Gammill PLUS User manual

PLUS MACHINE MANUAL

Gammill Quilting Machine Company
1452 W. Gibson
West Plains MO 65775
[phone] or [phone]
Fax: [phone]
Email: [email protected]
Website: http://www.gammill.net
Copyright © 2004 by Gammill Quilting Machine Company
Reprinting or copying this manual either whole or in part is strictly prohibited without
written permission from Gammill Quilting Machine Company of West Plains, Missouri.

Plus™ Stitch Regulation
The Gammill Plus Control Center is
a custom designed, state of the art
stitch regulator system for quilting
machines. The system provides two
basic operational modes, Manual
(constant motor speed) and
Automatic (regulated stitch).
Some features of Plus Stitch
Regulation are:
•Sensors and alerts for top thread
break and/or low bobbin thread.
•Switch selectable ½ stitch and full
stitch operations are available in
either manual or automatic mode.
•Dual Liquid Crystal Display (LCD)
units to operate the sewing head
from either front or back.
•Dual channel locks (horizontal
and vertical) that can be enabled
or disabled while sewing.
•Needle position function to set
the needle to stop in the up or
down position.
•Safety feature in automatic mode
whereby the motor shuts off
automatically if the machine is
not moved within five seconds.
Controls
A Plus Control Center display unit is
located on both the front and back of
the machine. Each consists of a 4-
line LCD display, several push
button switches, and one toggle
switch on the left side. In addition to
the display unit, there are two
buttons on the ends of the machine
handles. The left handle has the
black Needle Position (NP) switch
and the right handle has the red
Run/Stop (RS) switch.
The buttons on the front of the
display unit include:
H Enables or disables the
Left/Right (horizontal) channel
lock
V Enables or disables the
Front/Back (vertical) channel
lock
A Selects automatic (stitch
regulation) mode
M Selects manual (constant
speed) mode
+ Increases stitches per inch or
motor speed
- Decreases stitches per inch or
motor speed
1

A toggle switch on the left side of the
display unit is for the needle
positioner. Use this switch to select
either the needle position (1/2 stitch)
function or the single stitch (full
stitch) function.
The right side handle switch is the
Run/Stop button. It enables or
disables automatic stitching mode or
turns the motor on or off in manual
mode.
The left side handle switch is the
Needle Position switch. The
function is determined by the setting
of the toggle switch on the side of
the display unit.
Indicators
Indicators are lights, sounds or
messages that indicate the system
status and include:
Alert
This is a red LED on the
upper middle portion of the
display unit. It is illuminated
when low bobbin or thread
breakage as been
detected.
Enabled
This is a green LED on the
middle upper portion of the
display unit. It is illuminated
when the stitch regulation
function is activated.
Beeper
An audible beeper is
sounded when first
entering stitch regulation
mode or when low bobbin
or thread breakage has
been detected.
Display
A four line, 20 character
LCD is provided to
communicate settings and
other information to the
operator.
Channel
Lock
LED
Below the (H) and (V)
buttons are red LED's
which are illuminated when
the channel lock magnets
are activated.
2

Stitch Regulation
(Automatic Mode)
In this mode you will set the desired
stitches per inch. The stitching does
not start until you move the machine
head. While stitching in this mode
you may change the number of
stitches per inch. You cannot switch
from automatic mode to manual
mode while stitching in either mode.
1. Press Ato enter Automatic
mode. The word "Regulated" is
displayed on the control center.
2. Press the +(plus) or – (minus)
button to increase or decrease
the stitches per inch. You can
press these keys while stitching
as well to increase or decrease
the stitches per inch as you sew.
3. To begin sewing, press and
release the right handle switch.
Immediately after releasing the
switch, an audible beep sounds
and the green LED is illuminated
on the display unit. If the needle
is positioned down, the needle
will rise up out of the fabric. The
display unit will warn you that
automatic mode is enabled and
sewing head movement will
cause the sewing motor to run.
4. Move the sewing head to begin
sewing. While in automatic mode
you are free to speed up or slow
down movement of the sewing
head while still maintaining even
stitch length, however, rapid
speed changes should be
avoided. Moving the machine
rapidly or suddenly slowing the
machine after rapid movement
may result in a variation in stitch
length. Smooth machine
movement will result in better
quality stitching.
5. If you wish to increase or
decrease the stitch length as you
sew, simply press the +(plus) or
–(minus) button while continuing
to move the sewing head.
6. After sewing is complete, press
and release the run/stop switch.
If the needle positioner was
set in the down position
before you started stitching,
the needle will take a ½ stitch
and remain down in the fabric.
If the needle positioner was
set in the up position, it will
stop in the up position.
Constant Speed (Manual Mode)
In this mode you set the motor speed
then press the Run/Stop switch.
This starts the motor running at a
constant speed. You must
coordinate the movement of the
machine with the motor speed.To
enter Manual Mode, press the M
button. Set the motor speed by
pressing the +(plus) or –(minus) to
set the desired motor speed from 1
to 99% with +(plus) increasing the
speed and –(minus) decreasing the
speed. This speed can be adjusted
as you sew as well.
To begin sewing, press and release
the run/stop switch. The motor starts
running immediately after it is turned
on so you must be ready to
coordinate the movement of the
machine with start of the motor. Try
to maintain a smooth, even
movement of the sewing head which
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