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Forum topic by CherryO posted 08-03-2019 03:06 AM 1054 views 0 times favorited 12 replies Add to Favorites Watch
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CherryO

52 posts in 1460 days


08-03-2019 03:06 AM

Topic tags/keywords: dj-15 jointer delta machine shop washington dc northern virginia warped reground regrind grind ground blanchard

My Jointer beds for my DJ-15 are dished around the cutterhead, was looking for some places to take it to have the beds reground in the Washington DC area. Also could other please share what approximate cost would be to regrind these? 6 inch width. Or if people could opine if this can be dealt with without having them ground would love to hear.
Thanks!


12 replies so far

View mtnwalton's profile

mtnwalton

78 posts in 1837 days


#1 posted 08-03-2019 03:27 AM

Don’t know current hourly rate but time should be about 1 1/2 hrs. Setup is longest part.

View CherryO's profile

CherryO

52 posts in 1460 days


#2 posted 08-03-2019 02:35 PM

Ok thanks mtnwalton. There are a few machine shops in the area, just was curious which ones to avoid for a project like this.
Also does anyone know if a parrellelogram style jointer is ok to regrind each table individually? I have heard the dovetail it is not ok.

View Aj2's profile

Aj2

3200 posts in 2609 days


#3 posted 08-03-2019 04:09 PM

Are you sure they need grinding. If the dished area is from wear is different then if the dished area is from the tables getting bend and stressed from the cams.
There’s lots of talk about adjusting tables with carpenter levels and straight edges that are not good enough for setting up a jointer.
Are you checking with something that’s reliable and straight.
Have you tried adjusting the cams to Coplane the tables.
Good Luck

-- Aj

View Chris208's profile

Chris208

246 posts in 3081 days


#4 posted 08-03-2019 04:36 PM

Most importantly, does the dishing effect the performance of the jointer? Do your boards come out straight and flat?

View CherryO's profile

CherryO

52 posts in 1460 days


#5 posted 08-03-2019 05:07 PM

Here is some background information. I picked this up DJ-15 for cheap in fair condition and took my precision straight edge over to test the flatness before buying. I noticed some light coming through the bottom of the straight edge… it seemed significant.Bought it anyway. I haven’t set it up to test yet but figured probably will need to have them reground. The bed is in my van and I figured instead of lugging down to the workshop then back out to the van I’d just look into having the trued up. The fence has about a .007 inch in the middle as well. there is still rust on it so I’ll probably have to clean that to get an accurate measure. Any thoughts?

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Aj2

3200 posts in 2609 days


#6 posted 08-03-2019 06:10 PM

A hollow on the outfeed side would make it difficult to set the knives. Esp if you were to use a dial indicator.
The stick drag method could still work ok.
Have you checked to see if the tables measure the same off the machine.
If have not known anyone to grind dj15 tables hopefully they won’t warp from the machining process.
I’ve had some jointer fences done but they were pretty thick.
I think it’s worth a try if your hollowed area more then 3 or 4 thousand.
I think a hump is worse then a hollow.
Good Luck

-- Aj

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CherryO

52 posts in 1460 days


#7 posted 08-03-2019 07:11 PM

Yeah I hope they don’t warp either. Maybe iI’ll just set up and see how straight the boards are then have them ground if they need it. AJ do you know if parrallelagram style jointers can be ground separately or should they both be attached when they go to grind them?

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Aj2

3200 posts in 2609 days


#8 posted 08-03-2019 11:24 PM

I really don’t know for sure.
I do know that each side has four adjustments bushing and cast iron can be twisted and warped easier then it appears.
You should try to find the adjustments manual online .
Be sure to have at least a 3ft precision straight edge or longer.
I think it’s worth a try before you take it to a machinist
Good Luck

-- Aj

View CherryO's profile

CherryO

52 posts in 1460 days


#9 posted 08-03-2019 11:55 PM

Ok will do. Based on what you mentioned about never having seen a dj15 be reground, I checked it again this time with feeler gauges. The most dishing I found was at the end of the infeed table and it was only .003 inch for about maybe a half an inch. the gaps around the cutter head we’re not there….go figure. I am now treating it with rust remover. I’ll need to read the manual as I want to take the cutter head off and treat that. I’ll post pics when I’m done. Any idea what these go for in great condition?

View Jared_S's profile

Jared_S

364 posts in 771 days


#10 posted 08-04-2019 01:02 AM



Ok will do. Based on what you mentioned about never having seen a dj15 be reground, I checked it again this time with feeler gauges. The most dishing I found was at the end of the infeed table and it was only .003 inch for about maybe a half an inch. the gaps around the cutter head we re not there….go figure. I am now treating it with rust remover. I ll need to read the manual as I want to take the cutter head off and treat that. I ll post pics when I m done. Any idea what these go for in great condition?

- CherryO

Just use it as is, .003 or .007 or .012 is well within spec..

As for price maybe 400 or so in the dc area.

View CherryO's profile

CherryO

52 posts in 1460 days


#11 posted 08-04-2019 04:40 AM

Ok. Thank you both for your help! I’ll set it up and see how it goes.

View CherryO's profile

CherryO

52 posts in 1460 days


#12 posted 08-04-2019 09:12 PM

Ok so I got the rust off and checked for level. this is what I have <.0015 on infeed and appx .002 on the outfeed. There is a little warp it appears as the diagnol measurement is a little worse on the outfeed. Regardless I now think this was a good deal at 100 bucks now that I know the bed is good and it turns on!! Thanks for all of the help!

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