CNC-1240 INSTALLATION & SET-UP
SET-UP CLEARANCES & CONDITIONS
When considering the permanent location for your SmithyCNC bed mill the following should be
taken into consideration:
The machine should be installed on a flat surface so that the machine does not rock or slide during
operation.
This location should be considered the machine’s permanent location for your machine.
If you need to move it, remove it from the stand first. Make sure your stand is level prior to placing
the machine on the stand. Improper installation and an unleveled machine can cause both numerical
error and loss of precision in your machining operation.
•The maximum temperature of your shop or working environment should not exceed 125 ºF.
•Humidity levels should not exceed 80%.
•Set up the bed mill stand so you have plenty of working space. Leave at least 3 to 4 feet of
clearance on the operating side of the machine. Note the suggested clearances of the other sides of
the machine in table 4.1.
Figure 4.1 Set-up Clearances
SmithyCNC 1240 Operator’s Manual
A Dimension B Dimension C Dimension D Dimension
CNC 1240 Mill 83 in
2110 mm
Table 4.1 Clearance Dimensions
20 in
500 mm
67 in
1700 mm
81 in
1700 mm
POWER REQUIREMENTS
Voltage Amps Amps
CNC 1240 Mill 220 15 Single
Power Requirements
220 Plug Configuration
The power cord/plug that is supplied with the SmithyCNC EZ-Trol System and SmithyCNC PC
Control option is a 220 volt NEMA 6- 15P plug. This plug will fit into a 220 volt NEMA 6-15R or
6-20R receptacle.
NOTE: Smithy recommends that you run your machine on a dedicated 20 amp breaker.
STAND REQUIREMENTS
You will need a stand that is capable of supporting the weight of your machine plus the maximum
allowable workpiece depending on your bed mill. (Please refer to the specifications chart for the
bed mill that you ordered to obtain this specification.) You will also need to add into this figure
additional weight for work holding devices, cutters and coolant. A good rule is to build a stand that
can support 5 to 6 times the weight of the machine without any appreciable, permanent
deformation. The benchtop should be rigid, level and well-supported. If you purchased one of the
optional bed mill stands available from Smithy, these stands have been designed to support the
weight of the specified machine.
Your work bench should be located in a vibration-free area with a floor that is designed to support
the full weight of the bench, machine, accessories, and materials.
If you purchased the optional Smithy Stand (Item 80-040 for the CN-1240 Mill then the holes for
mounting your machine are pre-drilled and tapped. If you are making your own stand use the bolt
pattern below.
NOTE: The mounting holes in the base of the machine are 10 mm.
DANGER
SmithyCNC strongly discourage the use of casters or wheels on metalworking machine stands. The
weight of the machine could result in the stand tipping while being moved. Once the machine is
mounted, consider your work bench to be permanent. If you must move the machine, first remove it
from the bench.
4.4 LEVELING
Before any machining of the workpiece is done, it is crucial to level your machine for best results.
Step 1: Find a relatively flat place for the installation of the machine and place the machine stand in
this spot taking note of the suggested clearance in table 4-1.
Step 2: Position the X & Y axes slides as close to the mid-stroke position as possible. The X & Y
axes can be repositioned manually with the knurled wheels at the end of the axes screws (For
leveling purposes, position of the Z axis is not as crucial as the X & Y axes slides).
Figure 4-4 : Level Shown parallel to the Y-axis.
Step 3: Make sure your stand's feet or leveling pads are touching the ground at the same time. If not,
adjust the feet to make sure the machine stand does not physically rock.
Step 4: Once all the feet or leveling pads are touching the ground and the machine is not rocking,
adjust the middle two feet (on both sides of the machine) off the ground by about ¼ inch while the
front and rear feet are on the ground. NOTE: Pictures shown in this document
SmithyCNC 1240 Operator’s Manual
Step 3: Place an appropriate size rod through the lifting hole in the base of the column at the back of
the machine. See Figure 4.7.
Step 4: Place an end of the rod through one loop of the a tow strap.
Step 5: Clip the other end of the tow strap into the clevis/eye hook at the front of the machine. Be
certain to secure the clevis before lifting.
Figure 4.8 Close up lifting strap, clevis and eye hook
Figure 4.9 Moving with a Forklift
Step 6: Repeat step 5 with another tow strap on the opposite side of the machine.
Step 7: Slide the tow straps over the forks and slowly raise the machine from the pallet. Before
raising the machine high enough to place on the machine stand, check to make sure the machine is
relatively level. If it does not appear level, lower the machine back to the pallet and adjust the tow
straps so that the machine is balanced.
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