Author Topic: (Yet another) 80/20 MFT/SYS Cart  (Read 92562 times)

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Offline Dusty.House

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #120 on: January 31, 2018, 01:59 AM »
Thanks!

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Offline Bugsysiegals

  • Posts: 86
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #121 on: February 04, 2018, 06:13 PM »
I bought this angle stock and plan to cut it down to smaller pieces to mount my MFT top using t-nut and screw to mount to the extrusion.

Angle Stock

Like this ... Angle Brackets

Now for my challenge, I’m making the height of my cart, without top, slightly less than my table saw, jointer, and planer, so it can serve as an outfeed for them, and it will be higher than them with the top attached so the table saw can be the outfeed for it (I’ll use the smaller piece of MDF without holes as a replaceable piece where I cross cut like a real MFT table).  The challenge, how do I attach the top in a way which allows me to remove in a reasonable amount of time?  With wood side panels, it will be difficult to reach inside to unscrew things. The tabs are aluminum so I’m not sure how well they’ll hold without stripping out. Perhaps some sort of retainer threaded through the aluminum with female end and a small screw which is recessed into the table from the top so I can power drive them out and fasten by hand as needed?
« Last Edit: February 04, 2018, 06:27 PM by Bugsysiegals »

Offline Bugsysiegals

  • Posts: 86
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #122 on: February 04, 2018, 06:19 PM »
I’m thinking something like this which would thread into the bracket from underneath, because of its height somewhat into the MDF which is counterbored, and a screw with wider head which is countersunk from the top.  Do you think that would work well?  Where do I find smaller versions of these, not even sure what they’re called.

Coupler

Offline Bugsysiegals

  • Posts: 86
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #123 on: February 04, 2018, 06:26 PM »
Ok perhaps something like this with red locktite.

Threaded Insert

Offline Bugsysiegals

  • Posts: 86
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #124 on: February 13, 2018, 11:17 PM »
How did you attach your casters to the bottom of the extrusion?  We’re you able to use t-nuts?

Offline Richard/RMW

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #125 on: February 14, 2018, 08:54 PM »
How did you attach your casters to the bottom of the extrusion?  We’re you able to use t-nuts?

Using 3 of the 4 holes in the caster base, thread one 5/16" cap screw into the end hole in the corner extrusion (threaded) and 2 others into t-nuts in the front/rear & side extrusions. 4th hole is unused.

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

Offline Bugsysiegals

  • Posts: 86
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #126 on: February 17, 2018, 11:28 AM »
Thanks, I was looking at doing it that way too but wanted to confirm.

Offline ryanjg117

  • Posts: 111
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #127 on: April 02, 2018, 08:03 PM »
Gents, I recently came into possession of a table made from 80/20 extrusions that I’m breaking down or actually reconfiguring to serve as a second JumboMFT or assembly table. I’ve come across a right angle internal fastener I haven’t seen before, and none of my hex keys seem to fit it. It looks to be about a 7mm hex hole, and of course 7mm is the hex size that seems to be skipped in most sets. But, I’m not sure if a hex would even work here as the fastener seems to have some key veins, 6 point it appears. Never seen a tool like this so wondering if you know how I can remove these threaded inserts.

Here are the pictures:
https://photos.app.goo.gl/UNCtk0ed2Rjqm6uv2

Offline Neohio

  • Posts: 16
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #128 on: April 03, 2018, 08:07 AM »
Gents, I recently came into possession of a table made from 80/20 extrusions that I’m breaking down or actually reconfiguring to serve as a second JumboMFT or assembly table. I’ve come across a right angle internal fastener I haven’t seen before, and none of my hex keys seem to fit it. It looks to be about a 7mm hex hole, and of course 7mm is the hex size that seems to be skipped in most sets. But, I’m not sure if a hex would even work here as the fastener seems to have some key veins, 6 point it appears. Never seen a tool like this so wondering if you know how I can remove these threaded inserts.

Here are the pictures:
https://photos.app.goo.gl/UNCtk0ed2Rjqm6uv2


Try some torx drivers.

