Re: Felder AD941 vs SCM Fs41ES

Mike D.

John:

I recently completed rotating the cutters on my AD951… quite straightforward and completed in a couple hours. Watch YouTube videos, have your tools ready and develop a flow to the process. I ran the first edge for several years of hardwoods; the time investment in the changeover was worthwhile.

Mike D.

Show quoted text

On Tuesday, April 1, 2025, 11:40, John Hinman via groups.io <jhinman1911@...> wrote:

PK’s observations make sense to me. My comparisons are much more limited, of course.

?

I bought a 15” Powermatic thicknesser with spiral head, after years of the cheapest import I could find. I was amazed at the finish quality - I ran a chunk of fir through it and the surface was like glass. My reaction was “why did I wait so long to get this!”

?

The PM motivated me to replace the head on my 8” Delta jointer with a Byrd head. That was disappointing. Lots of little scallops. Jointing slower was the solution, but it was not really what I expected.

?

I’m satisfied with the spiral head on my A951, but am not looking forward to rotating all of those cutters.

--

John Hinman
Boise ID
Kappa 450X and A941

--
Mike D.
Annapolis, MD
AD951; K700S; N4400

Re: Potentiall gotcha with the cheap Chinese DRO's

#140720

On Tue, Apr 1, 2025 at 10:57 AM, Rohit Kulshreshtha wrote:

LP-02

Thanks Rohit,

Indeed it looks like you can have multiple sections of tape. I'm not sure i want to be going through that procedure though each time i move from the first part of the tape to the second, so i'm glad it's working how i have it set up currently.

Regards,

Bryce

--

https://www.brycecomerwoodworks.com/
https://www.youtube.com/channel/UCHdrRaAZd_pOa7wwbdNPUEw

Re: Potentiall gotcha with the cheap Chinese DRO's

#140719

开云体育

Bryce, Glad you shared, because as I said, I would not have even tried.

Imran Malik

IAM Wood Creations

Show quoted text

On Apr 1, 2025, at 1:36?PM, Bryce Comer via groups.io <bryce@...> wrote:

?

Thanks Imran,

Yes the join in the tape was necessary due to how the table lifts up. I thought i could simply cut it but the two pieces together and it would work, but it turned out that it wasn't accurate. I used the edge sander to first carefully clean up one end, then reduce the length of the other part until it read accurately as it passed over the join. It worked the first time i did it, and i'm glad to say it worked the second time as well, so i'm confident enough to say it can be done. :)

Reards,

Bryce

--

https://www.brycecomerwoodworks.com/
https://www.youtube.com/channel/UCHdrRaAZd_pOa7wwbdNPUEw

Re: Saw blade for cross cut.

#140718

开云体育

Aaron,

You are right, I should have prefaced that statement with “In General”. It was a response I copied from a thread on my FB group and sometimes they are not perfectly phrased.

The issue with a cut with moving material or a moving blade is the tendency to self feed. Therefore, the recommendations are more for safety than performance or quality of cut. If the material is clamped and the feed rate can be controlled then the blade that is recommended for standard ripping and cross cutting could be used on a slider as well.

Generalities are well generalities. This is why I shared the Tenryu table so one can see the options from the manufacturer and the link to the short article to share the basics.

Imran Malik

IAM Wood Creations

Show quoted text

On Apr 1, 2025, at 1:45?PM, Aaron Inami via groups.io <ainami@...> wrote:

?

I don't think I necessarily agree with the statement "Sliders do work better with less hook" -- if you equate hook with meaning the same as rake angle.? I have tried in one instance using my 10 degree rake blade for ripping and it did not work well at all.? There was a lot of resistance for feed rate (required more pressure to push the wood through the saw) and I commonly got burn marks.? For ripping, you definitely need a higher rake angle on the blade tooth.

?

I guess think of it this way.? A higher rake angle (20 or 25 degree) will act more like a shovel to scoop larger sections of wood out when doing the cut.?? A shallower rake angle (5 or 10 degree) will act more like a grinder wheel than a shovel.? Obviously, this is an extreme analogy, but hopefully you get the concept.

?

I think the link to the Tenryu chart that Imram provided is actually a pretty good recommendation.? It shows a higher 20 or 25 degree rake angle for anything doing ripping.?? Then shallower 10 or 15 degree rake angle for crosscuts.? The only negative degree rake is for melomine and laminates.?? In other Tenryu charts, the only time I see a negative rake is on miter saw or radial arm saw (which are essentially cross-cut only machines) and, of course, metal cutting applications.

?

Based on the chart, my 10 degree blade is actually recommended for plywood only, but I found it works great for hardwoods as well (though, it still might not be as optimum as a 15 degree rake).

?

-Aaron Inami

Re: Saw blade for cross cut.

#140717

开云体育

I’m running a Ridge Carbide brand blade model, TS21248-A with 30mm pinholes. ?

