Author Topic: DW735 with shelix  (Read 1163 times)

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Offline hamsey

  • Posts: 27
DW735 with shelix
« on: December 06, 2018, 11:49 AM »
Purchased a DW735 planer a couple of months ago and need to replace the stock HSS blades. Contemplating installing a shelix head until I saw this video (2 minute mark): I have never seen any mention about this issue before.  Could this be an issue with his setup? Do others that have this setup have this issue? No sure about the upgrade at this moment because of the added work to get the wood flat. Certainly, not going to be hand planing to get it completely flat.

Thanks, Norm

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Offline Gregor

  • Posts: 1084
Re: DW735 with shelix
« Reply #1 on: December 06, 2018, 12:12 PM »
Could be caused by some of the cutting plates not seated 100% in place - but as the guy said: quick to clean up with a handplane or a sander, with overall better quality than one blade.

Sadly the DW735 is NICE (Not available In Central Europe).

Online Cheese

  • Posts: 5171
Re: DW735 with shelix
« Reply #2 on: December 06, 2018, 12:22 PM »
Yes the slight ripple has been talked about before. You just need to do some light sanding. I measured the depth of the ripple on some Ambrosia maple and it averaged .0010" to .0015".

http://festoolownersgroup.com/other-tools-accessories/dw735-planer-and-byrd-shelix-head-cutter/90/

I still prefer the Shelix version over the standard straight blades.




Offline Benito

  • Posts: 5
Re: DW735 with shelix
« Reply #3 on: December 07, 2018, 05:29 PM »
I installed a shelix cutter head on my DeWalt 733 planer a few years back. It can leave some undulations or very small ridges. It's very easy to clean up with a handplane or sander. In my view, the lack of tear-out and longer life of the cutting edges easily outweighs some of the superficial marks left on the surface.

Offline kevinculle

  • Posts: 237
Re: DW735 with shelix
« Reply #4 on: December 08, 2018, 07:59 AM »
As noted a Shelix head (I have them on my DW735 and Jet jointer) leaves a subtly scalloped surface that can be seen if a freshly faced workpiece is held at a steep angel to a bright overhead light.  In my experience it cleans up to dead flat with about 4 passes of a good RO sander and 120 grit abrasive and much more quickly than the surface left by straight knives in typical (not perfectly just sharpened) working conditions.

Offline grbmds

  • Posts: 1822
Re: DW735 with shelix
« Reply #5 on: December 08, 2018, 08:58 AM »
I have jointer with a similar cutterhead and there are very slight "scallops" on the face or edge being jointer. I have found that the slower the wood passes through the lesser the ridges (obviously can't really control that with a planer). Also, I've found that the taking less off on each pass lessens them to some degree. Regardless, a hand plane or thickness sander is NOT needed to eliminate them. They come off with sanding during the sanding and finishing process.
Randy

Offline Michael Kellough

  • Posts: 3614
Re: DW735 with shelix
« Reply #6 on: December 08, 2018, 09:36 AM »
I have jointer with a similar cutterhead and there are very slight "scallops" on the face or edge being jointer. I have found that the slower the wood passes through the lesser the ridges (obviously can't really control that with a planer). Also, I've found that the taking less off on each pass lessens them to some degree. Regardless, a hand plane or thickness sander is NOT needed to eliminate them. They come off with sanding during the sanding and finishing process.

Decades ago, when Makita delivered the first lunchbox planer to North America, one of the early double page ad buyers in the new WWing magazine (Fine Woodworking) offered a smaller sprocket so the wood would pass through the planer more slowly, and produce finer results than you could get from the most expensive planer. [Except for the fixed knife machine (also Makita) that shoved the wood past the blade producing zero scallops.

Stretched that out hoping to remember the name of the seller. Seems like the name Don is relevant? The showroom/warehouse was is the lower Chelsea neighborhood of Manhattan.

Online Cheese

  • Posts: 5171
Re: DW735 with shelix
« Reply #7 on: December 08, 2018, 10:54 AM »
As noted a Shelix head (I have them on my DW735 and Jet jointer) leaves a subtly scalloped surface that can be seen if a freshly faced workpiece is held at a steep angel to a bright overhead light. 

Here's another photo I took when I first converted my Dewalt. Again, Ambrosia maple.


Offline travisj

  • Posts: 233
Re: DW735 with shelix
« Reply #8 on: December 08, 2018, 03:49 PM »
It’s the nature of the beast.  Be it straight knives or a segmented cutter, marks will be left on the surface.  I remember my dad’s old Craftsman Jointer would leave ridges.  So would his DeWalt planer (first model).  My segmented head on my Hammer J/P leaves slight scallops.  When I get close to the desired final dimension, I have found if I make fine cuts (1/4mm or less).  They are not as noticeable.  When jointing, the slower the feed rate, the less noticeable.  Regardless, they clean up quick with whatever method you prefer (sanding, scraping, or hand plane).


Sent from my iPhone using Tapatalk

Online Cheese

  • Posts: 5171
Re: DW735 with shelix
« Reply #9 on: December 09, 2018, 12:29 AM »
Another potential help with this issue is to just run the board through the planer several times without changing the setting once you’ve arrived at the desired material thickness. If you change the direction of the board or skew it a few degrees, it will remove material in different locations which may eliminate some of the surface inconsistencies.

I've done that in the past when the straight knives got dinged and they left a continuous nib that was proud of the surface.
« Last Edit: December 09, 2018, 09:26 AM by Cheese »