Router Plane

Monday, January 12, 2026

Courtyard Gate – #7 Making the Latillas & a Jig – Part 1

The upper part of each gate has three latillas installed in the opening.  The left drawing shows them highlighted.  The right drawing is an exploded X-Ray view that shows the pins that will hold the latillas in place.  In the original gate these were wooden dowls and they rotted off enough so that one completely fell out.  To prevent this from happening with these gates a ¼” aluminum dowel (red arrow) will be used. 

I started by laying out the pin hole locations (top photo) and marked them all at once to make sure they all lined up.  That’s followed up by going to the drill press and setting its fence so the pins would all be centered (bottom photos) and drilling them.

To cut the pins I made a quick clamping bracket and mounted it in the bench vice (top photo).  After pushing the rod through the hole and measuring it a clamp holds it tight in place.  Next a jigsaw with a metal cutting blade is used to cut the dowel free.   Once cut the ends are somewhat ragged so they get mounted in the lathe (bottom photo) where a file is used to cleanup the end and add a small bevel to ease the entry into the drilled hole.

The latillas are next.  The blanks have been set aside and when checked there were no problems, everything is still straight, flat and true.   The blanks are made from four layers and because the layers are different thickness the glued-up blanks vary in total thickness but the width is the same albeit oversize and wider than they are thick.  Passing each of them through the table saw got them down to the same required width and square.  

Because I want the center glue joint centered on the blank getting them to the same thickness would be time consuming since all the amounts cut off would be different because of the layers different thicknesses so a roundabout method is used.  It starts by locating the center along the width which in the photo is left-to-right dimension.  Rather than try and measure the exact center I get close, mark from both sides then split the difference.  The jeweler’s magnifying headset helps me hit the side-to-side center.  A closer view is shown in the inset.  Top to bottom dimension across the layers is what varies.  I get around that by using the glue line as my center line then drawing a circle a bit larger than the size of the latilla’s blank with a compass. 

To make the initial turning a bit easier the four corners of all the latilla blanks get cut off so I end up with an octagon.  The corners are cut off using the bandsaw set at 45 degrees.  To set the amount to cut off the blank is placed on the bandsaw table and the fence is adjusted so the blade is close to the circle on the blank’s end.  The left photo shows what I mean and the right photo shows the last corner cut off.  Since I don’t need to hit the line exactly if its close that’s good enough for this operation which means the fence does not have to be moved very often.  The bottom photo is of all six latilla blanks ready to be turned.

The top photo shows the octagonal blank set between centers ready to be turned round and the bottom photo shows the finished cylinder turned to a constant required diameter of 1 ½”.

Thinking through the process needed to make the latillas from the cylinder I saw a problem with the machining process.  When I did the test piece there was no need to drill the holes for the aluminum mounting pins.  However, the actual pieces will need to have those holes drilled while the blank is still a cylinder so they are centered in the blank.  That has to be done before the freehand shaping since I can’t hold an irregular shape in the lathe to drill the hole and with the holes I can’t mount it between centers to do the freehand shaping.  The end result is a detour to make a specialty jig to hold the blank after the holes are drilled while the freehand shaping is done.  The jig starts out with a wood block that gets bandsawn into a rough cylinder.

Next a cylindrical blank gets turned smooth and to size between centers.

It’s then removed from the lathe and the spur drive swapped out to a 4-jaw chuck so the blank can be clamped in place.  In the top photo a small inset is drilled for clearance when the jig is installed on a live center.  In the bottom photo a hole has been drilled that gets threaded so the jig can be screwed onto the live center. 

Here’s the tap used to cut the threads and the finished threaded hole.

The center finder is put into the drill chuck and the center of the jig gets marked for drilling the ¼” hole the aluminum dowel will go in.

This is the completed jig screwed on to the live center (red arrow) with the aluminum dowel inserted ready to be used.

To drill the holes in the latillas the drive center is removed and the 4-jaw chuck is installed.  The cylindrical latilla blank is clamped in the 4-jaw chuck with a second live center in the tail stock to make sure the cylinder is aligned correctly.  This is all done in the top photo.  Next the live center in the tail stock gets removed and the ¼” drill bit in a drill chuck gets mounted in the tail stock (bottom photo) so the hole can get drilled.

 Next Up – Finishing the Latillas & Starting the Infill Panels

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