Cutting (Jointer and Planer)
Symptom |
|
| Possible Cause | Possible Solution | ||||||
|
|
|
|
|
| |||||
Excessive | snipe | 1. | Outfeed table is set too low. | 1. | Align outfeed table with cutterhead knife at top dead | |||||
(gouge |
| in the | end |
|
|
| center (Page 18). | |||
of the board that is | 2. | Operator pushing down on trailing end of | 2. | Reduce/eliminate downward pressure on trailing end | ||||||
uneven with the rest |
| workpiece. |
| of workpiece. | ||||||
of the cut). |
|
|
|
| ||||||
|
| 3. | Workpiece is not supported as it leaves the | 3. | Support the workpiece as it leaves the outfeed end | |||||
|
|
|
|
| ||||||
|
|
|
|
|
| planer. |
| of the planer. | ||
|
|
|
|
|
| |||||
Workpiece | stops/ | 1. | Taking too heavy of a cut. | 1. | Take a lighter cut. | |||||
slows in the middle | 2. | Table not parallel with head casting. | 2. | Adjust the table so it is parallel to the head casting | ||||||
of the cut. |
|
|
|
|
| (Page 50). |
| |||
|
|
|
|
|
|
|
|
| ||
|
|
|
|
| 3. | Pitch and glue build up on planer compo- | 3. | Clean the internal cutterhead components with a | ||
|
|
|
|
|
| nents. |
| pitch/resin dissolving solvent. | ||
|
|
|
|
| ||||||
Chipping (consistent | 1. | Knots or conflicting grain direction in wood. | 1. | Inspect workpiece for knots and grain direction; only | ||||||
pattern). |
|
|
|
|
|
| use clean stock. | |||
|
|
|
|
| 2. | Nicked or chipped knife or carbide insert. | 2. | Replace the knife or rotate/replace affected insert | ||
|
|
|
|
|
|
|
| (Page 43 or 45). | ||
|
|
|
|
| 3. | Taking too deep of a cut. | 3. | Take a smaller depth of cut. (Always reduce cutting | ||
|
|
|
|
|
|
|
| depth when surface planing or working with hard | ||
|
|
|
|
|
|
|
| woods.) |
| |
|
|
|
|
|
|
| ||||
Fuzzy grain. |
|
| 1. | Wood may have high moisture content or | 1. | Check moisture content and allow to dry if moisture | ||||
|
|
|
|
|
| surface wetness. |
| is too high. |
| |
|
|
|
|
| 2. | Dull knives or inserts. | 2. | Rotate/replace the knives or inserts (Page 43 or | ||
|
|
|
|
|
|
|
| 45). |
| |
|
|
|
|
|
| |||||
Long lines or ridges | 1. | Nicked or chipped knives or inserts(s). | 1. | Replace or | offset knives or rotate/replace inserts | |||||
that run | along | the |
|
|
| (Page 43 or | 45). | |||
length of the board |
|
|
|
|
| |||||
Uneven | knife | or | 1. | Knives not adjusted at even heights in the | 1. | Adjust the knives so they are set up evenly in the | ||||
insert | marks, wavy |
| cutterhead. |
| cutterhead (Page 43). | |||||
surface, | or | chatter | 2. | Carbide inserts not installed evenly. | 2. | Make sure carbide inserts do not have debris under | ||||
marks | across | the |
|
|
| them; make sure inserts are torqued down evenly. | ||||
face of the board. |
|
|
| |||||||
3. | Worn cutterhead bearings. | 3. | Replace cutterhead bearings. | |||||||
|
|
|
|
| ||||||
|
|
|
|
|
| |||||
Glossy | surface. | 1. | Knives or carbide inserts are dull. | 1. | Rotate/replace the knives or inserts (Page 43 or | |||||
(Planer) |
|
|
|
|
|
| 45). |
| ||
|
|
|
|
| 2. | Cutting depth too shallow. | 2. | Increase the depth of cut. | ||
|
|
|
|
|
| |||||
Chip Marks | (incon- | 1. | Chips aren't being properly expelled from | 1. | Use a dust collection system | |||||
sistent | pattern). |
| the cutterhead. |
|
|
| ||||
(Planer) |
|
|
|
|
|
|
|
| ||
Board edge is con- | 1. | Board not held with even pressure on infeed | 1. | Hold board with even pressure as it moves over the | ||||||
cave or convex after |
| and outfeed table during cut. |
| cutterhead. |
| |||||
jointing. (Jointer) | 2. | Board started too uneven. | 2. | Take partial cuts to remove the extreme high spots | ||||||
|
|
|
|
| ||||||
|
|
|
|
|
|
|
| before doing a full pass. | ||
|
|
|
|
| 3. | Board has excessive bow or twist along its | 3. | Surface plane one face so there is a good surface to | ||
|
|
|
|
|
| length. |
| position against the fence. | ||
|
|
|
|
| 4. | Insufficient number of passes. | 4. | It may take 3 to 5 passes to achieve a perfect edge, | ||
|
|
|
|
|
|
|
| depending on starting condition of board and depth | ||
|
|
|
|
|
|
|
| of cut. |
| |
|
|
|
|
|
|
|
|
|
|
G0633/G0634 Jointer/Planer Combo Machine |