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| EV/DF-300 Dual Motor Plates (Re-Run?) | |
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| Topic Started: Jan 28 2013, 12:08 AM (1,752 Views) | |
| Toyranosaur | Feb 6 2013, 10:41 AM Post #31 |
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Playing with the side plates for 5-wheel conversions. I intend the wheels to have a 1.750 (44 mm.) outer diameter. I have a quote on 1/8" thick rubber tyres, but the min. order is 300 pcs, so 30 sets of wheels, and is about $25 per Bliz just for that, but I'd prefer it to all-metal wheels. Either way, since you lose approx. 10 mm. in overall diameter, that means you lose half that, about 5 mm., in ground clearance. So I moved the suspension mount holes down about 2.5 mm. so total loss of ground clearance will be only about 2.5 mm. total: Pretty fair tradeoff, methinks. Protos soon-ish! Chris REC |
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| ZippoMan | Feb 6 2013, 01:42 PM Post #32 |
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Cool Chris!! You are really getting into this Blizzard mod! Awesome and can't wait to see the protos!!
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| Small Factory | Feb 6 2013, 02:05 PM Post #33 |
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Formally Timmy2Tracks
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That sounds great to me, Chris. It is going to make the Blizzard much more scale... So, are you talking purchasing just tires, and making aluminum wheels? |
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| Toyranosaur | Feb 7 2013, 01:15 PM Post #34 |
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Well, ideally I wanted rubber on 'em, but between costs & the fact that I'm going to have to address the suspension (Which won't work as is w/a smaller wheel as part of the assembly is inside the wheel and has nil clearance already,) the verdict is not in. As usual, things are getting more involved as they progress, which I must balance against how many can realistically be sold: Time in vs. $ out. I love this hobby and want to do all this, but it's worrisome when you're running a small business and must maximize time. Not to harp on this, but except for about half-a-dozen hardcores, it's looking iffy at best..... The 5-wheel thing may just not be doable; The other stuff looks more likely right now. Chris REC |
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| Small Factory | Feb 7 2013, 04:09 PM Post #35 |
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Formally Timmy2Tracks
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The 5 wheel conversion is definitely an ambitious undertaking. Nobody want you to loose money on a thing like this....! 4 wheels certainly are not bad (I know I've said this before) with the right body. Would 4 (8) new wheels that could take rubber be something to consider, if the other parts are successful...? |
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| Toyranosaur | Feb 8 2013, 05:03 PM Post #36 |
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The rubber is likely not going to happen, cost is a big issue but there are other factors. I thought, how hard could it be to find some 1.5" ID rubber hose/tubing with a 1/8" wall or so, & cut some slices? I spent HOURS looking, and everything has the damn reinforcing crap in it that will be visible from the side, & that is substandard. So I got a quote to have 'em made from Timco Rubber, and the price for 300 minimum is $2.59 per band, or about $26 per wheelset, not too awfully bad. BUT, I'd have to get 300 at a shot, which is $777.00 plus shipping, so easily over $800 worth of bands that I may eat half of or more, so you see that's scary for a lil' guy like me. Then there's making the very small ID of 1.5" wheels work without re-designing the whole suspension. Even this morning I thought it would prove too involved, but since then I'm working on a simple part to allow the stock arm to work with smaller wheels, with a 1.75" OD & a 1.63" ID. This part is the one with the stops & spring nubbins- If I am successful, that will put the whole 5-wheel (Per side) thing back on the possible table. It will allow the stock width to be maintained also. By the way, what type of wheel design is wanted? I likey Hot-Rod-type styles, but I doubt most others will. I can offer 2 styles, so you chaps let me know if you like Hot Rod, Stock Heavy Equipment, or something in between (Like the stock Bliz pattern of holes.) Fun Fun! Chris REC |
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| galaxiex | Feb 8 2013, 06:10 PM Post #37 |
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I like HotRod type wheels myself... and while not a big priority for me, I would probably get a set if you decide to make them. |
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| REAPER | Feb 9 2013, 06:48 AM Post #38 |
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"It's only Money"
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For rubber wheels, have you thought about using O-rings? By putting a stack of O-rings you could make a tire and if you are making wheels you would just need a ever so small "lip" so they wouldn't work of the wheel during normal operation. You can get them in a various sizes, thicknesses, round or square cut, and made from different rubbers or silicons. Then this part could be customer bought later down the road to split up the cost and even give them some further customization by using different color, cuts or material. |
