Incra LS Positioner Owner'S Manual Download Page 15

INCRA LS Positioner Owner’s Manual 

 15

You’ll notice one or more thin plastic shims in the 

cavity behind the metal spring engager, Fig. 34.  

To change the clamping pressure, simply add or 

remove shims.  If you want to increase clamping 

pressure, add one of the supplied shims.  If you want 

to decrease clamping pressure, remove one of the 

thin shims.  The matte finish shim is .005”, the clear 

shim is .010” and the white shim is .020”.  When 

making adjustments, add or remove only .005” 

at a time, and keep the thinner shims between 

the metal spring engager and the white shim, 

Fig. 35.  Press the metal spring engager forward 

with your finger and slide the black UHMW bearing 

pad between the shims and the carriage clamp.  
Note: You will notice a piece of thick tape adhered 

to one face of the black UHMW clamping pad.  

When reinstalling the clamping pad, make sure 

the taped surface is facing away from the carriage 

clamp, Fig. 34

Press the UHMW bearing pad forward and reinstall 

the set screw.  

realigning the Fence racks

To check or adjust the alignment between the 

INCRA positioning racks attached to the back of 

your Pro II Fence, begin by loosening the fasteners 

securing the racks to the fence.  Align the first rack 

flush with the end of your fence and tighten the 

fasteners.  Now, clamp the INCRA Shop Stop to 

your fence so that it bridges the gap between the 

ends of racks #1 and #2 as shown in 

Fig. 36

 and 

tighten the mounting screws for rack #2.  Next, 

move the Shop Stop to bridge the gap between 

racks #2 and #3 and tighten the mounting screws 

for rack #3.  Finally, bridge the gap between 

racks #3 and #4 and tighten the rack #4 mounting 

screws.  This process aligns the racks so that the 

Shop Stop will operate accurately along the entire 

length of the fence. The racks on the Wonder 

Fence can be aligned in the same way. 

CAUTION:  Whenever making clamping 

pressure adjustments, always make sure 

that adequate pressure remains to hold the 

carriage rigidly in place when clamped in 

the fully extended position.

FIg. 34 

Clamping pressure adjustment

Black UHMW bearing pad

Set screw

Thin plastic shim

Metal spring 
engager

Thin plastic shims

FIg. 35 

Clamping pressure adjustment

Metal spring engager

White shim

Place adjustment shims 
between white shim and 
metal spring engager

FIg. 36 

Realigning fence racks

Second: Bridge the 

gap between racks 

#1 and #2 with 

the Shop Stop

Rack #4

Rack #3

Rack #2

Rack #1

Third: Tighten the 

mounting screws 

for rack #2

Fourth:  Repeat 

the steps to 

tighten racks #3 

and #4

First: Tighten this rack’s 

mounting screws

Taped surface this face

  AutO CenterInG SCAle 

(

ImperIal model only

)

Before installing any of the INCRA joinery templates 

in preparation for cutting a dovetail or box joint you 

must first position your fence so that the router bit 

is aligned with the center of your board’s width.  

This can be done using the manual “centering” 

method described on pages 3-4 of the INCRA Master 

Reference Guide & Template Library.  The manual 

method does require a trial cut on a scrap of wood 

but it will work on any width of stock.  However, if 

you are working with a board width that is some 

multiple of 

1

16

” you’ll find the INCRA Auto Centering 

Scale provides a quick and easy way to find the 

center that requires no trial cuts!   

Summary of Contents for LS Positioner

Page 1: ...positioning element sets a new standard for positioning accuracy guaranteeing fence placement to within two thousandths of an inch over the full range of the fence with zero repeatability error This translates to perfect cutting results regardless of skill level first time every time If you are interested in joinery for your next project you need not look further than your new LS Positioner for su...

Page 2: ...Positioner Standard System LS Positioner Base LS Positioner Carriage Right Angle Fixture 28 Pro II Fence Incra Shop Stop 2 INCRA Woodworking Tools Precision Rules 13 Telescoping Stop Extender Bar with Stop ...

Page 3: ...ture Wonder Fence Heavy Duty Split Fence Incra Shop Stop 13 Telescoping Stop Extender Bar with Stop 28 Pro II Fence Note Also available for current Ultra owners the Incra LS Upgrade Package includes only the LS Positioner Carriage and Base as shown in Fig 1 on page 5 INCRA LS Positioner Owner s Manual 3 ...

