Author Topic: OF1400 - Are centering issues still a concern?  (Read 8777 times)

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Offline 4nthony

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Re: OF1400 - Are centering issues still a concern?
« Reply #30 on: November 02, 2021, 03:01 PM »
Did you ever get a response?

After the initial back and forth describing the issue, I never heard anything back.

My experience with the 1400 and guide bushings is the same as what Cheese posted: dog holes with deviations. It's easy to reproduce. I haven't done much else with guide bushings since, but if I needed to, I would probably reach for my Bosch.

Otherwise, I love the 1400, especially when paired with a guide rail.


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Anthony

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Offline Mike Goetzke

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Re: OF1400 - Are centering issues still a concern?
« Reply #31 on: November 02, 2021, 03:28 PM »
I bought a piece of cast plexiglass to make my own base (ha-when I get some extra shop time). I'm wondering should the base plate be round, round with a flat on one side, or "tear-drop" (like Pat Werner)?

Thanks

Offline Lincoln

  • Posts: 238
Re: OF1400 - Are centering issues still a concern?
« Reply #32 on: November 02, 2021, 04:21 PM »
I made a simple jig to rout butt hinges into door edges and jambs. Worked beautifully, with the 1400 + copy ring - until I offered the door up to the jamb. Hinge mortises didn't line up. This should have been impossible, as I used the same full length jig for door and jamb. Realised it was because the router was oriented different ways for matching mortises and the off-centre and slop came into play. Had to mark everything with 'handle this way' to make sure I oriented the router the same way for all cuts. VERY frustrating. I've since bought a clear plexi base that takes standard rings.

Offline Mike Goetzke

  • Posts: 882
Re: OF1400 - Are centering issues still a concern?
« Reply #33 on: November 02, 2021, 04:26 PM »
I made a simple jig to rout butt hinges into door edges and jambs. Worked beautifully, with the 1400 + copy ring - until I offered the door up to the jamb. Hinge mortises didn't line up. This should have been impossible, as I used the same full length jig for door and jamb. Realised it was because the router was oriented different ways for matching mortises and the off-centre and slop came into play. Had to mark everything with 'handle this way' to make sure I oriented the router the same way for all cuts. VERY frustrating. I've since bought a clear plexi base that takes standard rings.

@Lincoln Can you provide a link to the source you purchased the plexi base from?

Offline 4nthony

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Re: OF1400 - Are centering issues still a concern?
« Reply #34 on: November 02, 2021, 04:27 PM »
I missed this part of your message in my previous reply
Are there any solutions? Maybe an alternative base and bushing system? Wondering what you ended up doing.

I picked up a sheet of 3/8" acrylic and have been drilling test holes in MDF to get the fit right for threaded guide bushings. I haven't built the base yet but will hopefully get to it soon.



There are 3rd party bases available that will also accommodate threaded guide bushings, but some require you to drill your own holes for the 1400.

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Anthony

"The best way to get a correct answer on the internet is to post an obviously wrong answer and wait for someone to correct you." - Kevin Kelly

Offline Mike Goetzke

  • Posts: 882
Re: OF1400 - Are centering issues still a concern?
« Reply #35 on: November 02, 2021, 04:29 PM »
A while back I found this video on making your own:


Offline Lincoln

  • Posts: 238
Re: OF1400 - Are centering issues still a concern?
« Reply #36 on: November 02, 2021, 04:31 PM »
I made a simple jig to rout butt hinges into door edges and jambs. Worked beautifully, with the 1400 + copy ring - until I offered the door up to the jamb. Hinge mortises didn't line up. This should have been impossible, as I used the same full length jig for door and jamb. Realised it was because the router was oriented different ways for matching mortises and the off-centre and slop came into play. Had to mark everything with 'handle this way' to make sure I oriented the router the same way for all cuts. VERY frustrating. I've since bought a clear plexi base that takes standard rings.

@Lincoln Can you provide a link to the source you purchased the plexi base from?

I'm in Australia, so probably not much use if you're in the US, but it was this one - https://www.carbatec.com.au/router-universal-base-plate-suits-pc-style-bushes-ct-bpa-1


Offline rst

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Re: OF1400 - Are centering issues still a concern?
« Reply #37 on: November 02, 2021, 04:40 PM »
I've made various router bases or the last 40 years.  Much like the video, I use the original bases for the attachment holes.  To insure concentricity I plunge a 1/4" bit after making the just oversize base.  I then use a piece of drill rod to pin the base to a subbase and clamp clamp the the unit to my stationary sander and rotate the router base until the diameter desired...voila...perfectly centered.

