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jdmitch

Member since Jun 2014 • Last active Mar 2017

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  • in Current Projects
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    I had hoped to bring this over to the 10th anniversary event tonight, but a series of mishaps prevented it (smashed finger, forgotten wallet, etc). I have progressed with the filler and fiber fix, and just added the first layer of primer... looks best in silhouette for now!

    Unfortunately, I learned how unforgiving primer is - every spot missed with a bit of filler was brutally exposed, so I will probably have to go back to another coat of filler for my sins.

  • in Bikes & Bits
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    I didn't think I would have to specify that part of the lurid imagery behind saying it was paint porn is that everyone can have a shake and a spray (of paint!!)

  • in Bikes & Bits
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    @Dogs @HHC I do love the paint on that GT though!

  • in Bikes & Bits
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    Only done the primer so far 😜 (update coming)

    Was thinking I should just bring the frame to the 10th anniversary and ask everyone from lfgss to add their personal touch with a rattlecan... Different take on what paint porn(!) means, but might let us all reflect on how problematic the term is ?! (Sorry that unintentionally sounded really serious/judgmental !)

  • in Current Projects
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    What a great project - and you seem to be #doingitright. I got several of the giovanissimi frames when they were rock bottom at PX (for wheels sized 20", 24" and 26") and have built up the first two. I have been waiting on the 3rd to post the CP thread (that and the end of the GT debacle).
    I had SO many issues with tyre clearance and brake alignment (some of which you also seem to have encountered). I am impressed you have sourced all the parts so quickly as it took me months (though I had a very tight budget for it so most parts were cannibalised or scavenged). In the end, despite careful measurements and as much info as I could find on childrens' bike fit, the boy I built the 20" for has not quite grown into his! 😫
    Looking forward to seeing the final build and I hope your young rider gets on with it!

  • in Bikes & Bits
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    Late to the discussion started by @M_V on this but is there any more info on the green bike with front rack, extended headtube and small wheel?

  • in Current Projects
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    The filling in on the gussets is a bit slow going, but this is after 2 or three layers (can't put it in too thick or it will not dry properly and crack, so I have been building it up and sanding it smooth after each layer).

    This is the toptube - downtube - headtube intersection:

    I think that will be good for primer after one more layer of bondo probably. You'll notice some aluminium peeking through around the cable routing inlet on the DT - I ground this down quite a bit, but I didn't want to push it too much as the walls of the actual tubing here are incredibly thin, and I also am not sure if it the chunk of aluminium would have been welded on top of the tubing or into a hole in the tubing... In any case, a slight bulge in this area smoothed out with the filler won't make a difference, especially as it merges into the aero profiling from the head tube.

    The downtube-seattube intersection will likely need a few more layers of filler:

    this one is a bit messy around the area where the front derailleur hanger was (on the ST), and there is quite a bit of smoothing to do between the DT, ST, BB shell and chainstays. Also the gusset comes right up to the tapped hole for the bottle holder, so I am not sure whether to bring the gusset down a bit so it ends smoothly before that, or just go right over it. Since this is meant to be a tarck bike, and not HHSTTB, bottle cage is kind of out of place anyways #amiright?

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    Not amazingly if I am honest. In some larger surface areas it really did blister off the paint quite well so it came off with ease, but I think part of the difficulty was down to the colour changing paint. I have heard this tends to be thicker or something. In the end I had to rely rather heavily on the wire cup attachment to "brush off" the rest of the paint. This actually resulted in more abrasion on the aluminium than I had hoped for, but I should have probably foreseen this.
    If I were doing it again I would probably try to find something to thicken the dichloromethane so it is like a gel (like nitro or something). Alternatively, for a few frames at once, creating a shallow bath dip and just giving them a soaking one after another could be a good approach (anyone want to organise a frame-stripping party? I still have about 4L left!).
    Also note that gloves are ABSOLUTELY NECESSARY. I got some of this on my skin (through two pairs of latex gloves), and it was very irritated!

  • in Current Projects
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    btw @malandro the sourdough is going well:

    and I did get a banneton (as you can see in this loaf):

    Doesn't seem to be as half-baked as the bike! ;)

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