Page 4: ...ng component descriptions and the illustration in Fig 1 Lead Screw Positioning Element The LS Positioner obtains its great accuracy and repeatability from the precision lead screw which positions the fence in exact increments of 1 32 1mm metric version Auxiliary Scale Slots Four auxiliary scale slots are provided to allow additional setups and cutting operations to take place without altering the ...

Page 5: ...c version After micro adjusting the dial can be re zeroed to the pointer for future adjustments Fig 1 SETUP Mounting to your Router Table Note If you are setting up a table saw based LS read the Getting Acquainted and Operations section of this manual then follow the instructions in the TS LS owner s manual Drill Mounting Holes Unlock the carriage clamp and carefully remove the carriage from the L...

Page 6: ...ding your router table length Screw aluminum or steel angle to the underside of the router table to provide support arms for a table extension Fig 3 The extension needs to be flush and parallel to the table top Shim into alignment as necessary Existing router table top Wood screws Aluminum or steel angle 5 Drill 5 16 diameter holes Mark where leading edge of LS Base will be positioned 1 2 minimum ...

Page 7: ...ut 1 of the bar remains exposed and tighten the fastener Fig 8 Place a washer and a 1 8 thick nylon washer on the 20 x 2 socket head screw insert through the extruded hole located on the extender bar stop and loosely thread on the 20 rectangular nut Slide the nut into the T slot located on the front of the extender bar Slide the extender bar stop until the flat side of the stop contacts the end of...

Page 8: ...r System Only While you should read the Safety Operation and Applications sections of the included Wonder Fence owner s manual it is not necessary to read the Fence and Hi Rise mounting instructions in that manual Just follow the instructions below for proper mounting of the Wonder Fence and Hi Rise Fence Cap to your LS Positioner Attaching the Wonder Fence to the Pro II or TS Fence Note In the 17...

Page 9: ... the fence cap braces Slide the support brackets up to firmly contact the underside of the fence cap braces then tighten the socket head screws Fig 18 Note Support brackets are not required for use on the TS Fence Slide the 2 rectangular nuts on each Wonder Fence half into the T slot located on the front face of the Pro II Fig 14 or the TS Fence Fig 15 Position the Wonder Fence halves so that your...

Page 10: ...s back into the threaded holes in the dual pilot rectangular nuts for storage 2 3 Fig 19 Attach cap extender First Insert fasteners and slide 10 32 hex nuts into T slot on top of braces 10 32 x Phillips screw with flat washer Second Position cap extenders to allow future access to socket head screws through slotted hole Fence cap extender detail 19a Third Slide cap extender forward to contact brac...

Page 11: ...op body about 1 8 turn then turn the machine screw located at the end of the stop Fig 24 Each full turn of the screw moves the stop surface exactly 1 32 approx 1mm When turning the screw counterclockwise push the stop body toward the screw Always tighten the two black thumbscrews after micro adjusting Fig 24 Micro adjusting First Loosen both black thumbscrews Leave both white thumbscrews fully tig...

Page 12: ...nce to one of three initial positions A Slide scale to 0 for a direct readout of dimension A Total length of cut B Slide scale to minus of bit diameter for direct readout of dimension B C Slide scale to minus bit diameter for direct readout of dimension C C B A OPERATION Moving to a New Scale Setting Moving the fence to any new scale setting is just as easy as moving any other fence you ve used be...

Page 13: ...he dial not the red knob with your fingers See Fig 30 Zeroing the Fence to Your Cutter In order to ensure accurate cutting results from any fence for general purpose routing the fence must first be zeroed to the cutter Fig 31 To zero your fence unlock the carriage clamp and slide the fence up to the edge of the cutter Sight down the length of the fence to check for a gap between the fence and the ...

Page 14: ...is that easy You re sure to find many cutting situations in your shop where the precision of the LS Positioner will benefit you and your work Joint Making Joint making represents one of the most exciting applications for your INCRA LS Positioner Just by applying a little technique to the considerable precision of the LS Positioner you ll be able to add joinery for box and drawer making to your lis...

Page 15: ... mounting screws for rack 3 Finally bridge the gap between racks 3 and 4 and tighten the rack 4 mounting screws This process aligns the racks so that the Shop Stop will operate accurately along the entire length of the fence The racks on the Wonder Fence can be aligned in the same way CAUTION Whenever making clamping pressure adjustments always make sure that adequate pressure remains to hold the ...

Page 16: ...on on the scale that matches your selected stock width directly under the hairline cursor Lock the fence in place Example If you are centering on a 6 wide board slide your fence until you see the 6 mark on the Auto Centering Scale under the cursor and lock the jig in place Now slide your joinery template into one of the scale slots position the suggested center cut mark directly under the hairline...

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