Offline Michael Kellough

  • Posts: 3469
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #129 on: April 03, 2018, 09:46 AM »
@ryanjg117 please try to get more info on the source of that material. It is not made by 80/20 but some other company.

Also, very interested in the source and name of that hollow set screw. It allows the movable butt joint connection needed to make an MFS type construction without the milling usually required.

I’ve never seen a screw had like that either but try Torx.

Offline ryanjg117

  • Posts: 111
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #130 on: April 03, 2018, 10:22 AM »
@ryanjg117 please try to get more info on the source of that material. It is not made by 80/20 but some other company.

Also, very interested in the source and name of that hollow set screw. It allows the movable butt joint connection needed to make an MFS type construction without the milling usually required.

I’ve never seen a screw had like that either but try Torx.

I'll try Torx tonight and let you all know. I believe the machine was custom built in Germany, so the extrusions could be Bosch Rexroth, I'm not sure. There were also two SEW-Eurodrive pumps and two SEW-Eurodrive 0.37KW gear motors mounted to this table, along with two massive 50mm diameter linear shafts with bushings and a cylinder that controlled the adjustable height of the table. It's way beyond my pay grade but it will perform nicely for my meager woodworking and shop needs. :)

Offline Richard/RMW

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #131 on: April 03, 2018, 10:28 AM »
Agree with Michael definitely not actual 80/20 extrusion but I would love to get my hands on some of those fasteners. If anyone tracks them down please post the info here.

Thanks.

RMW

(EDIT) After re-looking at the photo seems to me the part threaded into the extrusion requires a custom key for installation. Looks like it might also be factory installed based on the dimple that appears to be peened to lock the fastener in place and prevent it from turning?



RMW
« Last Edit: April 03, 2018, 10:32 AM by Richard/RMW »
As of 10/17 I am out of the Dog business and pursuing other distractions. Thanks for a fun ride!

Offline Michael Kellough

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #132 on: April 03, 2018, 10:51 AM »
@Richard/RMW makes a good point, even with the right driver (which might be a special tool with a long round shaft extending beyound the external splines) you’re going to have a hard time turning that screw without grinding away the aluminum that has been peened into the thread.

Offline Neohio

  • Posts: 16
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #133 on: April 03, 2018, 11:03 AM »
Agree with Michael definitely not actual 80/20 extrusion but I would love to get my hands on some of those fasteners. If anyone tracks them down please post the info here.

Thanks.

RMW

(EDIT) After re-looking at the photo seems to me the part threaded into the extrusion requires a custom key for installation. Looks like it might also be factory installed based on the dimple that appears to be peened to lock the fastener in place and prevent it from turning?

(Attachment Link)

RMW

I don't see a peen at all. I see some extruding/rolling of the material to make way for the threads of the insert.

Offline ryanjg117

  • Posts: 111
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #134 on: April 03, 2018, 02:21 PM »
I've got a call into 80/20 to determine what kind of fastener this is. Apparently they stocked it some time ago but discontinued it because it did not sell. I'll let you know what I discover.

Offline wheely

  • Posts: 10
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #135 on: April 03, 2018, 02:46 PM »
This looks like an Item24 "Automatic" fixing

http://product.item24.co.uk/en/home/products/product-catalogue/productdetails/products/automatic-fastening-sets/automatic-fastening-set-8-bright-zinc-plated-38808.html







Their Line 8 (multiples of 40mm x 40mm with an 8mm slot) is just the right size for Festool clamps

There seems to be representation in the US
http://www.item24us.com/
item America, LLC
12105 Insurance Way
Hagerstown, MD 21740
Phone: +1 (301) 665-9772
Fax:     +1 (301) 665-9775

Offline wheely

  • Posts: 10
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #136 on: April 03, 2018, 03:01 PM »

Offline Neohio

  • Posts: 16
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #137 on: April 03, 2018, 03:03 PM »
Installation instructions for the Item Automatic fasteners can be found here, you may need to register to get the PDF.

