Author Topic: (Yet another) 80/20 MFT/SYS Cart  (Read 123460 times)

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Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #150 on: November 24, 2019, 04:06 PM »
Front Side


I am trying to decide on how to make this corner connection of 1515 verticals to 1530 horizontals. 

I know running the 1515 verticals all the way to the top of the 1530 horizontals would be the strongest connection, but more work on routing clamp access to the slots.

Is this connection pretty solid, or would you recommend doing like Richard did which is in between these 2 options? 

Thanks

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Offline rst

  • Posts: 2277
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #151 on: November 24, 2019, 05:19 PM »
Use 3" x 3" - 1/4" angle on fastened on the inside.  Do not overlap the sides much like the MFT horizontals, this will negate having to rout an access slot to use your clamps.  Fasten your legs to the angle on the inside of the angle.  You could even use a pivoting fastener to fold the legs...again like the MFT. 

Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #152 on: November 24, 2019, 06:00 PM »
Use 3" x 3" - 1/4" angle on fastened on the inside.  Do not overlap the sides much like the MFT horizontals, this will negate having to rout an access slot to use your clamps.  Fasten your legs to the angle on the inside of the angle.  You could even use a pivoting fastener to fold the legs...again like the MFT.

Do you have a pic of this setup?  I am thinking I would need to inset the vertical legs 1.5" in each direction to join with an internal 3 x 3 angle.

Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #153 on: November 24, 2019, 06:48 PM »
You mean like this?

Offline rst

  • Posts: 2277
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #154 on: November 25, 2019, 09:43 AM »
Yup, that would work.  I never actually built mine as I have two MFTs.  I have built a lot of jigs with 8020 and actually keep a lot of extrusions in case a brain fart has me modifying anything or building something new.

Offline Richard/RMW

  • Posts: 1923
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #155 on: November 25, 2019, 01:37 PM »
Depends on whether you need to have both slots in the 1530 open. If not, I'd be inclined to keep the 1515 upright in the original position and use the end fastener method to secure it to the 1530 bottom holes. You can add some of the 90 degree tee-nut dinguses for additional support.

Opening the slots for clamp access is really simple with a 1/4" bit and 30mm template guide ring. If I had it to do over again that's the approach I'd take.

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

Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #156 on: November 25, 2019, 01:49 PM »
Depends on whether you need to have both slots in the 1530 open. If not, I'd be inclined to keep the 1515 upright in the original position and use the end fastener method to secure it to the 1530 bottom holes. You can add some of the 90 degree tee-nut dinguses for additional support.

Opening the slots for clamp access is really simple with a 1/4" bit and 30mm template guide ring. If I had it to do over again that's the approach I'd take.

RMW

You saying to ditch the tri-corner bracket as well and just run the 1515 vertical all the way up and connect using (2) end fasteners in each direction?

I saw your method for milling the slots without the Festool MFS, which I also don't have.  I will be ordering my extrusion this coming week.  Need to order up some extra sections to test this process.

Offline Richard/RMW

  • Posts: 1923
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #157 on: November 25, 2019, 02:06 PM »
Depends on whether you need to have both slots in the 1530 open. If not, I'd be inclined to keep the 1515 upright in the original position and use the end fastener method to secure it to the 1530 bottom holes. You can add some of the 90 degree tee-nut dinguses for additional support.

Opening the slots for clamp access is really simple with a 1/4" bit and 30mm template guide ring. If I had it to do over again that's the approach I'd take.

RMW

You saying to ditch the tri-corner bracket as well and just run the 1515 vertical all the way up and connect using (2) end fasteners in each direction?

I saw your method for milling the slots without the Festool MFS, which I also don't have.  I will be ordering my extrusion this coming week.  Need to order up some extra sections to test this process.

That approach would be super strong. You do need to drill an access hole in the slot accurately but it's simple with their jig or even a drill press. Then tap the ends of the 1530 and you are golden.

Saves a ton of money on brackets.

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

Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #158 on: November 25, 2019, 02:22 PM »
Yeah, I planned on ordering the drill jig for the 1530 profile and then use it for both the 1515 and 1530.

Think I'll stick with my original plan and run the 1515 verticals all the way up and connect with (2) end fasteners and mill out clamp slots.

Offline rst

  • Posts: 2277
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #159 on: November 25, 2019, 03:40 PM »
You can avoid the interference problem by attaching the leg on the inside of the angle bracket.

Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #160 on: November 25, 2019, 07:38 PM »
You can avoid the interference problem by attaching the leg on the inside of the angle bracket.

So something like this?  What kind of fasteners do you use with this?  Just screws and nutplates?

Offline Dusty.Tools

  • Posts: 171
    • Dusty.Tools
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #161 on: November 25, 2019, 09:52 PM »

Here's another option. You can overlap the extrusions where they meet by just 2/3rds, this gives you enough room to get a clamp in to both sides, and enough surface area to bolt them together.

However, there's not enough room to cover then end of the extrusion. So it get's full of saw dust and I found it got caught on clothes. Both could be solved, I've been thinking about 3D printing a cover that leaves the channel open but covers the holes but I haven't gotten around it....
@dusty.tools

Offline Michael Kellough

  • Posts: 4318
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #162 on: November 25, 2019, 11:21 PM »

Offline Richard/RMW

  • Posts: 1923
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #163 on: November 26, 2019, 09:38 AM »
You can avoid the interference problem by attaching the leg on the inside of the angle bracket.

So something like this?  What kind of fasteners do you use with this?  Just screws and nutplates?

In that configuration you can skip the blue angle and still use the access hole method, instead of the end fastener threading into the tapped hole you's use a t-nut in the 1530 slots.

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

Offline 08G8V8

  • Posts: 38
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #164 on: November 26, 2019, 09:45 AM »
You can avoid the interference problem by attaching the leg on the inside of the angle bracket.

So something like this?  What kind of fasteners do you use with this?  Just screws and nutplates?

In that configuration you can skip the blue angle and still use the access hole method, instead of the end fastener threading into the tapped hole you's use a t-nut in the 1530 slots.

RMW

Yeah, I was trying to model a 3x3 angle to see what rst was talking about with nesting the leg inside the angle.

This would make things much easier and quicker to assemble, but would have to sacrifice 3” of storage in both length and width.


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Offline Dusty.Tools

  • Posts: 171
    • Dusty.Tools
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #165 on: November 27, 2019, 02:32 AM »
You can avoid the interference problem by attaching the leg on the inside of the angle bracket.

So something like this?  What kind of fasteners do you use with this?  Just screws and nutplates?

In that configuration you can skip the blue angle and still use the access hole method, instead of the end fastener threading into the tapped hole you's use a t-nut in the 1530 slots.

RMW

Yeah, I was trying to model a 3x3 angle to see what rst was talking about with nesting the leg inside the angle.

This would make things much easier and quicker to assemble, but would have to sacrifice 3” of storage in both length and width.


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And you may have to skip a bench dog hole in each corner. You’ll have 3” of metal to avoid.


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@dusty.tools