Offline fshanno

  • Posts: 1069
Re: OF1400 - Are centering issues still a concern?
« Reply #38 on: November 07, 2021, 01:37 PM »
This would be a super easy fix for Festool (or a third party).  The problem is that the diameter of the snap-in is too small.  You can see it clearly in the photos.  All Festool has to do is make a snap-in universal bushing holder that has a slightly larger diameter.  I'm looking at about .5mm on mine. 

This assumes that the receiving indentation in the base is concentric with the shaft.  I bet that is very close, close enough for woodworking anyway.

The one thing we learn from history is that we never learn from history.

Offline Cheese

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Re: OF1400 - Are centering issues still a concern?
« Reply #39 on: January 26, 2022, 07:54 PM »
Having gone down this rabbit hole several times in recent years I've come to realize that the snap-in template bushings used on the OF 1400 & OF 2200 may or may not center around the router bit.

It is a junk-shoot and consequently sometimes this is an issue and sometimes this is not an issue as in, sometimes they need to be centered and sometimes they don't need to be centered to produce a functional part. I did some testing a few years ago and the distances could vary from being .005" off center to almost .030" off center.

While using the 1400 this afternoon and reflecting upon my previous testing I realized that in the past I never measured router bit runout on the 1400 as I assumed it would be .001" or less so that wasn't a big deal.

Just for giggles I measured runout today and was totally surprised with the outcome. I mounted an SGS carbide end mill into the router and then set up the gaging equipment. It measured .0037" to .0042". I may need to check to see if the bearings are bad. I can't find the Festool factory spec but I'm sure it's not .004".





« Last Edit: January 26, 2022, 08:02 PM by Cheese »

Offline squall_line

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Re: OF1400 - Are centering issues still a concern?
« Reply #40 on: January 26, 2022, 07:57 PM »
Just for giggles I measured runout today and was totally surprised with the outcome.

How can you leave us hanging like that, man?!?!

Offline Cheese

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Re: OF1400 - Are centering issues still a concern?
« Reply #41 on: January 27, 2022, 10:36 AM »
One other thing I noticed yesterday when I was fiddling with the 1400, is that when I simply removed the template bushing and reinstalled it, it did not return to its original position.

Then when I removed the template bushing, rotated it 180º and reinstalled it, it aligned itself better than the first position it was in. So it really is a catch-as-catch-can issue with the 1400 and I can't imagine it's any different with the 2200. 

Maybe I'll take a look at the 2200 later today.  [smile]

Offline afish

  • Posts: 1299
Re: OF1400 - Are centering issues still a concern?
« Reply #42 on: January 27, 2022, 10:54 AM »
and that right there is why I would never pay for 600-1000 for a festool router.  Those are the kind of issues one expects with a $99 dollar special from China. Glad it works for some.

Offline mino

  • Posts: 976
Re: OF1400 - Are centering issues still a concern?
« Reply #43 on: January 27, 2022, 03:16 PM »
One other thing I noticed yesterday when I was fiddling with the 1400, is that when I simply removed the template bushing and reinstalled it, it did not return to its original position.

Then when I removed the template bushing, rotated it 180º and reinstalled it, it aligned itself better than the first position it was in. So it really is a catch-as-catch-can issue with the 1400 and I can't imagine it's any different with the 2200. 

Maybe I'll take a look at the 2200 later today.  [smile]
Is it possible that the template is not always co-planar/aligned with the base of the router the same way?

I can imagine this being possible with a cone-shaped interface. In such case only making/having the plane of the template guide co-planar with the router base would make it centered "as intended".
When The Machine has no brains, use yours.

Offline Cheese

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Re: OF1400 - Are centering issues still a concern?
« Reply #44 on: February 03, 2022, 06:27 PM »
FWIW...I mentioned earlier that I was measuring between .0037"-.0042" of router bit runout on my 1400 and that really seemed excessive. The strange issue was the variance of .0005", that did not make any sense.

I concluded that something else was amiss so I removed the bit & collet and decided to clean everything up with some Dynaglide Plus and a good wipe down.

After everything was clean, I installed a 1/2" diameter dowel pin in the router and measured the runout again, runout was now down to .0008"...now that's more like it.  [big grin]  And I think the dowel pin has a concentricity of .0002"

I'm thinking of keeping a small cap on the collet socket to keep stuff out of the socket when a router bit is not chucked up. The first cap will be put on the CMS/2200 because that socket is just sitting there, upside down and waiting for something to fall inside.

Offline ricleh

  • Posts: 3
Re: OF1400 - Are centering issues still a concern?
« Reply #45 on: February 12, 2022, 10:18 PM »
This is the solution to the centering issue that I came up with when playing around with the Woodpeckers template for drilling holes for an MFT style top.  I first made the aluminum bushing that Cheese described in another post and then made a replacement for the Festool guide bushing adapter.  My guide bushing adapter uses the traditional Porter Cable style guide bushings and is quite accurate and repeatable.  I will try to link to my other post.

Link