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View Full Version : For EddyCurr and those following the 3in1 Machine mods



CCWKen
01-19-2012, 09:09 PM
I thought I had posted the mods here before but it may have been on one of the Metal Shaping sites. In any case, I couldn't find it. For those of you with interest, I submit the following modifications made to a Harbor Freight 40" Shear, Brake and Roll Machine.

Here's the stand. It's pretty basic but its job is more than to just support the tool. This image shows a cut-down I-beam added to help support the cutting table. Compression adjustment (support) is provided by the three bolts on top of the I-beam. There's a 3/8x2" flat welded to to top of the I-beam that's drilled and tapped to accept the bolts and provide some adjustment. The nuts (appear later) are to lock the bolts.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/Shear-2.jpg



At the forward underside of the cutting table, I added four wedges. These wedges are drilled and tapped to accept adjusting bolts that help keep the table from flexing forward or away from the upper cutting edge.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ComboReinforced-4.jpg


This U-bolt was added later. During cutting, I noticed the machine LIFTING between the leg mounts. Not a lot but it was noticeable. To help reduce the stress on the leg mounts, I added a U-bolt in between each leg bolt. Don't over-tighten this U-bolt--Just snug enough to take-up slack.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ComboReinforced-2.jpg

(To be continued)

CCWKen
01-19-2012, 09:22 PM
This picture shows a piece of 1/2" flat bolted to the upper Brake support. I had to grind an area of the brake support at the center. The casting had an area that projected in the center and kept the flat from full contact. The large number of bolts is to distribute the load.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ComboReinforced-1.jpg



The next two pictures show the stock cut/brake arm at the upper connection and the stock cam used with the crank arm. The crank had to go!

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ShearMods-1.jpg

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ShearMods-2.jpg

CCWKen
01-19-2012, 09:34 PM
These two pictures show the parts I fabricated to replace the crank arm and allow for powering the machine. It's really just a spud to allow mounting of a sprocket. The parts were duplicated for each side. The original cams were retained.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ShearMods-3.jpg

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ShearMods-4.jpg


The last picture shows the mounting of the motor and transmission. Earlier, I stated it was a four speed. It's actually a five speed. I use reverse for cutting and braking to keep the chain tension force off the idler sprocket. I use the other speeds for rolling.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/Shear-4.jpg

sasquatch
01-19-2012, 09:46 PM
CCWken, i don't have one , just wanted to say the pics and info you have posted here will be a great help to someone with one i'm sure.

Helping others like this is the great part of the HSM forum.

ed_h
01-19-2012, 10:30 PM
CCWKen--

Great info!

I have one of these machines, and have been slowly doing mods to improve it. I got a lot of ideas from your posts.

One thing I had on mine was that the stiffening strap on the back of the upper shear blade support was useless. With the adjusting bolt slacked off, my shear blades were already too close in the middle, and too far apart on the ends. Tightening the bolt, of course, just made it worse. I had to put shim stock behind both blades to get them so that I could have some tension on the strap and have the blades parallel. Works much better now.

Fasttrack
01-19-2012, 10:36 PM
I've been meaning to buy a shear for awhile and I always wondered about those 3-in-1 machines. Looks like, with some modification, they could be very useful! Thanks for posting!

CCWKen
01-19-2012, 11:07 PM
One thing I had on mine was that the stiffening strap on the back of the upper shear blade support was useless. With the adjusting bolt slacked off, my shear blades were already too close in the middle, and too far apart on the ends. Tightening the bolt, of course, just made it worse. I had to put shim stock behind both blades to get them so that I could have some tension on the strap and have the blades parallel. Works much better now.
I'd have to go out and look to be sure but I think that center bolt (and nut) can be adjusted to push or pull the ends. Tighten the bolt to push the ends toward the lower blade. Loosen the bolt and tighten the nut behind the bar to pull the ends away from the lower blade. It takes some tinkering but you should be able to get the upper blade support straight.

Arcane
01-20-2012, 12:23 AM
Thanks Ken. :) Using your mods would turn my 3 in 1 into a much more useful machine.

jjclear
01-20-2012, 09:17 AM
Ken
The upgrades were posted on the Metalshapers site a while ago. Unfortunately those posts were lost in one of the crashes they had. Thanks for putting this up.

J.

Bill McLeod
01-20-2012, 09:23 AM
Have the modifications increased the capacity and if so what gauge can you now use in the machine?

ed_h
01-20-2012, 09:27 AM
I'd have to go out and look to be sure but I think that center bolt (and nut) can be adjusted to push or pull the ends. Tighten the bolt to push the ends toward the lower blade. Loosen the bolt and tighten the nut behind the bar to pull the ends away from the lower blade. It takes some tinkering but you should be able to get the upper blade support straight.

Ken--

On mine, the bolt will only push the middle because its not fastened to the upper blade support. I remember considering ways to modify it so it would push or pull.

EddyCurr
01-20-2012, 02:19 PM
Thank you kindly for going to the trouble of searching out the additional
images featuring close-ups of the details and typing up captions.

Very helpful !


This picture shows a piece of 1/2" flat bolted to the upper Brake support.

The large number of bolts is to distribute the load.

http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/ComboReinforced-1.jpg
To others who may not have noticed it, CCWKen was able to make use
of ten of the existing tapped holes along the lower portion of the Brake
Support. (These receive the capscrews for the shear blade retaining
clamps that thread from the front of the machine.)


http://img.photobucket.com/albums/0903/CCWKen/ToolBox/ShearPressRoll/Shear-2.jpg
If resources (time, effort, money ...) were not an issue, would you
consider adding external plates/gussets to the web between the feet
in a similar fashion, in lieu of using the U-bolts ?

Thank you, again.

.

