       @namespace.series.push @success_query, @value_query, @target_query
 
       @scale = d3.scale.linear()
-      @axis = d3.svg.axis().ticks(4).orient('bottom')
+      @axis = d3.svg.axis().tickSize(2, 0).ticks(4).orient('bottom')
 
     max_value: =>
       max = 0

        .enter()
        .append('svg:g')
        .attr('class', 'target')
        .attr('transform', (d, i) -> "translate(0, #{i * 40})")

      # labels first
      @items.append("svg:text")


      @axis = @blocks.append('svg:g')
        .attr("class", 'x_axis')
        .attr('transform', 'translate(0.5, 7.5)')

    refresh: =>
      t.update_scale() for t in @targets
