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Education Any wood working people out there?

Discussion in 'General' started by Boscoe, 28 Apr 2019.

  1. Boscoe

    Boscoe Electronics extraordinaire.

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    Hi all, I'm going to be making a server rack out of plywood by stacking CNC cut pieces together to form the profile. I like the aesthetic of this and it'll match my speakers. The process of the stacking takes quite a while, for the rack it'll take about a couple of hours and so I'm looking for advice on long term curing wood glues. I need to move the pieces around for the full two hours. When I did my speakers I stacked 12 sheets using Titebond III and unfortunately had to deal with some misalignment as the first sheets stuck together before I could finish the stack. I don't think PVA will last long enough. Anyone know what I should use/where to look?

    Thanks
     
  2. Yaka

    Yaka Well-Known Member

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    Titebond III is the best there for wood. they do a a liquid version called hide glue which has around about an hour or so work time https://www.axminster.co.uk/titebond-liquid-hide-glue-ax22595
    i dont think there is any alternatives perhaps maybe from 2-part epoxys with a long cure time but the mess/clean and some cases fumes means its not worth it going down that road. but from what you are saying you will be breaking/moving the contact points? if so the bond will be weak.

    might i ask what exactly are you building that would need some movement before fully curing?
     
  3. Mr_Mistoffelees

    Mr_Mistoffelees The Lunatic on the Grass.

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    Second Titebond III as very good wood glue. Had a good look and I think you are unlikely to find any glue that will give 2 hours to keep adjusting.
     
  4. Mister_Tad

    Mister_Tad Super Moderator Super Moderator

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    Titebond III a go-go.

    If anyone says otherwise, they're simply incorrect.

    Over-size and trim if you can't guarantee you'll get it right on first-set
     
  5. 13eightyfour

    13eightyfour Formerly Titanium Angel

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    Titebond is my go to for all wood related projects, as has been suggested finding a wood glue that has a 2hr+ working time isn't going to be easy, can you not pin the various layers together with thin gauge nails/pins or screws? the hole will be covered by the next layer leaving only the final one that needs to be aligned perfectly before clamping it? I made a table top (similar to the laminated ply tables you can buy from untothislast) a while ago using that method and it worked out fine, much easier than dealing with a massive glue-up.
     
  6. ElThomsono

    ElThomsono Well-Known Member

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    Can you add holes for dowels at the CNC stage? It'll make alignment a breeze (perhaps, I don't have a complete mental picture of what you're doing).

    As an aside, I always use PVA. It smells of childhood and gets a plenty good bite. Also, dirt cheap.
     
  7. KayinBlack

    KayinBlack Currently Rebuilding

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    I'm gonna vote for titebond hide glue. Great open time and stronger than PVA.
     
  8. edzieba

    edzieba Virtual Realist

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    Alignment dowels, and 50 million clamps.
     
    Mr_Mistoffelees likes this.
  9. wolfticket

    wolfticket Downwind from the bloodhounds

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    If you're CNC-ing each piece could you include two holes accurately positioned on each layer for alignment/keying? That way to could have a vertical through piece/pin either for accurate alignment, either permanently or just for construction.
     

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