CCWKen
01-20-2012, 09:46 PM
Eddy - I'm not sure that would help. If a plate was added to the entire side and incorporated reinforcement to the feet it would help. Simply reinforcing the area between the feet would probably break the feet off during a heavy cut. As force is applied with the upper blade, the reinforced table is rejecting the force causing the lifting stress on the legs. The U-bolt was a Q&D but it seemed to help. Perhaps if a full-length reinforcement was welded to the stand then through bolted to the sides it might help. This would lower the stress on the foot mounts.

Good eye on the existing lower holes. I had forgotten about that. I now remember removing the upper blade support to drill the other holes. That thing was heavy even without adding the 1/2" flat. :eek:


Ed-H - There should be a nut behind the strap. You can see the extended bolt in the picture above--It's not run in all the way. If you tighten the nut against the strap it will pull the ends back (away from the table). To tighten the nut against the strap, you would turn it counterclockwise.


Bill McLeod - I can cut full length 20ga. and about 24" of 18ga. I've even cut 6x.015" spring steel but I don't recommend it be frequently. It would probably cut full length 18ga but the motor stalls. The motor was salvaged from a water pump that "claimed" to be 1hp. It's been making bearing noises lately so I'll be on the look-out for 1.5 or 2hp motor.

JJClear - Thanks. I knew I had posted it somewhere. I remember posting it on Metal Meet but after the "The Crash" and other difficulties with MM, a lot of posts were lost. It's been a while since I was back there.

ed_h
01-20-2012, 10:18 PM
There should be a nut behind the strap. You can see the extended bolt in the picture above--It's not run in all the way. If you tighten the nut against the strap it will pull the ends back (away from the table). To tighten the nut against the strap, you would turn it counterclockwise.


Ken--I just looked at mine. I think it's the same as yours. Yup, there is a nut behind the strap. With this arrangement, as the nut is moved up towards the head of the bolt, the strap is pushed away from the support, which pulls the ends of the top blade back, and pushes the center forward. I don't think it can do the opposite since the bolt is not fastened to the support itself, so it cant pull the center of the support back. That is how mine needed to move to get into line.

CCWKen
01-20-2012, 11:12 PM
Well, you had me wondering since I hadn't adjusted mine in quite a while so I went out to the barn to check. On mine, the bolt threads into the support so I can bow the support in either direction. I sure don't remember drilling and tapping it so it must have come that way. I checked the manual but the drawing shows the "crossbeam" from the other side and just lists the bolt and nut.

ed_h
01-20-2012, 11:28 PM
Interesting. On mine the bolt just bears on the support, but doesn't thread into it. Maybe it was a running change. Gives me an idea for a mod to mine, though.

Thanks for looking.

betteron2wheels
09-07-2017, 12:43 PM
I know this thread is old, but since PB mangled this and so many other forums I was wondering if the source or alternate photos for these mods are available.

Ill be working on my 3in1 in the near future and the photos would be super-helpful.

Thanks!

Jim Stewart
09-07-2017, 03:49 PM
I know this thread is old, but since PB mangled this and so many other forums I was wondering if the source or alternate photos for these mods are available.

Ill be working on my 3in1 in the near future and the photos would be super-helpful.

Thanks!

Firefox has an add-on that will allow you to see those PB images. Info in this thread:
http://bbs.homeshopmachinist.net/threads/74581-so-what-s-the-verdict-on-the-picture-thing?p=1133971#post1133971

Post 14 in that thread discusses a Chrome fix.

-js

01-7700
09-07-2017, 03:56 PM
If I right click on what used to be an image and 'open in new tab' it opens up a photobucket window - then right click on that and it opens up the original image.

Joel
09-07-2017, 03:57 PM
Firefox has an add-on that will allow you to see those PB images.

So you see the images in this thread? I have the Firefox Add-on and only see the "please update your account" speedometer image.

Curiously enough, all of my pictures are still appearing in old threads, and I have still not gotten an email from Photobucket (that I noticed anyway). Go figure.

Jim Stewart
09-07-2017, 04:36 PM
So you see the images in this thread? I have the Firefox Add-on and only see the "please update your account" speedometer image.


Yep, I see them fine. Don't have to do anything. But one thing I wondered about: apparently the first time I downloaded the fix it somehow didn't install in Firefox.

If it's installed, you should be able select tools > add-ons and see "photobucket embed fix" in the list. I've enabled/disabled it a number of if times testing and it works as expected.

-js

Mr Fixit
09-08-2017, 12:57 AM
Hi Group,
Here is my 3-1 after some modifications so that it was easier for me to use. The roller is a tool of it's own, just turn the wheel. The shear and brake are one in the same with a foot stomp operation. This gives me control of the material and the force to shear with control. The claim of 18ga. is still out of reach for the shear but it does cut 22,24,ga. steel full width. I do not have the brake plates installed until I need to use it. The blade clearance to get it to shear has to be about 0 for it to cut. the brake works well on the couple of pieces so far upto 18ga.

https://i.imgur.com/K5KVBmY.jpghttps://i.imgur.com/3wnIZrw.jpghttps://i.imgur.com/AtWr9NP.jpghttps://i.imgur.com/amXLvKN.jpg

If I can answer any questions on the modification fire away.

TX
Mr fixit for the family
Chris

CCWKen
09-08-2017, 09:17 AM
If I right click on what used to be an image and 'open in new tab' it opens up a photobucket window - then right click on that and it opens up the original image.
That doesn't work for me. In Windows IE-11, the "open in new tab" is greyed out and can't be selected. :confused:

hothmob
01-02-2018, 06:28 PM
Mr Fixit these are great modifications.
I just got one of these 3 in 1's and I like what you have done.
Can you elaborate on some of your process.
Thanks again!