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Mortising machine modification

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Project by Jarrhead posted 09-06-2019 05:21 PM 1157 views 2 times favorited 9 comments Add to Favorites Watch

I modified my benchtop mortising machine to make it a little more user friendly. I added a cross slide vise to the base, and did away with the finicky work holding setup that came with the machine. Since the vise raised the height at which the workpiece is held, I had to add a spacer block between the base and the upright to ensure proper clearance. Since my mods were made out of baltic birch plyWOOD, I guess this “project” qualifies to be posted here. I want to say that this was not my own brilliant idea. It was a tip sent in to Fine Woodworking by a subscriber (John Jory), and published in their February 2005 issue. The cross slide vise I used is a super cheap Chinese POS, but it is adequate for the purpose. If I were doing a lot of mortising, I would probably invest in a better model vise, or maybe even a floor stand mortiser. But for my hobby shop, this is really enough.

-- trn2wud





9 comments so far

View pottz's profile

pottz

7136 posts in 1550 days


#1 posted 09-06-2019 06:24 PM

that looks like a great idea for side to side but what about back and forth adjustment?

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View Woodstock's profile

Woodstock

256 posts in 3854 days


#2 posted 09-07-2019 02:17 AM

If it’s like my H/F POS the vise assembly will move in both X & Y directions. It’s just not too obvious from the pictures.

If you know what to look for you can see the Y-axis screw mechanism hiding low underneath the chrome vice screw between the two Y vice ways in the first picture. (The very end of the knob of the Y-axis handle is just poking out in the very back right side behind the fixed vise clamp, & in front of the plywood riser.)

Still it’s an nice add-on mod./idea. Guess I know what I’ll be doing this weekend.

As an aside: Being that this vise started life in China, I’d go the extra mile & study how the XY mechanism works, strip-it down to bare parts, clean it of the HF grease junk, top-to-bottom, properly re-grease & reassemble & ADJUST the factory built-in slop that it comes with -out. With a bit of TLC it can be upgraded from pure POS junk status to something that’s tolerable but still not anywhere near a KURT brand vise. (The Peterbilt’s of vices. IMHO)

Now if I could remember which pile in the back shed my POS H/F machinist vice is hiding in…
-Woodstock

-- I'm not old. Just "well seasoned".

View Jim Jakosh's profile

Jim Jakosh

23612 posts in 3671 days


#3 posted 09-07-2019 04:58 PM

That is a nice modification. You have two way travel with that compound slide!. iI can work like a milling machine and cut elongated slots!

cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View pottz's profile

pottz

7136 posts in 1550 days


#4 posted 09-09-2019 02:28 PM



If it s like my H/F POS the vise assembly will move in both X & Y directions. It s just not too obvious from the pictures.

If you know what to look for you can see the Y-axis screw mechanism hiding low underneath the chrome vice screw between the two Y vice ways in the first picture. (The very end of the knob of the Y-axis handle is just poking out in the very back right side behind the fixed vise clamp, & in front of the plywood riser.)

Still it s an nice add-on mod./idea. Guess I know what I ll be doing this weekend.

As an aside: Being that this vise started life in China, I d go the extra mile & study how the XY mechanism works, strip-it down to bare parts, clean it of the HF grease junk, top-to-bottom, properly re-grease & reassemble & ADJUST the factory built-in slop that it comes with -out. With a bit of TLC it can be upgraded from pure POS junk status to something that s tolerable but still not anywhere near a KURT brand vise. (The Peterbilt s of vices. IMHO)

Now if I could remember which pile in the back shed my POS H/F machinist vice is hiding in…
-Woodstock

- Woodstock


thanks woodstock i may have to look into one.

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View fivecodys's profile

fivecodys

1536 posts in 2202 days


#5 posted 09-09-2019 08:42 PM

This is a great idea. I agree with Jim, It’s like a milling machine.

-- When you leave your shop for the night, make sure you can always count to 10.

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