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Thread: Dag's 1978 Volvo 245 dl estate

  1. #11
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    Oh boy....a styrene scratch build!!! Going to enjoy this!!! Well documented so far, looking forward to this!

  2. #12
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    Feb 2014
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    Hey dagabba! That is a nice project idea and I like that chassis layout too! I will be following along for sure.


    Quote Originally Posted by dagabba View Post
    Up front sadly I don't think there's going to space for a Macpherson Strut- I'd need to fit in a very small damper above the hub. However, double wishbone is pretty close and allows me to mount the damper on the lower arm.

    So, more bits are on their way... please share hilarious Volvo/tank/boat stories and any pics or technical knowledge!

    Maybe you saw my build where I made a MacPherson front suspension, with M chassis wheels. If you use the right rod ends it can be pretty small. I used some old Losi threaded shocks and grinded off the head. In my case I made a straight 2 ended links, and a secondary link that attaches to the middle of that one to triangulate on the chassis:








    I wanted to see how the front suspension arms are on your car, only pics I found are those, looks to be really a 3 point arm, and not links like I did on the Escort, but it probably clears less space for the steering links that way:


    https://people.physics.anu.edu.au/~a...andling_V2.htm




    On that same page, I see pics of a guy's Volvo build who also put Watt's linkage just like my Escort lol!




    Is the factory setup with a regular panhard bar? Like in this white schematic? If so this is likely the radius arm setup you are talking about, with the shocks attaching to the rear end of the arms?







    Very interesting subject! Can't wait to see some new progress!

    Fred

  3. #13
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    Dec 2017
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    Quote Originally Posted by joe122 View Post
    Oh boy....a styrene scratch build!!! Going to enjoy this!!! Well documented so far, looking forward to this!
    Thanks Joe!! I need to try a US/Custom one day...

    Quote Originally Posted by Frederik View Post
    Hey dagabba! That is a nice project idea and I like that chassis layout too! I will be following along for sure.

    Maybe you saw my build where I made a MacPherson front suspension, with M chassis wheels. If you use the right rod ends it can be pretty small. I used some old Losi threaded shocks and grinded off the head. In my case I made a straight 2 ended links, and a secondary link that attaches to the middle of that one to triangulate on the chassis:

    I wanted to see how the front suspension arms are on your car, only pics I found are those, looks to be really a 3 point arm, and not links like I did on the Escort, but it probably clears less space for the steering links that way:

    On that same page, I see pics of a guy's Volvo build who also put Watt's linkage just like my Escort lol!

    Is the factory setup with a regular panhard bar? Like in this white schematic? If so this is likely the radius arm setup you are talking about, with the shocks attaching to the rear end of the arms?

    Very interesting subject! Can't wait to see some new progress!

    Fred
    Yes Fred, absolutely love your escort and I've been rereading the thread for ideas. First point- I'm afraid my chassis won't be anything like as nice as yours, I can't weld steel for a start so it's all going to be Aluminium stock- it'll probably look like an Audi hehe. Also planning to do it as a lower skeleton- the styrene will fill in the rest.

    However, I'd like to get the suspension close if possible. Since I didn't get underneath the car when I was little I'm trying to do the research now... up front I agree, looks like a lower wishbone with the strut on top. Main job here will be machining nice hubs like yours, I'll give it a go. I'm also going to try using M-chassis shocks as they're small and readily available.

    In the rear, yes, I think it looks exactly like that schematic- radius arm/panhard/torque arm. Found a nice vid of someone replacing the bushings- that should work out ok.

  4. #14
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    Dec 2017
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    So here's some actual progress...

    Got some bits in the post, pretty much sorted for a scale driveline now- RC4WD R4 up front, SSD AR44 in the rear.

    20200612_122036.jpg

    You might notice the rear axle is a bit narrower now. Got hold of a diamond axle and two offset front axle sets, now I've got a few different widths to play around with (though I'll probably swap the diff housing for something more stock...)

    20200612_121636.jpg

    And you can also see I've got the blueprints printed at the correct scale after many tries... here's the process I use for cutting the body. Tape the blueprint onto a sheet of styrene, then start carving.