http://www.item24us.com/media-center/installation-instructions/fasteners.html

http://www.item24us.com/fileadmin/images/montageanleitungen/pdf/en/DOK_MONT_automatik-verbindung__SEN__AIN__V1.pdf

McMaster-Carr has these available as PN 47065T339

Offline rvieceli

  • Posts: 811
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #138 on: April 03, 2018, 03:15 PM »
It also appears that you need a T50 Torx bit to fit that threaded piece.

https://www.homedepot.com/p/Husky-T50-Torx-3-8-in-Drive-Bit-Socket-H3DHBST50/202913549

Ron

Offline Michael Kellough

  • Posts: 3469
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #139 on: April 03, 2018, 03:25 PM »
@wheely @Neohio @rvieceli great sleuthing guys!

Didn’t know about Item before.

I’ve bought tons of stuff from McMaster including lots of T-slot framing and fasteners and never noticed that particular item before.

Don’t think I have a T50 bit either...

Offline ryanjg117

  • Posts: 111
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #140 on: April 03, 2018, 09:27 PM »
Yep, I contact 80/20 Technical Support today and they emailed me this page from the archives. They no longer offer this fastener (it didn't sell apparently) but it also says T-50 Torx. I'll have to check the tool chest to see if I've got it. @Neohio, since you were the first to successfully guess Torx, PM me your address and I'll ship you a temporary tattoo.

Offline Richard/RMW

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #141 on: April 04, 2018, 08:16 AM »
Mystery solved. @ $10+ from MMC I can see why it would only get used in a very specialized situation. MMC probably just has old stock.

Thanks for the info.

RMW

Yep, I contact 80/20 Technical Support today and they emailed me this page from the archives. They no longer offer this fastener (it didn't sell apparently) but it also says T-50 Torx. I'll have to check the tool chest to see if I've got it. @Neohio, since you were the first to successfully guess Torx, PM me your address and I'll ship you a temporary tattoo.
As of 10/17 I am out of the Dog business and pursuing other distractions. Thanks for a fun ride!

Offline Neohio

  • Posts: 16
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #142 on: April 04, 2018, 11:56 AM »
Mystery solved. @ $10+ from MMC I can see why it would only get used in a very specialized situation. MMC probably just has old stock.

Thanks for the info.

RMW

Yep, I contact 80/20 Technical Support today and they emailed me this page from the archives. They no longer offer this fastener (it didn't sell apparently) but it also says T-50 Torx. I'll have to check the tool chest to see if I've got it. @Neohio, since you were the first to successfully guess Torx, PM me your address and I'll ship you a temporary tattoo.

Some of the other sized were more reasonable. They might not be old stock. They could be from a different vendor.

Offline jg24

  • Posts: 4
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #143 on: June 04, 2018, 11:18 AM »
I want to thank Richard for showing us a great project layout and build.  I am almost done with a similar project.  I decided to have drawers on both sides instead of a single deep drawer.  I will also be working on the top in the coming weeks.  I will use the Parf  Guide tool to create a Dog hole top.


Offline jg24

  • Posts: 4
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #144 on: June 04, 2018, 11:19 AM »
Front Side

Offline jg24

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #145 on: June 04, 2018, 11:20 AM »
Back Side

Offline blaszcsj

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  • I like building stuff with my hands.
Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #146 on: June 04, 2018, 12:11 PM »
@jg24 How are you supporting/holding/positioning the main top?
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Offline Richard/RMW

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Re: (Yet another) 80/20 MFT/SYS Cart
« Reply #147 on: June 04, 2018, 04:29 PM »
Back Side

@jg24 Nice! Looks like you even trimmed those top corner brackets to get full access to the t-slot? Never occurred to me to move them down to open up both slots in the top rails, kinda a "duh" moment for me. Great idea.

@blaszcsj easiest option I found was using something 8mm or 5/16" thick to slip into the slot and connect the top to it from below. Scrap of wood or AL bar, etc. You can also shim up if needed as the top will drop in 15mm on the 1515 profile.

RMW

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