T-Slot RepStrap 16

Posted by Tim on January 28, 2010

Here’s a couple screen-grabs of my latest RepStrap design built from 80/20 T-Slot aluminum framing and waterjet cut aluminum plate:

T-Slot RepStrap - Design 1

T-Slot RepStrap - Design 1

Orders went out a couple days ago, so I should have everything here next week.

Any suggestions for a name?  I’ve been thinking about “T-Rex”.

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  1. Corwin Thu, 28 Jan 2010 17:41:11 GMT+7

    Looks good! What fastening hardware are you using on the bottom corners?

  2. Tim Thu, 28 Jan 2010 18:24:19 GMT+7

    Corwin: I’m using a standard end fastener. I can’t find it on the 80/20 site, but you can see it here: http://www.grainger.com/Grainger/items/2RCU1

  3. Chris Kraft Thu, 28 Jan 2010 19:48:47 GMT+7

    Amazing design. I love it. Are you planning to post a parts list? I would love to try and build my own copy of this version.

  4. Tim Thu, 28 Jan 2010 20:00:38 GMT+7

    Chris: Yes, that is my goal. But I’m not going to release anything until I actually get one built. I’ve got to make sure it actually works :)

  5. Corwin Fri, 29 Jan 2010 00:00:26 GMT+7

    Interesting. I’ve used 8020 before but never seen that part.

  6. Brian Fri, 29 Jan 2010 03:30:51 GMT+7

    Yes, Please keep us updated. I would be interested in building one too. I just built a McWire and it is printing but…. it…. is….. very….. sloooooow. We need to have a RepStrap design that is more standardized (less building surprises) with a belt design. I think this might be a good direction to go.

  7. aka47 Fri, 29 Jan 2010 07:36:38 GMT+7

    Most excellent. When I originally looked at RepRap my first urge was to go the Aluminium extrusion route. Being short of cash at the time though I abandoned it. There was only the Darwin around at the time. It would be fun to do a Mendel in this stuff though, with PTFE sliders.

  8. James Jones Tue, 02 Feb 2010 08:29:33 GMT+7

    Hi Tim,
    A college flipped me a link to your site, impressive work!
    I am behind the CubeSpawn project, and wonder if you’d have any inclination to look at adapting a version of the design to fit it?
    feedback appreciated
    James

  9. goinreverse Wed, 10 Feb 2010 17:42:18 GMT+7

    I just found your site are I am working on the exact same concept. Rather than intending to use rods and linear bearings I am experimenting with the bearing pads that use the t-channel directly.

    You may want to take a look at the t-slot accessories on mcmaster (particular the 2 way and 3 way corner joins). Also check out there bearing guides (in a separate section), 8020 has those as well.

    I am curious on pricing, whether mcmaster or 8020 is cheaper.

    I see you are in CA, if you are going down to SCALE in LA on the 20/21 I’d be happy to buy you a beer.

  10. Mark Thu, 11 Feb 2010 07:32:07 GMT+7

    Just an FYI. Sorry if it sounds like a commercial but it looks like some of you are searching for a good source…I’m from the 80/20 Surplus eBay store. We sell a significant amount of surplus 80/20 parts and extrusions. A lot of it is quite inexpensive, especially auction listings. We offer a lot of new product as well and, we can add catalog items to your order if you don’t find it in the store. 80/20 is also available from distributors around the country as well as national sources like McMaster-Carr and Fastenal. You can find a distributor in your area by visiting the http://www.8020.net site.

  11. Mark Thu, 11 Feb 2010 07:35:59 GMT+7

    I should’ve noted that you can find a link to our eBay Store on the http://www.8020.net site or go direct using this link: http://stores.ebay.com/8020-Inc-Garage-Sale?refid=store

  12. goinreverse Thu, 11 Feb 2010 21:13:22 GMT+7

    Mark, I appreciate the effort to promote your store in a subtle way but all the parts I saw on your ebay store were more expensive than either mcmaster carr or the two distributors by easily 10% or 20% not including shipping which is extremely inexpensive from those sources. Buyers beware and YMMV. Florida motion control (flomoco.com) offers instant quoting online and direct linking with a sketchup library of components (awesome!). Our local distributor (copper state) is a little cheaper but the ordering is really complicated without the online tool. 8020 has demo carts with all the parts and fittings which you can go see at your local distributor or they will even bring directly to you. It is a pretty amazing system.

  13. MakerBlock Fri, 12 Feb 2010 09:06:33 GMT+7

    It looks like your posts RSS feed is down. :)

  14. Tim Wed, 17 Feb 2010 01:21:20 GMT+7

    MakerBlock: Thanks for the heads up. Should be working now. :)

  15. Troy Coon Sun, 11 Jul 2010 10:31:08 GMT+7

    I would be very interested in seeing a bom and plans for this repstrap. I think I could use it for a Dremel CNC and change tools to extrude also. Please share the plans and I will build one.

    Thanks
    Troy

  16. Peter Mon, 13 Dec 2010 21:41:28 GMT+7

    So what was the total cost for the parts in the picture?

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