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Delta DC380 alignment

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Forum topic by Golfisher posted 01-07-2019 03:59 AM 430 views 0 times favorited 17 replies Add to Favorites Watch
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Golfisher

25 posts in 594 days


01-07-2019 03:59 AM

Recently acquired this planer and took apart to clean and change knives etc. While I have apart, anyone know where to get a good dial indicator capable of checking all the various alignment tolerances?
Thanks
Jeff

-- Golfisher, NY


17 replies so far

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Richard Lee

219 posts in 1039 days


#1 posted 01-07-2019 02:08 PM

View CaptainKlutz's profile

CaptainKlutz

805 posts in 1759 days


#2 posted 01-08-2019 09:27 AM

http://lumberjocks.com/topics/302399

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

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Golfisher

25 posts in 594 days


#3 posted 01-14-2019 02:55 PM

Ok now have the tool and this is what I found:
Infeed roller is 0.007” above table on left side and 0.001 on right side.
Outfeed roller is 0.004” above bed on left side and 0.009 on right.
blade is within 0.001” from one side to other.
Infeed roller varies 0.030” from one side to other.

Started reading about adjusting rollers and seems complicated so wanted to check in and see if you had any advice first?

-- Golfisher, NY

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CaptainKlutz

805 posts in 1759 days


#4 posted 01-14-2019 03:53 PM



Started reading about adjusting rollers and seems complicated so wanted to check in and see if you had any advice first?
- Golfisher

All planer manuals for 15” look a-alike planers suggest similar ‘default’ settings. Suggest you start there, then adjust as needed. IMHO – Height settings are project and lumber driven.

- Type of lumber most often run can dictate use of different height settings. Examples:

in table rollers:
: Skip planning rough cut softwood in-feed will slip less with higher position of table in-feed roller. Too high and hardwood can be hard to start feeding.
: If surface roughness of incoming lumber is good (I.E. skip planned), can use 0.0—0.001 height on table in-feed roller. Just be sure to keep the table clean and waxed, to reduce friction. Keeping the in table out feed roller at higher factory setting reduces snip when using lowered in-feed height.

Feed roller spring pressure:
: Like in table rollers, you can reduce spring pressure when using only skip planned lumber. This can make initial board feed easier. Note that if you reduce too much, can increase snip and rough boards slip more often.

- One common complaint for 15” machines with serrated in-feed roller is marking on light cuts as discussed in thread posted above.

All of these settings are balancing act. If you get too far from mfg default for one roller, and don’t change rest to align with new configuration, then you get feeding, snip, and/or marking issues that can be ‘no-fun’ to solve.

Best luck.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

View Fred Hargis's profile

Fred Hargis

5296 posts in 2758 days


#5 posted 01-14-2019 04:41 PM

I have a DC380 (22-680) and checked the manual. It says the infeed/outfeed rollers are factory set so they are .040” below the cutting circle ( the lowest point of the knives). I think if you get them parallel to the base, and then start with the .040” (assuming the knives are properly set) you will be very, very close to what you want.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Golfisher

25 posts in 594 days


#6 posted 01-14-2019 06:10 PM

reviewing this further what I said tolerances for infeed and outfeed rollers I really menat to say infeed and outfeed table rollers. serated infeed roller is what varies by 0.030 inches. I did not measure outfeed roller yet.

Where manual says for table rollers care needs to be taken adjust as the screws are on eccentrics and you need to adjust on both ends… how difficult is this? Just tweek a little at a time and measure results?

-- Golfisher, NY

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Fred Hargis

5296 posts in 2758 days


#7 posted 01-14-2019 06:30 PM

Maybe (the both ends part). The important thing is that the rollers be close and (again) parallel. The manual suggests there is no perfect setting and actually suggests 2 different heights, one for rough and one for finished…this is just flat silly. Who’s going to adjust the damn things when planing stock? But the eccentric screws do give you some precision when adjusting them, and I guess I don’t consider it difficult…but it can be tedious. My rollers are about .004 above the table and I plane everything (rough finished) stock that way. Yes, you tweak a little and measure the results laying a straight edge (a good one) across the rollers and using a feeler gauge. BTW, you may have this: my manual says .001 for finished stock, and .003 to .005 for rough stock…both are above the table.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Golfisher

25 posts in 594 days


#8 posted 01-22-2019 03:43 AM

Follow up question on tuning of DC380 planer. Spring tension of infeed and outfeed rollers. Manual says for the infeed roller to set the screws so there are four threads showing above the table casting. On my machine one is flush and the other is three threads below table casting. On the outfeed roller manual says to set screws with one thread showing above table casting. Mine has the same as infeed with one flush and one three threads below table casting. I am going to set as manual says but am wondering if these settings change over time? Any thoughts if with older machine should still use manuals suggested settings?
Thanks in advance.

-- Golfisher, NY

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Golfisher

25 posts in 594 days


#9 posted 01-22-2019 03:48 AM

-- Golfisher, NY

View CaptainKlutz's profile

CaptainKlutz

805 posts in 1759 days


#10 posted 01-22-2019 09:27 AM

Still at it, Huh? :)

IMHO – Unless the tension springs on your in/out feed rollers are damaged, the default settings should be good starting point.

In any situation, you want the pressure to be same on both sides of roller.
Should be no reason to have one spring height/tension different than other, unless maybe feeding tapered lumber or compensating for damaged part?
Cutter head & table are adjusted parallel within couple of thousands?
Feed rollers and table are also adjusted parallel?

If you are worried about old springs:
- remove the large adjustment set screws completely
- pull the springs out and measure the spring heights
They should all be about same, if not replace them.

Might want to check the bronze bearings while springs are out. Hole depth should be about same, assuming cutter head and roller are parallel to each other and table.

Caution with springs out of hole: while there should be small roll pins keeping the feed roller bronze bearing blocks centered in casting on top of retaining plates, I have seen machine were these pins are missing. If roll pins are not visible below retaining plate, do not move the feed rollers side to side with spring out, or roller/bearing may drop off the retaining plate.

FWIW – If I set my DC-380 in-feed spring pressure so the screw is flush with casting, feeding lumber in requires significant push to get it started. When tension setting screw 2-3 threads above makes it much easier. If the setting is more than 4 threads above the casting, lumber with large variation does not grab and feed very well.

Bottom line: The spring pressures are balancing act.
Set default, and adjust as needed so lumber feeds consistently.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

View Fred Hargis's profile

Fred Hargis

5296 posts in 2758 days


#11 posted 01-22-2019 11:32 AM

Can’t say that I’ve ever changed mine from the factory suggestion.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Golfisher

25 posts in 594 days


#12 posted 01-22-2019 03:06 PM

In the event I need to replace springs, does anyone know of a source?
Thanks

-- Golfisher, NY

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Golfisher

25 posts in 594 days


#13 posted 01-26-2019 02:01 AM

OK Gentlemen I now have all settings as close as I can to those recommended in manual and the lumber is not being fed properly either infeed or outfeed I believe. CaptainKlutz I see that you have your infeed screw tension screws even with the casting. I am going to do the same with that. As the outfeed roller is loose also I believe should I set the outfeed spring tension screws even with casting also? Thoughts?
Thanks
Jeff

-- Golfisher, NY

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Golfisher

25 posts in 594 days


#14 posted 02-02-2019 05:06 PM

CaptainKlutz here is pic that I could not figure out how to send in a message.

-- Golfisher, NY

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Ripper70

1222 posts in 1173 days


#15 posted 02-02-2019 05:31 PM

-- "You know, I'm such a great driver, it's incomprehensible that they took my license away." --Vince Ricardo

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