#31
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I seem to recall someone using a bolt-mount pipe flange.
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#32
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I am not sure how I am to feel about this.
__________________
Fred |
#33
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Metal donut looks like toilet water supply wall cover:
[IMG][/IMG] StewMac's TrueChannel uses a nylon donut: [IMG][/IMG] You would have to buy the entire carriage for $116. You could lathe-turn one out of nylon or Delrin. |
#34
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Does the donut have to have a beveled edge? Would a simple nylon washer work?
The way I see it, the way this differs from a simple edge router guide attachment is that has a wider surface (the dumbbell) to true against the side of the guitar and a smaller surface (the donut) to simply keep the depth of the cut consistent as the surface being cut moves along. I’m guessing the focus is to maintain even pressure on the edge guide (the dumbbell) to keep things square?As long as the plunge base on the router stays tight the donut will keep the bit from cutting downward any further than you set it?
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(2006) Larrivee OM-03R, (2009) Martin D-16GT, (1998) Fender Am Std Ash Stratocaster, (2013) McKnight McUke, (1989) Kramer Striker ST600, a couple of DIY builds (2013, 2023) |
#35
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There is no bevel, but the contact width is only about 1/8" wide.
This is the Martin factory jig. (I ran out of pixels with enlargement.) [IMG][/IMG] They have a bit organizer board with about 30+ bits. Side and top ledges are cut in the same pass. The vertical guide plate may be beveled. But I don't think it is adjusted from back to top routing. |
#36
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Took me a second, but I got it
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#37
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Quote:
__________________
(2006) Larrivee OM-03R, (2009) Martin D-16GT, (1998) Fender Am Std Ash Stratocaster, (2013) McKnight McUke, (1989) Kramer Striker ST600, a couple of DIY builds (2013, 2023) |
#38
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I did a test run the other day, then made some modifications today:
I modified the donut and added a collar. I swapped out the old dumbbell for a barrel bolt with steel spacers. A 1/4" threaded rod now passes up from the base of the arm and is held tight by a clamping knob. The donut is a nylon furniture slider with a soft collar with a 1" diameter. It had a convenient pilot hole that I enlarged with a 1" brad bit on my drill press. I like that it had some convenient mounting screws to hold it all in place. My test run demonstrated that the vibration from the laminate trimmer will cause any loose parts to rattle. I was able to get a serviceable ledge on both a test 2x4 and an MDF bending form (that never gets used) but after a few passes the rods that hold the adjustable portion true worked loose. I need to get another clamping knob. The biggest problem is that the laminate trimmer does not extend any further. It barely extends past the donut. Time to upgrade to a better router. SMH.
__________________
(2006) Larrivee OM-03R, (2009) Martin D-16GT, (1998) Fender Am Std Ash Stratocaster, (2013) McKnight McUke, (1989) Kramer Striker ST600, a couple of DIY builds (2013, 2023) |
#39
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Recess the donut a little.
__________________
Fred |
#40
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I modified the trimmer mount. There was a protrusion inside the carriage assembly designed for I have no idea. I broke out my Dremel, installed the sanding wheel and ground it off. Now the trimmer descends further down and I can now route deep enough to do a binding strip.
My first test on a square and straight-edged blank showed good results. Getting used to a curved edge with a radius on the top will take more practice.
__________________
(2006) Larrivee OM-03R, (2009) Martin D-16GT, (1998) Fender Am Std Ash Stratocaster, (2013) McKnight McUke, (1989) Kramer Striker ST600, a couple of DIY builds (2013, 2023) |
#41
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I finally put it to use on my latest build and the results were pretty good. There were no sudden “oopsies” and I made sure to rotate the body in the proper direction to prevent tear out. I even went so far to use a big piece of chalk to mark the start and finish lines and put big arrows to indicate the proper direction. Now I need to go over some spots with a file but that’s par for the course from what I understand.
__________________
(2006) Larrivee OM-03R, (2009) Martin D-16GT, (1998) Fender Am Std Ash Stratocaster, (2013) McKnight McUke, (1989) Kramer Striker ST600, a couple of DIY builds (2013, 2023) |
#42
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Neil what did you end up using for a doughnut?
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#43
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A felt furniture boot with a plastic rim with a 3” outer diameter and a rubber ring with a 1” inner diameter. I mounted it on a piece of scrap wood using the set screws and drilled out the middle with a 1” spade bit on my bench top drill press. It ended up being just shape I needed and the rubber ring acts as the perfect stop.
__________________
(2006) Larrivee OM-03R, (2009) Martin D-16GT, (1998) Fender Am Std Ash Stratocaster, (2013) McKnight McUke, (1989) Kramer Striker ST600, a couple of DIY builds (2013, 2023) |
#44
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Quote:
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#45
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What are you guys using for bits?
__________________
Fred |