The slides also require constant oiling. I believe these oiling procedures should be done
after every four hours of operation. For more on lubrication see page 6 of the Sherline
Miniature Machine Tools Assembly and Instruction Guide (7
th
ed) that came with your
mill.
Decimal display and machine accuracy
The display panel allows dimensions to be entered to four decimal places in order to
maximize accuracy of the internal computer calculations. This is not meant to imply that
you should expect to achieve machine output to that degree of accuracy. In reality, you
should expect a quality machine in this price range to produce repeatability accuracy of
0.02 mm with 1mm pitch leadscrews or 0.001 with 20 TPI leadscrews.
CNC System Warranty
If within one year from the date of purchase of a new Sherline CNC system any tool or
component fails due to a defect in material or workmanship, Sherline will repair or
replace it free of charge. In addition, it has always been our policy to replace at no cost all
parts, regardless of age, which are determined to have been incorrectly manufactured or
assembled and have failed due to this cause rather than because of improper use or
excessive wear caused by continuous use in a production environment. In cases such as
this, Sherline will inspect the machine or part and will be the sole judge of the merit of
the claim.
Freight charges for returning a machine are not covered. Save the original packaging
material to use if the machine or computer must be returned to the factory for
service. Sherline will not participate in insurance claims where the sender didn’t make an
honest effort to package the items to prevent damage caused by normal shipping stresses
or repair said damage without charging the sender.
Merchandise that has been abused, misused, improperly maintained or insufficiently
lubricated is not subject to warranty protection. Proof of date of purchase and dealer
name may be required for service under this warranty. NOTE: WD-40 is for rust
protection, it is NOT a suitable lubricant!
Specific exclusion for wear due to production use
Although many Sherline tools have found there way into production environments, they
have been designed for intermittent use in home shops. It would be unreasonable to
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