Folder with additional files on the Makita 2020, including:
-PDF instructions on how to upgrade cutter head
-Motor upgrade instructions
-Owners manual, exploded parts diagram, and parts list
-Sources for some replacement parts
[ Ссылка ]
00:00 Remove old cutter head
03:33 How to expand bearing with a light bulb
05:45 Install new bearings on new cutter head
09:21 Install cutter head on jointer
12:34 Jointer adjustments
15:13 Demonstration
I used to take the straight blades to a sharpening shop that returned them with cutting edge ground dead straight, but that shop went out of business in the 2009 recession, and I have not been able to find another shop that will grind straight. I tried sharpening the blades with a Makita 9820-2. Easy to get them sharp, but took considerable effort to get them straight to within 0.001 inch, which is just barely acceptable.
I really like using the jointer with Shelix head. I took the time to get the head perfectly parallel to the outfeed table. This required placing 0.001 inch brass shim-stock under two bolts as shown in video. Now it will stay parallel, no more fiddling with straight blades. Results are now very consistent. Snipe is almost non-existent because it can set the outfeed table very close to the cutting edge. Tear-out is rare, even when a board is planed against the grain, which is sometimes necessary when grain changes direction over length of board. Even though I wear ear protection, I can notice the machine is quieter and does not have that screaming sound that comes with straight blades. When a blade gets nicked, I just have to rotate one or two cutters and back to work with no further adjustments. Compare that with the heartbreak of nicked straight blades that require grinding, sharpening, and setting to get back in business. And one more thing: the Shelix head cutting length is 8.1 inch, which enables proper rabbiting which was not possible with the 8 inch straight blades, because they did not project beyond the table.
The Makita 2020 has a 120V 12A series motor. I have been running some 7 inch wide hard white maple over the jointer, taking 0.01 inch cuts, and the Makita motor does OK. I tried a 0.02 cut and had to go a little slower. My preferred cut has always been about 0.01 inch because it is fine enough for the final finish cut, yet large enough to go from rough board to flat board in a few passes - then I don't have to adjust the infeed table all the time.
After making the video, I installed a 1.5 HP induction motor. It is an improvement in power and keeps the cutter head RPM constant. Details on the motor upgrade can be found in the google folder at link above.
Not shown in the video is the method I use for waxing the cast iron tables and fence. I use the method shown in this video: [ Ссылка ]. Removes minor imperfections and lasts a year or more with normal use. To speed things up, I place the ScotchBrite 7448 pad under palm sander with sandpaper on it. If surface is really bad then I use ScotchBrite 7447 Maroon colour, but be sure to do entire top evenly to maintain flatness. To speed up waxing I place a lump of Minwax paste wax in the toe of a cotton sock and wipe that on surface to spread a thin even coat. When wax is hard dry, I place a clean cotton cloth under same sander. Three coats of wax is easy to apply this way.
