This block is 1/2 inch square , paper is from shop roll. The block will use almost any thickness paper.
Origional design sanding block.
See folder "Small Sanding Block" for details
Allen wrench is inserted through a hole in the front tightening screw .
The 5/64 Allen wrench engages a 8/32 socket head set screw which moves the rear block to tension the paper.
Allen screw that contacts the adjustable block for applying tension on the paper.
Tension block is pinned to maintain alignment.
Shot of my fingers before going to the manacurist.
Tension block and alignment dowell.
Paper installed but not tensioned yet.
Allen screw inserted and paper is tensioned.
Ready for operation.
Top two are 1/2 square block lower is 3/8 inch.
A batch ready for engraving.
Scan disk contains patent documentation.
Optional nose
Old style on top New style on bottom.
Old style uses an open piece of paper.When front of paper wears you have to discard whole strip. New design using a continuous loop belt. When front wears the belt tension can be backed off enabling the belt to be rotated to a fresh spot.
Adjustment pushes front nose forward to tension belt.
New style
Note gap showing belt tension-ed.
Belt removed.
Supplies needed to make continous belt.
Small section of cloth backed shop roll. 3M micro finishing film. The micro finishing paper is mi-liar backed. A good brand of super glue.
Sizing with of shop roll.
Shop roll can be torn to width but cutting eliminates fuzzes.
Determine size needed.
Cut splice angle on one end and wrap paper around block.
Mark paper.
Cut paper taped to plastic or wood strip .
Once red plastic is marked and cut this will be used to size all future belts.
Master template.
Shop roll sized in width ready to cut to required length using master guage.
Hold guage in place and mark paper.
After marking cut with sizzors .
Small piece of mi-liar ready for super glue.
Apply liberal amount of glue to cloth shop roll and to smooth side of 3M micro paper.
First end glued.
Add gule to other end.
After second end is glued and finger pressure has the pieces set ,transfer to vise and squeeze the piss out of it.
Almost done.
Trim mi-liar on sides if needed.
Paper installed on block.
Ready for some tension.
Done.
I have found this splice using the mi-liar paper on a cloth backed shop roll makes an extremely tough and strong joint. I use the same process for belts that are power driven. Experiment with other types of sanding paper, the mi-liar splice works on several other types of paper.
Three styles
Top row uses open fixed length paper. Tension with allen wrench from rear center. Center row uses closed belt paper.Tension with allen wrench enters through side. Bottom row style using "strong spring" to tension closed loop belt.No wrench needed.
Spring style.
Pin inserted in side to hold spring compressed for removing and installing belt.
New spring style dissambled
