Surfacing bits

Surfacing bits

Postby dah79 » Wed May 03, 2017 3:23 am

So what is everyone using for tooling for surfacing spoilboards and just general wood products? I am using a 2.2kw spindle that can accept up to a 1/2" shank bit. These are pretty pricey, don't want to get more than I need.

Thanks.
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Re: Surfacing bits

Postby Adrian » Wed May 03, 2017 6:14 am

I've used the Onsrud 91-000 for years to surface my MDF spoilboard as well as all sorts of hardwood and softwood. I've tried others but I always go back to that bit.
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Re: Surfacing bits

Postby edwan » Wed May 03, 2017 6:52 am

I use one of the surfacing bits by Amana (Toolstoday in the U.S.) They have rotatable/replaceable carbide inserts. I haven't needed to rotate the insert even once in over a year.
Sizes from 1" to 4" diameters. The bigger the pricier!
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Re: Surfacing bits

Postby dah79 » Wed May 03, 2017 12:09 pm

Thanks Adrian, that seems reasonable.

Edwan, which one do you use?
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Re: Surfacing bits

Postby scottp55 » Wed May 03, 2017 1:09 pm

Whiteside #1304 mortise here for 3 years;
https://www.amazon.com/Whiteside-Router-Bits-1304-Diameter/dp/B000K2G1QK/ref=sr_1_1?s=hi&ie=UTF8&qid=1406937893&sr=1-1&keywords=whiteside+1304
One for MDF, and one for all hardwoods from Cherry to Bloodwood(and in between)for surfacing/dimensioning.
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Re: Surfacing bits

Postby dah79 » Wed May 03, 2017 1:29 pm

Like that one too, Scott. Like the added depth. What kind of feeds and speeds and stepover do you use when surfacing?
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Re: Surfacing bits

Postby mtylerfl » Wed May 03, 2017 2:00 pm

I use the same bit as Adrian - the Onsrud 91-000
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Re: Surfacing bits

Postby scottp55 » Wed May 03, 2017 2:10 pm

For MDF spoilboard, I rarely need to cut very much more than .01-.02", so 180IPM/16K/40%
For hardwoods best results are .02-.08 pass for roughing, and a final .02" finish pass at 120-180IPM/14-16K/40% Offset/conventional works best.
For wicked warped stuff, I set up a toolpath 180IPM pass at .05" pass, and then Nudge Z down .03-.05" and rerun the toolpath until final .02" pass cleans it all up.
I Have found them as cheap as $18.
Only 1hp spindle here, so I always use a long ramp to ease it in for the initial cut on S2S.
Attachments
Curly Maple 4inch width Linseed Beeswax endgrain.jpg
M side 1 first pass.jpg
Middle of cheap MDF 50 50 laquer added.jpg
puck6.jpg
wet Walnut branch .05inch passes 3IPS 14-15K.jpg
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Re: Surfacing bits

Postby Leo » Wed May 03, 2017 5:10 pm

I use a 1-1/4 CMT or Freud bit, that I order from Amazon.

I don't use a spoil board anymore. I use 3/16 Pressed hardboard strips as needed and throw in the wood stove as they get used up.
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Re: Surfacing bits

Postby dah79 » Wed May 03, 2017 5:31 pm

Interesting how most of you are using the less expensive tools. I had been looking at Amana ones mentioned above, but was cringing at spending that much money. Other than the replaceable carbides and larger diameter, is there really any advantage to those? I only have a 4x4 machine, so I can afford to walk away for awhile while surfacing if I use a smaller/less expensive tool.

Thanks for all the replies.
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Re: Surfacing bits

Postby kp91 » Wed May 03, 2017 11:31 pm

Doug
1 John 1:9
Fredericksburg, VA
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Re: Surfacing bits

Postby highpockets » Thu May 04, 2017 12:19 am

Magnate 2706 Surface Planing ( Bottom Cleaning ) Router Bit - 2" Cutting Diameter got it off Amazon for $39
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Re: Surfacing bits

Postby dah79 » Thu May 04, 2017 1:57 am

John,
What size spindle/router are you running that on?
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Re: Surfacing bits

Postby dah79 » Thu May 04, 2017 12:26 pm

Thanks for all the replies. I decided to go with the Onsrud 91-000.

Can you guys with these, give me some general feeds & speeds to get started?

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Re: Surfacing bits

Postby mtylerfl » Thu May 04, 2017 4:44 pm

Only shaving off 0.02" to 0.03" at a time, I run mine at:

10,000 to 12,000 rpm
5 inches per second Feed (300 inches per minute)
3 inches per second Plunge (180 inches per minute)

Depending on your machine, you may want to go 3 inches per second Feed, 2 inches per second Plunge.

Oh, the pocket is set for Offset, Conventional with a 20% stepover, 2" Ramp Plunge Move.
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