AAAGH! I wasn't expecting that Mike!
 

It arrived today! Yes it arrived only just today (not the slipper but the cd mount). I bought the cd mount asap and then went with standard snail mail. I know it's only a few more dollars for express international but I forgot :oops:

So I mock it up at work after picking it up from the post office and drool on it a bit then tonight I decide to mock up a motor and diff. Hell, why not, lets fit the slipperential!

AAAGH! It doesn't fit! I wasn't expecting that. Did I not read or miss something? I know the 50+ tooth spurs don't fit with out a little dremelling but I honestly thought Mike's slipper will fit Mike's cd mount.

You can see the bearing stops short of the housing

http://www.rc-monster.com/forum/pict...&pictureid=523
http://www.rc-monster.com/forum/pict...&pictureid=524
http://www.rc-monster.com/forum/pict...&pictureid=525

that is very strange..

Hardly strange. The slipperential is small so it can fit the majority of setups with shimming. The cd mount is large to fit with standard diffs.

Mike clearly states that the mount requires some mods fir mist setups and us nit for novices. Just drill another hole in top plate or add shims to both bearings.

Drill another hole in top plate to move upright back for the bearing to get in the hole.

Judging by the distance the bearing has to go, looks like he will have to drill a new top plate hole AND do some shimming on both sides.

Exactly. Smaller diffs like the Slipperential need shimming. I may modify the front mount on the next batch for easier use(I have an idea to make fitting various diff sizes much easier), but the product as it is was meant to be "universal fit" - it doesn't fit any diff specifically, but should allow most every diff with proper shimming. I would suggest shiming both sides of the diff - about 1.5-2mm per side should center it up nicely. If you drill a new top plate hole, the mounting template would be null and void. :)

Perhaps Mr. Monster Mike would consider selling a top plate specifically to fit the Slipperential? :whistle: :yes:

But like Mike said, the actual mount holes in the chassis would need to be re-drilled as well...

If anything, maybe he could make a bearing spacer...

I was thinking from the perspective of a completely custom installation. If someone was making their own chassis and such.

I don't mean it to sound like a whine. I just automatically thought the universal slipdiff would be a direct fit to the universal cd mount.

I do have the nouse to make this work. I was just a little surprised and thought other members might like to know :tongue:

I considered matching the mount to the Slipperential, but didn't want to alienate all those larger diff users out there. The Slipperential is "universal" because its small size allows it to fit where most other similar units(diffs) are installed. The 3 piece motor mount is "universal" in exactly the opposite manner - it is large enough to accomodate the larger variants of the center diff.

Why not make a top plate with an additional mounting hole ~4-5mm back?
Not much meat left to drill a hole to much further back in the original.

The drill template can then have a couple different drill holes depending on the mounting style.

1st gen stuff always has some growing pains, but I lookig forward to the next batch.

It just occurred to me that it wouldn't be too difficult to make a new top plate myself. :yes:

4-5mm would probably be too far back for many diffs - there is less than 4mm difference between most diffs and a 3.3mm hole that is 4mm offset from another 3.3mm hole is practically a slot. :)

The easiest way to modify would be to simply shorten the legs on the existing top plate - I made the legs long enough and drilled and tapped the holes deep enough to allow this as an option. If you remove a known amount and move the mount holes for the front the same amount on the template, you have a smaller package that fits smaller diffs directly. :)

Bare in mind if your going to use the larger spurs, the screws for the top plate from the motor mount run quite close to the spur.

Ah, beat me to it... This was my suggestion as well, I just wasn't aware of how deep the holes are on the top plate and if there were tapped all the in.

:yipi::yipi:

Hmm... yea, I'm not sure how much shorter your slipperential is, just a guestimate based on the pix and the shim recc's.

The other idea would be to make a second set of mounting holes offset from the first. It would be a bit more of a pita, as the F diff mount would need more work, but could span a range of sizes from the long diffs, to shorter ones like the SlipDiff w/o tons of shims.

IDK, just a thought. I'm sure you will come up with something clever. :)

Here's a crappy pic of what I mean.

^^^ and that would be it lol

can anybody link to shims to center the diff in the mount? They nhave to be narrow enough to allow the drive cup to pass through and I can't find any

Maybe use a 16mm OD o-ring as a shim.

I used these.
http://casterracingusa.com/product.p...7&cat=0&page=1

Thank you!:yes:

Mike, do you have the dimensions on the slipperential? Ie. bearing to bearing distance? I'm doing a custom chassis and plan on using the slipperential. Would be very beneficial to have this info prior to machining........

You could also make the top plate shorter and have a few different spacers included to space out for longer diffs?

Seems easy enough to just cut the "legs" of the top plate to distance needed; I like it.

Thats what the big man suggested

Hey Harold, this link doesn't work anymore. What do I need? Linky?

Thanks,
Zach

You need 13x16 shims. Here's some on the bay> http://www.ebay.com/itm/Kyosho-13x16...item3383e5d17b