It performs very similar to the characteristics that Aaron described as well. ?But It’s a +20 rake, and is HORRIBLE at ripping solid stock. ?I use it as a combination blade because I cut a lot of sheet stock, and it performs great with sheet ripping and cross cutting. ?It also performs well with solid stock cross cutting. ?But forget about it ripping the solid stuff. ?I switch to lower tooth count blade for this milling process. ?

Thx,

Wade

Show quoted text

On Apr 1, 2025, at 10:45 AM, Aaron Inami <ainami@...> wrote:

?
I don't think I necessarily agree with the statement "Sliders do work better with less hook" -- if you equate hook with meaning the same as rake angle.? I have tried in one instance using my 10 degree rake blade for ripping and it did not work well at all.? There was a lot of resistance for feed rate (required more pressure to push the wood through the saw) and I commonly got burn marks.? For ripping, you definitely need a higher rake angle on the blade tooth.

?

I guess think of it this way.? A higher rake angle (20 or 25 degree) will act more like a shovel to scoop larger sections of wood out when doing the cut.?? A shallower rake angle (5 or 10 degree) will act more like a grinder wheel than a shovel.? Obviously, this is an extreme analogy, but hopefully you get the concept.

?

I think the link to the Tenryu chart that Imram provided is actually a pretty good recommendation.? It shows a higher 20 or 25 degree rake angle for anything doing ripping.?? Then shallower 10 or 15 degree rake angle for crosscuts.? The only negative degree rake is for melomine and laminates.?? In other Tenryu charts, the only time I see a negative rake is on miter saw or radial arm saw (which are essentially cross-cut only machines) and, of course, metal cutting applications.

?

Based on the chart, my 10 degree blade is actually recommended for plywood only, but I found it works great for hardwoods as well (though, it still might not be as optimum as a 15 degree rake).

?

-Aaron Inami

Re: Potentiall gotcha with the cheap Chinese DRO's

#140716

When researching cost-effective DROs, I found the M503 and LP-02 models confusing—they appear to be nearly identical in size and design. I ended up purchasing a few LP-02 units, and based on the documentation, it seems that using multiple segments of tape is a valid use case for the LP-02 (or at least, that’s how I interpreted the manual—it’s not exactly Pulitzer-winning English, but I think that’s what it meant).

?

Re: F700Z fence plate alignment issue

#140714

Hi Dan,

I have noticed this too on the 230 fence of my CF741. When i do, i pull both fences off and clean everything with a blast of air and a bit of a wipe and it tends to end up spot on again. Hopefully this will solve your issue, otherwise it sounds like a bit of an issue, since i don't believe there is any adjustment.

Regards,

Bryce

--

https://www.brycecomerwoodworks.com/
https://www.youtube.com/channel/UCHdrRaAZd_pOa7wwbdNPUEw

Re: Saw blade for cross cut.

#140713

I don't think I necessarily agree with the statement "Sliders do work better with less hook" -- if you equate hook with meaning the same as rake angle.? I have tried in one instance using my 10 degree rake blade for ripping and it did not work well at all.? There was a lot of resistance for feed rate (required more pressure to push the wood through the saw) and I commonly got burn marks.? For ripping, you definitely need a higher rake angle on the blade tooth.

?

I guess think of it this way.? A higher rake angle (20 or 25 degree) will act more like a shovel to scoop larger sections of wood out when doing the cut.?? A shallower rake angle (5 or 10 degree) will act more like a grinder wheel than a shovel.? Obviously, this is an extreme analogy, but hopefully you get the concept.

?

I think the link to the Tenryu chart that Imram provided is actually a pretty good recommendation.? It shows a higher 20 or 25 degree rake angle for anything doing ripping.?? Then shallower 10 or 15 degree rake angle for crosscuts.? The only negative degree rake is for melomine and laminates.?? In other Tenryu charts, the only time I see a negative rake is on miter saw or radial arm saw (which are essentially cross-cut only machines) and, of course, metal cutting applications.

?

Based on the chart, my 10 degree blade is actually recommended for plywood only, but I found it works great for hardwoods as well (though, it still might not be as optimum as a 15 degree rake).

?

-Aaron Inami

Re: Potentiall gotcha with the cheap Chinese DRO's

#140712

Thanks Imran,

Yes the join in the tape was necessary due to how the table lifts up. I thought i could simply cut it but the two pieces together and it would work, but it turned out that it wasn't accurate. I used the edge sander to first carefully clean up one end, then reduce the length of the other part until it read accurately as it passed over the join. It worked the first time i did it, and i'm glad to say it worked the second time as well, so i'm confident enough to say it can be done. :)

Reards,

Bryce

--

https://www.brycecomerwoodworks.com/
https://www.youtube.com/channel/UCHdrRaAZd_pOa7wwbdNPUEw

Re: Saw blade for cross cut.

#140711
Edited

Im using forrest blades. Usa made. ?I like the duraline for xcut and the woodworker ii for ripping. You can ship them the blades to have them retoothed and or sharpened. They will also add the pin holes for sliders for blades that you have without them. 11$ each.?

Re: Felder AD941 vs SCM Fs41ES

#140710

Same here.

