Drum-sander: Difference between revisions

From vector-space.org
Jump to navigation Jump to search
Line 22: Line 22:
[[File:Drum Bed Left.jpg]]
[[File:Drum Bed Left.jpg]]
[[File:Drum Bed Right.jpg]]
[[File:Drum Bed Right.jpg]]
Typically a coarse grain sandpaper is placed on the front drum and a finer grain sandpaper is placed on the rear drum so that both rough and fine finishing can occur in one pass, but different configurations are possible.


The adjustment knobs inside the top cover of the drum sander allow for a variety of front and rear drum configurations:
The adjustment knobs inside the top cover of the drum sander allow for a variety of front and rear drum configurations:


1.  When at "0" the rear and front drums are at the same height.
1.  When at "0" the rear and front drums are at the same height.  Both drums will remove the same amount of material.


2. To lower the rear drum the knobs are BOTH turned so that the guides read in the "+" or positive direction.  To raise the drum the knob are BOTH turned so the guideS read in the "-" or negative direction.  It may help to think of it as the "+" or positive number moving toward or "into" the material and the "-" or negative number moving away or "out of" the material.   
2. To lower the rear drum the knobs are BOTH turned so that the guides read in the "+" or positive direction.  To raise the drum the knob are BOTH turned so the guideS read in the "-" or negative direction.  It may help to think of it as the "+" or positive number moving toward or "into" the material and the "-" or negative number moving away or "out of" the material.   

Revision as of 18:04, 22 February 2021

Shop Area: Woodshop

Tool: Drum Sander

Requires in-person training: Yes

Procedure Number

UG 110-01, Rev. 1

Date

1/10/2021

GENERAL

There are 2 lock bolts on the bed adjustment bolts to keep the current setting. Please DO NOT change these settings. There are guides lines on the front showing where the belt should run so it's obvious if it starts to track to the right and curl under which will grind the right roller and bed. If this happens please STOP since the belt is just a large sheet of sandpaper and it will grind out the entire roller support and permanently damage the machine.

Drum Bed.jpg Drum Bed Left.jpg Drum Bed Right.jpg

Typically a coarse grain sandpaper is placed on the front drum and a finer grain sandpaper is placed on the rear drum so that both rough and fine finishing can occur in one pass, but different configurations are possible.

The adjustment knobs inside the top cover of the drum sander allow for a variety of front and rear drum configurations:

1. When at "0" the rear and front drums are at the same height. Both drums will remove the same amount of material.

2. To lower the rear drum the knobs are BOTH turned so that the guides read in the "+" or positive direction. To raise the drum the knob are BOTH turned so the guideS read in the "-" or negative direction. It may help to think of it as the "+" or positive number moving toward or "into" the material and the "-" or negative number moving away or "out of" the material.

3. These knobs should be adjusted so they are the same value though one could have a reason for tilting the rear drum so it's not parallel. This does not seem like a good idea though. The right spring on the adjustment knob sticks a bit so make sure that the value actually changes when you turn it. Just tap or flick the spring a bit.

4. The adjustment setting allows 4 positions for a variety of possible finishes:

A. "0" SETTING - The rear drum will be even with the front drum and will provide a double pass with the front and rear drums using both grits at the same height.

B. "-” NEGATIVE SETTING - The rear drum will be HIGHER than the front drum and will provide one pass with the front drum ONLY.

C. "+" POSITIVE) SETTING - The rear drum will be LOWER than the front drum and will allow 2 options:

a. If the bed depth (using the height crank on the right) is set so that the material engages the front drum, the front drum will remove material and the rear roller will remove more material (unlike A above which will remove the same amount of material with each drum).

b. If the bed depth (using the height crank on the right) is set LOWER so that the material DOES NOT engage the front drum, the front drum will be bypassed and ONLY the rear roller will remove material.

Drum Knob Left.jpg Drum Knob Right.jpg

SAFETY

REFERENCE

SuperMax 25x2 Manual

PROCEDURE

TROUBLESHOOTING

                                         END OF THE PROCEDURE