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Thread: Trim router bit
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29th May 2023, 11:12 PM #1GOLD MEMBER
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Trim router bit
Team,
I have a 1/4” trim router and am looking for a bit that is smaller in diameter to the bits pictured below. I can’t find any smaller than than the 12.7mm.
IMG_8043.jpg
I have however found a 9.52mm double bearing tracing bit, but I need to be able to cut into endgrain and not just trim.
Does anyone know of any on the market?
would I be able to sleeve a regular 8mm straight flute so the sleeve sits against a template acting as the bearing. Could this work?
i know where the stresses would be on the router but for the double bearing but don’t understand why they could make it at 9.5 but the one pictured 12.7.
eager to hear thoughts.
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29th May 2023 11:12 PM # ADSGoogle Adsense Advertisement
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29th May 2023, 11:34 PM #2GOLD MEMBER
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Hi Richard,
Carbitool have a 9.5mm (3/8) version T8212B.
2 Flute - Inverted Flush Trimming Bit with Ball Bearing Guide - Carbide Tipped - Carbitool
They will post.
Also available at Total Tools: https://www.totaltools.com.au/126288...ipped-t-8212-b
Hope you're well.
Best regards,
Brian
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30th May 2023, 12:17 AM #3GOLD MEMBER
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Hey Brian, like wise it’s been a long time., I’ve been around and as things have been flying around if you catch my drift. Slowly making a come back, a bit of turning here a chopping board there, doing everything I can to avoid the mother-in-laws resin cast bowl after its unceremonious dismount. And my daughters walnut and maple jewellery set. She may get it Christmas this year not 2019 as designated. She might appreciate now though as she’s a bit older.
wow, they don’t miss you with those prices, and thank you, I hope you are well also.
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30th May 2023, 09:50 AM #4
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30th May 2023, 12:06 PM #5GOLD MEMBER
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Hi Richard,
i’m following your resin bowl thread with something akin to awe. Way beyond my pay grade!!
keep well,
Brian
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30th May 2023, 03:48 PM #6GOLD MEMBER
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30th May 2023, 03:53 PM #7GOLD MEMBER
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30th May 2023, 04:10 PM #8
my apologies for quoting from the Lee Valley website, but
Amana 1/4" Compression CNC Router Bit - Lee Valley Tools is a 1/4" up and down cut spiral bit which might to what you are looking for.
these bits come in small diameters. Small Straight Bits - Lee Valley Tools
or these Template Bits - Lee Valley Tools
this one is 1/4" diameter with a 1/4" shank and a bottom bearing Laminate Flush Trimming Bits - Lee Valley Tools
are any suitable?regards from Alberta, Canada
ian
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30th May 2023, 04:32 PM #9
Just looked in a copy of Carb-i-tool's router bit catalogue
Carb-i-tool do a template bit TGAS 12, 3/8" in diameter (or is it 9.5 mm?), 1/4" shank, top bearing, cutting depth 13mm, overall length 63 mm
Carb-i-tool also do a
3/8" double spiral (solid Carbide) with a double bearing on the bottom.
1/4" flush trimming bit, bottom bearing,
.
so some choicesregards from Alberta, Canada
ian
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30th May 2023, 04:37 PM #10
Fumbler
I am not sure such a beast exists. It is easy to find a slim, flush trim bit with a bottom bearing, but not, as you have found out, with a top bearing. I think it is a manufacturing issue. The top bearing has to slide over the shank, which is either 6mm or ¼" (not the same thing) after the bit has been formed and by the time the bearing is added you have a diameter approaching 12mm.
Like you, I did go looking. I have slim trim bits with the bottom bearing, but all the top bearing bits are 12.7mm or larger.
Regards
PaulBushmiller;
"Power tends to corrupt. Absolute power corrupts, absolutely!"
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30th May 2023, 05:00 PM #11GOLD MEMBER
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Ian, thanks but no, I have all of these, but the compression bit might melt the acrylic template as it runs up against it.
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30th May 2023, 05:07 PM #12GOLD MEMBER
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Paul, thanks. Yep, 9.5(3/8) is the smallest I have found.
I have an idea but not sure how it will pan out.
They say necessity is the mother of invention.
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30th May 2023, 09:30 PM #13Mobyturns
In An Instant Your Life CanChange Forever
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30th May 2023, 10:06 PM #14
Would any of these help?
Carbatec Router Template Guide Set – 9pce Solid Brass Guides | Carbatec
JimSometimes in the daily challenges that life gives us, we miss what is really important...
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31st May 2023, 01:19 AM #15
Kevjed,Fumbler,
again apologies for referencing the Lee Valley web site
along with their 1/4" shank, 1/4" dia, 3/4" cutting bit / with a bottom bearing, Lee Valley also make a table in which your trim router could be mounted inverted
The
table insert is available separately
table top and stand can be purchased as a unit, or separately as individual components -- top, stand, fence
the top is designed to allow your trim router to be used inverted with a template guide on top of the piece being machined
Would a home made version of this table work for you?regards from Alberta, Canada
ian
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