?

You are welcome to come to not as sunny Northern California?

Re: Felder AD941 vs SCM Fs41ES

#140709

Anyone can come on down to Sunny Southern California whenever!

?

The New saw (Still unknown to almost everyone!) Still a SECRET, should show up in the next two weeks or so!

?

PK

Re: Felder AD941 vs SCM Fs41ES

#140708

PK’s observations make sense to me. My comparisons are much more limited, of course.

?

I bought a 15” Powermatic thicknesser with spiral head, after years of the cheapest import I could find. I was amazed at the finish quality - I ran a chunk of fir through it and the surface was like glass. My reaction was “why did I wait so long to get this!”

?

The PM motivated me to replace the head on my 8” Delta jointer with a Byrd head. That was disappointing. Lots of little scallops. Jointing slower was the solution, but it was not really what I expected.

?

I’m satisfied with the spiral head on my A951, but am not looking forward to rotating all of those cutters.

--

John Hinman
Boise ID
Kappa 450X and A941

Re: Felder AD941 vs SCM Fs41ES

#140707

I have a Hammer a3-31 with the silent power spiral head. It is probably the only thing I really like about the machine. My boards come out glassy smooth and I can go right to higher grit finish sanding.

?

I have never used tera knives so I can't compare, but I personally don't feel like the spiral head leaves anything more to be desired from a finish standpoint. Whenever I eventually replace the hammer with a better machine, I will be sticking to a spiral head.

?

--

?

Larry Long Neck

Just a noob trying to learn the ways of wood

> Making youtube videos now!
??? -

Re: Felder AD941 vs SCM Fs41ES

#140706

PK,

?

it only means we need to do an experiment. Run a board on my machine with the Tersa on one side and you’ll run the other side on the Xylent for comparison :)

Re: Felder AD941 vs SCM Fs41ES

#140705

I have stayed out of this conversation (maybe I still should!) but here are my observations:

?

Spiral vs Tersa may not be as cut and dry as is being stated.

?

I have had:

Straight knives - Lunchbox planer and a 20" Chinesium planer
Byrd - Delta X5 15" planer
Silent Power - Felder AD-941
Tersa - HSS - 2 different versions - Griggio PSA-520
Xylent - SCM L'invincible FS 7

I would agree with everyone around the Byrd version of the spiral head.? I found it to be acceptable, but not impressive with its finish.? Some of this may be tied to the quality and design of the machine.? Vibration will not help in the production of a smooth surface IMHO.

?

The Silent Power head was far better than the Byrd head.? Smoother and on the slower speed (AD-941 has 2 speeds) it was pretty glassy.? It was only a 4hp machine, so I assume a larger cut might have affected the quality.?

?

The Tersa machine was a 9hp 3ph machine with 3 separate motors and should have made for the best possibility of a smooth surface.? This was a Griggio that was over 1600 pounds with a massive casting, two output feed rollers and variable speed feed rate.? The surface was very good but I would not say it was better than the Silent Power cutter block results.? The machine was a beast for sure and the knives were easy to change- unlock the head, rotate to index it to the whole in the casting, pop the wedges and slide it out.

?

The Xylent head on my SCM L'invincible FS 7 is similar to the Silent Power on the AD-941.? The difference is that I now have four speeds.? On the slowest speed, I am not sure you need to sand the wood.? Under an inspection lamp with mahogany you can only see the grain with no machine marks at all!? ?I have had several people to the shop that would agree with me and all of them were blown away at the surface with zero snipe.? This is the heaviest machine by far at 2350 pounds and it is a 15hp machine with almost no sheet steel.? There is very little vibration an very little compromise in design.

?

Comparing a machine that has a Byrd, or converted to Byrd (there are other like brands that look similar as a 'basic' insert cutter) to a machine that is of superior design and construction would not be an apples for apples comparison IMHO.? Moving from that style, or a straight cutter, to Tersa on a better machine would be light years better.

?

Am I biased because of what I have, maybe, but I have owned all five types in different levels of quality so I feel like I have a good basis to judge them all.

?

To really judge the two options would require two exact machines, one with Tersa and one with a Silent Power or Xylent or Xplane to truly compare them.? I have yet to see the results of THAT test.? I only hear word of mouth.? I am a data guy, so it is hard for me to believe without experiencing the actual results.

?

As far as the chips that come off the planer, agreed that the index cutterheads have smaller chips.

?

PK?

?

Re: Felder AD941 vs SCM Fs41ES

#140704

I have packed the filter for my cyclone when the depth of fill indicator fails. The pressure meter goes off the chart when that happens.

?

I periodically take my filter off and clean it on my patio. So far the neighbors have not complained about the dust cloud.

--

John Hinman
Boise ID
Kappa 450X and A941

Re: Saw blade for cross cut.

#140703

开云体育

Hi Chris,

Hook or rake are used interchangeably. I am not a blade design level expert rather a user who reads and thinks a lot. I have only had blades with negative hook for non-ferrous metals. Here is a short read with more detail: