Author Topic: Cross cutting sheet goods to specific length?  (Read 8226 times)

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Offline Jeff2413

  • Posts: 72
Cross cutting sheet goods to specific length?
« on: April 19, 2015, 06:57 AM »
Im looking for an alternative method for cross cutting plywood.  I currently use a panel saw (which sorta sucks) with a measuring/stop set up but honestly the thing is really difficult to keep square and I'm tired of constantly picking up and moving 4x8 sheets.  I have the Rip Dogs parallel guides attached to my 108" track for ripping  and was wondering if the MFT was the answer or should I get more guides for my short rail?   Looks like a 96" long pc of plywood would be hard to cut to 34 1/2" on 1 MFT without additional support.   I can purchase more guides for $100 vs $900 for the MFT so cost is also a consideration.  Thanks everyone in advance.   

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Offline mwildt

  • Posts: 423
Re: Cross cutting sheet goods to specific length?
« Reply #1 on: April 19, 2015, 08:03 AM »
Have you looked at Paulk bench ? He has some videos on how he uses it to cut ply as well. Do a search.

Offline waho6o9

  • Posts: 1418
    • Garage Door Handyman.com
Re: Cross cutting sheet goods to specific length?
« Reply #2 on: April 19, 2015, 02:04 PM »
Here's what I use

2 Stanley saw horses, 1 Walko4 on top with and with out a MFT3 top.

Works great for me.


Offline SRSemenza

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  • Posts: 8730
  • Finger Lakes Region, NY State , USA
Re: Cross cutting sheet goods to specific length?
« Reply #3 on: April 19, 2015, 09:44 PM »
Im looking for an alternative method for cross cutting plywood.  I currently use a panel saw (which sorta sucks) with a measuring/stop set up but honestly the thing is really difficult to keep square and I'm tired of constantly picking up and moving 4x8 sheets.  I have the Rip Dogs parallel guides attached to my 108" track for ripping  and was wondering if the MFT was the answer or should I get more guides for my short rail?   Looks like a 96" long pc of plywood would be hard to cut to 34 1/2" on 1 MFT without additional support.   I can purchase more guides for $100 vs $900 for the MFT so cost is also a consideration.  Thanks everyone in advance.   

   A surface to support the sheet being cut, a shorter guide rail (I like the 75") , and a good square for setting the rail. I don't think the MFT is that great for cutting up 4' x 8' sheets due to the size.  MFT is great for cutting smaller pieces and other tasks. Two MFTs would be more than $900.

Seth

Offline John_

  • Posts: 159
Re: Cross cutting sheet goods to specific length?
« Reply #4 on: April 19, 2015, 09:50 PM »
To me, the beauty of the MFT is the accuracy of the 20mm holes...

You can easily make a full size MFT based on the Paul workbench design.  Purchase a MFT replacement top for about $85 from Amazon.  Clamp it to a sheet of 3/4" mdf and have a backer board underneath.  Drill out the bulk of the holes and then use a router with a flush trim bit to clean everything up and make a perfect copy.  Move the 'template' over, rinse and repeat

Offline fastbike

  • Posts: 124
Re: Cross cutting sheet goods to specific length?
« Reply #5 on: April 21, 2015, 10:16 AM »
With some 8020, mdf, tnuts and knobs you can make extention arms for the mft. Four arms will allow you to easily cut down full sheets.
I was so much older then, I'm younger than that now.

Offline Richard/RMW

  • Posts: 1802
Re: Cross cutting sheet goods to specific length?
« Reply #6 on: April 21, 2015, 12:00 PM »
With some 8020, mdf, tnuts and knobs you can make extention arms for the mft. Four arms will allow you to easily cut down full sheets.

Like these?

219149-0

219151-1

219153-2

RMW
As of 10/17 I am out of the Dog business and pursuing other distractions. Thanks for a fun ride!

Offline fastbike

  • Posts: 124
Re: Cross cutting sheet goods to specific length?
« Reply #7 on: April 23, 2015, 06:15 PM »
I've made extension arms based on Richard's information. The just flat work. Cutting down a 4x8 sheet is not problem. The arms can be arranged in any fashion. I typically use 2 long T-bolts with a 3/4" bushing and a knob. Since the 3/4" bushing is a bit small, I just wrap it with a little painter's tape until it is snug in the MFT/3.
I was so much older then, I'm younger than that now.

Offline JimD

  • Posts: 350
Re: Cross cutting sheet goods to specific length?
« Reply #8 on: April 25, 2015, 04:39 PM »
I guess it depends on what the piece is.  Last weekend when I was cutting up a couple sheets to make a cabinet, I used my track saw and parallel guides to make all the cuts.  I essentially depended on the corners of the plywood being square (although I checked them).  The pieces were 23 3/4 wide and 30+ long.  If they were narrow pieces, 12 inches or less, I would use my CMS or RAS with a stop. 

I plan to  make a Paulk style table about 3'x7' with the crosscut jig.  With it made, I would use that.  For a single cut, I might just mark it and use the tracksaw. 

Offline Emer Construction

  • Posts: 58
Re: Cross cutting sheet goods to specific length?
« Reply #9 on: April 27, 2015, 11:14 AM »
This is what I use
« Last Edit: April 27, 2015, 11:17 AM by Emer Construction »
Steven

Offline Nigel M

  • Posts: 99
Re: Cross cutting sheet goods to specific length?
« Reply #10 on: April 27, 2015, 11:29 PM »
I keep two 9' peices of kiln dried vertical grain fir (2x4)in my van for cross cutting.
The edges are eased and the flats sanded to avoid any scratching etc.
I simply clamp the 2x4s to my mft with the clamping elements and off I go.
super low tech but very effective.

Nigel
Ts55, Ct36, of1400,Domino xl700, Trion ps300, Abrasives Sys2, various guides,rails 1 1400, 2 1400 holy, 2 connector sets, ETS 150(3),compact cleaning set,
Sys 1 toolbox(for router bits),Sys storage systainer (2),lr32 kit, sys4 tool box(holds veritas mk11 sharpening system),mft/3,Rotex 150,Tanos sys2/with attic,sys2 with fein tool insert,sys midi2(2)sys midi3,csx installer kit, rts 400, conturo edge bander, edge trimming kit, mfk700

Offline DustyTools

  • Posts: 52
    • Dusty.Tools
Re: Cross cutting sheet goods to specific length?
« Reply #11 on: January 07, 2019, 09:52 PM »
With some 8020, mdf, tnuts and knobs you can make extention arms for the mft. Four arms will allow you to easily cut down full sheets.

Like these?

(Attachment Link)

(Attachment Link)

(Attachment Link)

RMW

@Richard/RMW - What length are those arms? I like this idea.

Offline Richard/RMW

  • Posts: 1802
Re: Cross cutting sheet goods to specific length?
« Reply #12 on: January 08, 2019, 07:12 AM »
With some 8020, mdf, tnuts and knobs you can make extention arms for the mft. Four arms will allow you to easily cut down full sheets.

Like these?

(Attachment Link)

(Attachment Link)

(Attachment Link)

RMW

@Richard/RMW - What length are those arms? I like this idea.

@DustyTools those are 4'. I have some that are shorter, around 40" that work just as well. Here's some additional yapping about those extensions.

RMW
As of 10/17 I am out of the Dog business and pursuing other distractions. Thanks for a fun ride!

Offline DustyTools

  • Posts: 52
    • Dusty.Tools
Re: Cross cutting sheet goods to specific length?
« Reply #13 on: January 08, 2019, 06:12 PM »
With some 8020, mdf, tnuts and knobs you can make extention arms for the mft. Four arms will allow you to easily cut down full sheets.

Like these?

(Attachment Link)

(Attachment Link)

(Attachment Link)

RMW

@Richard/RMW - What length are those arms? I like this idea.

@DustyTools those are 4'. I have some that are shorter, around 40" that work just as well. Here's some additional yapping about those extensions.

RMW

Thanks! I added some 48" to my latest Faztek order!

Offline thedevme

  • Posts: 73
Re: Cross cutting sheet goods to specific length?
« Reply #14 on: January 17, 2019, 07:45 PM »
This is what I use

What are you using on your Festool rail track?

Online TSO Products

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    • TSO Products
Re: Cross cutting sheet goods to specific length?
« Reply #15 on: January 20, 2019, 11:02 PM »
Im looking for an alternative method for cross cutting plywood.  I currently use a panel saw (which sorta sucks) with a measuring/stop set up but honestly the thing is really difficult to keep square and I'm tired of constantly picking up and moving 4x8 sheets.  I have the Rip Dogs parallel guides attached to my 108" track for ripping  and was wondering if the MFT was the answer or should I get more guides for my short rail?   Looks like a 96" long pc of plywood would be hard to cut to 34 1/2" on 1 MFT without additional support.   I can purchase more guides for $100 vs $900 for the MFT so cost is also a consideration.  Thanks everyone in advance.   

@Jeff2413  - how about a picture of the 108 inch track set-up set up you are currently using?
Hans
TSOproducts.com

Home of the GRS-16 and GRS-16 PE  plus TPG Parallel Guide -  the MTR-18 Triangle and Work Holding solutions plus AXMINSTER UJK in the USA

Offline box185

  • Posts: 52
Re: Cross cutting sheet goods to specific length?
« Reply #16 on: January 21, 2019, 12:07 AM »
With some 8020, mdf, tnuts and knobs you can make extention arms for the mft. Four arms will allow you to easily cut down full sheets.

Like these?

(Attachment Link)

(Attachment Link)

(Attachment Link)

RMW

Richard - Thank you for posting these images.

I like your approach to solving this problem.

Paul

Offline TrackTubesGuy

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    • TrackTubes.com
Re: Cross cutting sheet goods to specific length?
« Reply #17 on: January 21, 2019, 08:11 AM »

A surface to support the sheet being cut, a shorter guide rail (I like the 75") , and a good square for setting the rail. I don't think the MFT is that great for cutting up 4' x 8' sheets due to the size.  MFT is great for cutting smaller pieces and other tasks. Two MFTs would be more than $900.

Seth

I agree with @SRSemenza, that's why I came up with simple brackets to hold MFT extensions.  They really expand the capabilities of the MFT and allow me to break down sheet goods and/or support longer lengths of material  ...  although, I normally use the extensions on sawhorses for breaking down full panels because of the lower height. 

Offline Jcwoodshop

  • Posts: 26
Re: Cross cutting sheet goods to specific length?
« Reply #18 on: January 21, 2019, 08:59 AM »
TrackTubesGuy, I like your simple solution to the problem. Another item to add to my shop's To-do list.

Offline ctfeet

  • Posts: 36
Re: Cross cutting sheet goods to specific length?
« Reply #19 on: January 21, 2019, 09:40 AM »

I agree with @SRSemenza, that's why I came up with simple brackets to hold MFT extensions.  They really expand the capabilities of the MFT and allow me to break down sheet goods and/or support longer lengths of material  ...  although, I normally use the extensions on sawhorses for breaking down full panels because of the lower height.

Hi TrackTubes, what are yoiu using for the extension tubes? That looks like a pretty good idea!

Offline Sparktrician

  • Posts: 3706
Re: Cross cutting sheet goods to specific length?
« Reply #20 on: January 21, 2019, 11:07 AM »
I'm with Seth regarding the MFT.  I use a grid of very inexpensive 2x4s from the Borg, lap jointed, screwed together from the bottom, and set on top of a couple of saw horses.  If I need to break it down, it's 15 screws quickly zipped out with my CXS.  It slides into the back of my vehicle fully set up when I need to take it on-site.  Put two slabs of closed-cell foam on the top and call it done.  I may have spent $25 on materials, including screws.  YMMV...   [smile]
- Willy -

 "Remember, a chip on the shoulder is a sure sign of wood higher up." - Brigham Young

Offline tjbnwi

  • Posts: 5879
  • Cedar Tucky Indiana
Re: Cross cutting sheet goods to specific length?
« Reply #21 on: January 21, 2019, 07:53 PM »
Make a simple cutting table that breaks down when not needed.

Tom