    20200612_145253.jpg

    Using 2mm to create a strong structure so I've given up trying to cut through the whole thing at once, just cut through the paper and score the styrene underneath.

    Window and door removed:

    20200612_150013.jpg

    All cut out:

    20200612_150828.jpg

    And here I've cut away the shape:

    20200612_154259.jpg

    Back half done too, here's one side before shaping:

    20200612_224236.jpg

    Cheers all!

  5. #15
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    Jun 2016
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    Very good start!


    Wes

  6. #16
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    Nice start on the first cut pieces! And the axle looks to have nice proportions in your last mock up. It looks like you really need much bigger wheels though! Can you measure the outside tire diameter in your blueprint, and also the wheel diameter? Just to see what kind of tires and wheels could fit nicely.

    If your blueprint is fully scale, it looks like you need wheels that are about as big as your mini tires outside diameter (which are 55mm type) so I guess about 2.1 inches wheel?


    Edit: looks like the wheels are a bit big in your schematic, compared to this googled side view pics:

    Edit #2: Maybe the wheels in your blueprint is ok after all! It looks like it is the wheel arches that are too small, especially in the front.




  7. #17
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    Quote Originally Posted by wesmade View Post
    Very good start!


    Wes
    Thanks Wes!

    Quote Originally Posted by Frederik View Post
    Nice start on the first cut pieces! And the axle looks to have nice proportions in your last mock up. It looks like you really need much bigger wheels though! Can you measure the outside tire diameter in your blueprint, and also the wheel diameter? Just to see what kind of tires and wheels could fit nicely.

    If your blueprint is fully scale, it looks like you need wheels that are about as big as your mini tires outside diameter (which are 55mm type) so I guess about 2.1 inches wheel?


    Edit: looks like the wheels are a bit big in your schematic, compared to this googled side view pics:

    Edit #2: Maybe the wheels in your blueprint is ok after all! It looks like it is the wheel arches that are too small, especially in the front.
    Yes, those wheels are place-holders right now. Size-wise, the pics are slightly misleading- it's hard to show how things relate exactly as the foreground/background distorts a bit. However, the wheels are pretty much exactly the same size. I need to have a good look through the M-chassis wheel options for something more Volvo-ey. Tyres are quite a lot bigger- there's a tall side wall which you don't see a lot in on road RCs. I think they might be a touch large in the blueprint... but I'm looking for something around 70mm diameter. As you can see in the driving pic you posted, especially at the rear, large tyre/small wheelarch works because it's actually recessed a fair way. If I can get the track width spot on this should work for me too.

    Need to do some more cutting out tonight... Body is going to happen first, then I'll try to make the chassis fit, should be easy to slightly reprofile the arches at that point if necessary.

    Edit: just did some more measuring and calcs and actually I think you're right, the schematic wheels/tyres are too big. This has me questioning the whole thing but the body measurements all seem to be correct so hopefully it's just a wheel issue. Stock, the tyres should be 185/70/14 which is exactly a 1.55 with a 68mm tyre. So far I've got a couple of options- I could stretch a smaller off road tyre round a 1.55 or M rim, or... these guys are a tiny bit big but are super narrow with a nice tread pattern, 1.7 is around a15 inch rim which could also work:

    Screenshot_20200618-130531_Chrome.jpg

  8. #18
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    Feb 2014
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    Quebec, Canada
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    There is also those big rig racing tires that use tamiya M mini wheels, but bigger sidewall, I have some and they measure 2 13/16 diameter. I will snap some pics mounted on M wheels I have here (I have a good variety of M wheels models I can show you later too):


  9. #19
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    Here it is compared to a M tire and wheel on the far right (a 60mm diameter tamiya slick which is already 5mm larger diameter than your current 55D), and also compared to a regular touring car diameter with the gold wheel, second from left (this is an HPI vintage tire on some aftermarket wheel). The gold wheel makes the fake taller sidewall look, even though the wheel inside is really regular touring car diameter.



    [IMG][/IMG]

  10. #20
    Join Date
    Nov 2018
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    40

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    This will be cool for sure!

    One option for front shocks if you go with the scale suspension is Gmade RSD 67mm shocks. I'll be using those with my Hakosuka build.

    http://junfac.com/product/gmade-rsd-...163/display/1/

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