A device comprising a frame having a bottom surface; a clamping device securable to the frame; and means for aligning the clamping device in a substantially straight line adjacent to a saw, the saw connected to a table is provided. In one embodiment, the table has a miter slot and the means for aligning comprises a miter track securable to the bottom surface of the frame, the miter track adapted to fit within the miter slot. In one embodiment, the device can also be used as a fence. A conventional saw, such as a stationary and upright band saw can now be converted into a handy and portable sawmill using one of the devices described herein as an accessory, without the need to make any alterations to the saw or saw table. Users can now, for the first time, hold very short (less than about one (1) ft) and small diameter (down to about one (1) inch) logs in the device of the present invention and slice them into lumber without causing splitting of the log.