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| Toyranosaur | Feb 9 2013, 12:01 PM Post #39 |
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I did consider O-rings, but they aren't cheap either, and I've already designed the suspension part to work with my wheels without rubber. A 1.5 wheel's ID would be about 1.38: Cut in half, that's 1.069 total length. Now the holes, center of tyhe susp. arm to the mounting screw for the wheels would be so close together that the spring rate would shoot WAY up (Less leverage on the spring) and the resultant stiffness means you may as well not even have suspension. These new susp. pieces will only work with my wheels probably, so they'd come as a set. Not sure if stock wheels will work with the 5-wheel plates or not: They might, but then you've not really gained anything much visually or functionally. It takes a lot more thought to re-doing something like this than you'd think! Even the side plates, I'll need to find out if it's made of one of the hardenable grades of Aluminum, which is likely as they are STIFF for their thickness. If so, I'll need to cut 'em, have them hardened, & then anodized- Not as simple as falling off a log for such a simple part. (I really hope they're not needing to be hardened: If so, now you see where the price comes from on a small batch. Re-designing things from scratch, all the drawing & toolpathing, etc. usually means small batches are not practical for me (Or you!) so I'm doing what I can to make these happen-able Gents! Chris REC |
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| Small Factory | Feb 11 2013, 09:46 PM Post #40 |
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Formally Timmy2Tracks
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My head hurts, Chris...
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| Toyranosaur | Feb 13 2013, 12:25 PM Post #41 |
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Mine too Mate! It looks like the 5-wheel project may be back-burner again. I've become a fan of the drive sprochet in the rear as one chap suggested, and with smaller wheels this will havew to happen. This is because to look proper the 5 bogeys will have to be on the same plane (All level.) With the drive in the front, when throttle is applied, the track will be pulled tight between the rear bogey & the drive, at an angle, and look really dumb: Not what you want. So the drive would need to be in the rear, pulling the track & now the top track is unstressed so will drape narurally on the wheels. So, the side plates will need to be redone to acommodate this, which is time-consuming: However, it works well with turning the motors backwards so now you won't need brushless or reverse-rotation brushed motors, I think......Hence the agreement about the head pain! The net job is actually not easy, especially because if I did it I'd want rubber on my wheels so as to do it proper, and the issues just keep stacking up. Not beat yet! Just have to play with it between other stuff.....Chris REC
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| ZippoMan | Feb 13 2013, 01:05 PM Post #42 |
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Yeah Chris we are not in a rush...so take all the time you need! It is great you have the skills to come up with great improvements!! I am a Blizzard fan for life......mine will never be sold unless I am dead..lol |
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| REAPER | Feb 13 2013, 09:13 PM Post #43 |
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"It's only Money"
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I am all for the rear drive idea... that's what I wanted from the start. |
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| Small Factory | Feb 14 2013, 08:36 PM Post #44 |
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Formally Timmy2Tracks
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Glad to hear it can be back burner-ed. Sometimes it is just nice to stop thinking about something and take a break from it, put your mind on something else. I am curious about the drive sprockets. Did ya have any luck finding any chain? |
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| Toyranosaur | Feb 14 2013, 08:46 PM Post #45 |
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Yeah Reaper, when I said 'Someone' mentioned it, it musta been you! I have so many thoughts about the Blizzard, and want to consolidate things so IF parts get made they work with each other. Really, this amounts to a total re-design, since what is really wanted is tyhe DX-type setup drive & looks-wise.Figure, if we end up doing the extra wheel, suspension mod, new side plates, top plate, dual-motor plate, pinion shroud, front-servo steering, Alloy drive parts w/bearings & chain upgrade, I mean, ya might only need an REC kit & few small Bliz parts, ultimately! So, ya see where it can go 3 ways- No parts A few upgrades Or a full-on ChristwhatwasIthinking 'Blizkrieg' (P.S., don't steal that name as it's reserved for my prototype if it goes that far.) Chris REC |
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My head hurts, Chris...
I have so many thoughts about the Blizzard, and want to consolidate things so IF parts get made they work with each other. Really, this amounts to a total re-design, since what is really wanted is tyhe DX-type setup drive & looks-wise.
Or a full-on ChristwhatwasIthinking 'Blizkrieg' (P.S., don't steal that name as it's reserved for my prototype if it goes that far.)
Chris REC
4:36 AM Jul 11