Hammer A3-31 Table Extensions

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Forum topic by gmaffPappy posted 11-07-2019 04:25 AM 96 views 0 times favorited 2 replies Add to Favorites Watch
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82 posts in 2566 days

11-07-2019 04:25 AM

I’m looking at the Hammer A3-41 and am considering the table extensions.

Has anyone out there used table extensions with their Planer/Jointer? Are they really necessary or just a nice to have? I can make an attempt at justifying either, but I”m not sure how valid it would be, in either case.

Maybe with really long stock, they would be useful in keeping the whole piece planar?

For a lot less $$, one could use roller stands. – You don’t reference off them. They just hold the in/out feed stock, after it’s left the bed (reference surfaces).

Which is more important, out-feed or in-feed support?

At least, on this machine, the extensions could be used in planer and jointer mode. That’s nice.


-- If it's easy to do, you haven't spent enough time over engineering it.

2 replies so far

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347 posts in 3802 days

#1 posted 11-07-2019 10:20 AM

I have the Hammer A31 with two extension tables. They are quite massive aluminum constructions. However, I don’t quite like the connection method, it’s a bit finicky. Once you get it though, it stays in place.

I only use one for the planer. I use the other one often as a fence for my router table (it works really good for that, the two slots accept 5/16 bolts which is useful for stops etc.).

Using the extension on the planer is nice since you won’t have to run as quickly to the back once a piece gets through…

I doubt that it helps keeping pieces planer. If you look at larger industrial planers, they often have pretty short beds as well. From what I understand, it’s all about the area between the rollers and cutter that keep things plane.

As for the jointer… I have never used an extension there. I just use my table saw as an outfeed table if I have very long stock. But to be quite honest with you, my jointer beds are misaligned and I have not been able to get them right again. I find the adjustments for the jointer tables terrible. Actually, there isn’t really any adjustment for getting each corner aligned. Not sure what they were thinking… once out of whack, good luck getting it aligned again.

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175 posts in 348 days

#2 posted 11-07-2019 03:03 PM

I have an A3-31. I use one table extension that I switch between the jointer and planer functions as needed. I find it helpful on the outfield side when jointing boards 4 feet or longer. Similarly, I use it on the outfield side of my planer for planing anything much over three feet in length. I used the machine for a year or more before I ordered the table extension. I’m glad I bit the bullet and got the extension. I find it very helpful. I have two roller stands and used both of them with the jointer/planer. They worked OK, but the table extension is better. Once adjusted to be coplanar with the outfield tables, it is rock solid and you don’t have to continuously haev to fiddle with it to keep it aligned like you do with a roller stand.

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