Recent content by splicetrike

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    Trike hinge design?

    "One does not simply..." :) Thanks to all. It takes a village!
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    Trike hinge design?

    Yes, what you said (that I'd said). In my lazy way of using CAD programs I don't know very well, a model that has one wrong displacement still can save a lot of work. Onshape is parametric, so I should now be able to just edit the X and Y displacements of that hinge -- maybe -- my acquaintance...
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    Trike hinge design?

    Popshot, that's encouraging. I think I will do it just like that, at first! Also, toward the future, the mechanical engineer who taught me an intro to Onshape (browser-based, free for hobby use, 3D CAD comparable to Solidworks) has replied to my query to him, with a simple model on which to...
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    Hubs suitable for disc brakes on trike front wheels?

    What have you found that's affordable and available? Looking for disc-brake hubs for thick axles for trike front wheels, I came upon Specialized p.series 36-hole front hubs, on clearance in many online shops (found through Google Shopping) for about $30 each. I ordered two. Dealer said...
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    Trike hinge design?

    Popshot, I suspect at least two axes of the 3-D hinge rotations reported by DannyC (6/45/? degrees) and Emma/Twinkle (8/50/12 degrees) were meant as tweaks to get the wheel to end up in the right place, for precisely the reasons you just explained. The simplest 45-degree hinge would put the...
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    Trike hinge design?

    I realized part-way through that my plan to use a 26" rear wheel would also complicate folding. Emma pointed out that her ICE trikes have 20" rear wheels and maybe her Project X does too I am considering just using the implicit "hinge" of the StreetFox rear suspension to shorten the bike a bit...
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    Trike hinge design?

    Yes, that is very helpful. Thanks, Kevin!
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    Trike hinge design?

    Thank you very much, DannyC! Thanks also to Emma, who by email just now provided me with her measurements. She didn't have her "Project X" trike with her, and she took measurements (or estimates, I'm not sure) from an ICE trike. They are pretty comparable, as expected. Emma estimated: 8...
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    The Marengo "Loki" Thread.

    If you get around to it, I'll be grateful for the result. In studying the photos of the ICE rear end that Emma sent me, it seems like what you say is possible. Perhaps I was confused by the camera angle in ICE's video. (I am never quite confident that I am processing visual information...
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    Trike hinge design?

    Good idea! So I just did post one. Can't hurt to ask. However, where I live, when I post on Freecycle asking for anything of value, I've been offered bikes of the quality that our local nonprofit cooperative bike shop won't even accept (because they have to disassemble them before they sell as...
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    Trike hinge design?

    If I do see a cheap or free folding bike, I would love to take a hinge from it, as you suggest, Popshot. Also, if anyone has one and wants to offer me one, I hope to hear from them! I do see the main challenge as to determine the orientation of the hinge. As I may have mentioned, I could...
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    Trike hinge design?

    I'm getting some answers from Emma/Twinkle and from DannyC. in other threads. By the way, I think that, while fabrication (if not installation) of a suitable hinge is beyond my skill level at the moment, especially as during COVID lockdown I do not have my normal access to my local volunteer...
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    The Marengo "Loki" Thread.

    As I describe in another post (a new thread on trike hinges), I've identified the main challenge as to determine the orientation of the hinge plate. It seems to be rotated in two or three dimensions.
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    The Marengo "Loki" Thread.

    Emma, will you please email that to me? I just emailed you from my Gmail account; you can reply to that, if you will.
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    The Marengo "Loki" Thread.

    Excellent! I have a Solidworks license myself. I joined the Experimental Aircraft Association (on the order of US $25 for a year membership) just to get it. I don't know it yet, but I could import and study a model if you have access to John's files. My understanding is that Onshape can do some...
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