Вы можете поместить обе анимации в элемент, который вам нужен для анимации. Я использую <animateTransform> для вращения пильного полотна и <animateMotion> для перемещения пильного полотна на пути. В качестве альтернативы здесь вы могли бы перевести форму.
Я немного изменил путь, потому что хотел исключить translate. Практически я использовал этот инструмент: Преобразование SVG-пути во все-относительные или полностью-абсолютные от Lea Verou, чтобы изменить путь к командам в нижнем регистре. Далее я изменил начальную точку пути на величинуиспользуется для перевода.
html {
background-color: #337ab7;
}
.cutline {
stroke: #222;
stroke-width: .1%;
stroke-width: .5%;
stroke-dasharray: 1% 2%;
stroke-linecap: round;
fill: none;
}
.sawblade {
fill: #eee;
width: 200px;
height: auto;
margin: 30px;
}
<svg viewBox="0 0 3387 1270">
<path id="cutline" class="cutline" d="M 2700 1000 L 100 1000 " />
<g class="sawblade" >
<path id="sawblade" d="M779.9,413.8s15.26,-47.61,-89.24,-73.22c-1.24,-0.3,-2.45,-0.58,-3.65,-0.84c20.57,-19,50.83,-37.45,85.5,-28.49c0,0,2.29,-50,-105.27,-47.38c-1.2,0,-2.36,0.08,-3.51,0.13c14.95,-23.6,39.28,-49.18,74.95,-49.6c0,0,-10.8,-48.82,-114,-18.32l-1.63,0.49c8.62,-26.2,25.66,-55.9,59.27,-65.14c0,0,-22.88,-44.46,-114.87,11.33c-1.1,0.66,-2.15,1.32,-3.18,2c1.12,-28,9.45,-62.41,40.3,-80.6c0,0,-33.69,-36.94,-107.93,40.94c-0.82,0.87,-1.62,1.72,-2.39,2.57c-6.15,-27.25,-7,-62.55,18,-88.07c0,0,-42.16,-26.89,-93.55,67.63c-0.27,0.51,-0.53,1,-0.8,1.5c-12.43,-24.62,-21.38,-57.66,-4.15,-88c0,0,-47.61,-15.25,-73.22,89.24c-0.3,1.24,-0.58,2.46,-0.84,3.65c-19,-20.57,-37.45,-50.82,-28.49,-85.49c0,0,-50,-2.3,-47.38,105.26c0,1.2,0.08,2.37,0.13,3.52c-23.62,-14.93,-49.18,-39.29,-49.56,-75c0,0,-48.82,10.79,-18.32,114c0.16,0.55,0.32,1.09,0.49,1.62c-26.2,-8.61,-55.9,-25.66,-65.14,-59.27c0,0,-44.46,22.88,11.33,114.88q1,1.64,2,3.18c-28,-1.12,-62.42,-9.46,-80.6,-40.31c0,0,-36.94,33.7,40.94,107.93c0.86,0.83,1.72,1.62,2.57,2.4c-27.25,6.15,-62.55,7,-88.07,-18c0,0,-26.89,42.15,67.63,93.54l1.5,0.8c-24.62,12.44,-57.66,21.38,-88,4.15c0,0,-15.26,47.62,89.24,73.22c1.24,0.31,2.46,0.58,3.65,0.85c-20.57,19,-50.82,37.44,-85.49,28.49c0,0,-2.3,49.94,105.26,47.37c1.2,0,2.37,-0.07,3.52,-0.13c-14.93,23.63,-39.29,49.19,-75,49.57c0,0,10.79,48.82,114,18.32l1.62,-0.5c-8.61,26.21,-25.66,55.9,-59.27,65.14c0,0,22.88,44.46,114.88,-11.32c1.09,-0.67,2.15,-1.33,3.18,-2c-1.12,28,-9.46,62.42,-40.31,80.6c0,0,33.7,36.94,107.93,-40.93c0.83,-0.87,1.62,-1.73,2.4,-2.58c6.15,27.26,7,62.56,-18,88.07c0,0,42.15,26.89,93.54,-67.63c0.28,-0.51,0.54,-1,0.8,-1.5c12.44,24.62,21.38,57.67,4.15,88c0,0,47.62,15.26,73.22,-89.24c0.31,-1.24,0.58,-2.45,0.85,-3.65c19,20.57,37.44,50.83,28.49,85.5c0,0,49.94,2.29,47.37,-105.27c0,-1.2,-0.07,-2.36,-0.13,-3.51c23.63,14.92,49.18,39.28,49.57,75c0,0,48.82,-10.8,18.32,-114c-0.16,-0.55,-0.33,-1.09,-0.5,-1.63c26.21,8.62,55.9,25.66,65.14,59.27c0,0,44.46,-22.88,-11.32,-114.87c-0.67,-1.1,-1.33,-2.15,-2,-3.18c28,1.12,62.42,9.46,80.6,40.31c0,0,36.94,-33.7,-40.93,-107.94c-0.87,-0.82,-1.73,-1.62,-2.58,-2.39c27.26,-6.15,62.56,-7,88.07,18c0,0,26.89,-42.16,-67.63,-93.55l-1.5,-0.8c24.69,-12.4,57.74,-21.35,88.04,-4.12zm-442.7,-23.46a53.14,53.14,0,1,1,53.14,53.14a53.15,53.15,0,0,1,-53.14,-53.14z" >
<animateTransform attributeType="xml" attributeName="transform" type="rotate" values="360 390.35 390.35; 0 390.35 390.35" dur="5s" repeatCount="indefinite"></animateTransform>
<animateMotion dur="5s" repeatCount="indefinite" rotate="auto" >
<mpath xlink:href="#cutline" />
</animateMotion>
</path>
</g>
</svg>