Build Thread D3MON's D-28 Drift

[CertifiedMike]

They just don't make dollar store files like they used to, you know, like seven years ago.

Seven years ago it was the 'Dollar Fifty Store'.

 

[D3MON]

It still blows my mind that ppl are building their own RCs at home from self-printed parts!
Awesome build so far!
Good luck testing!

agreed, kind of crazy thinking back to days of people building the stick chassis Clods and hardware store sheets and tubes of aluminum and what people could do with that and the limitations, then to now where there are almost no limits with both combined.
Thank you!

Seven years ago it was the 'Dollar Fifty Store'.

lol ain't that the truth.

 

[HPIguy]

yeah good call! think in the file going to fillet so it looks like this:
View attachment 273770
just going to file it rounded on the one i already printed.


oh that is funny timing. you going to post some pics in your build thread? would be really curious to see it!


Speaking of filing things, having my first casualty of the project. One of the files in the cheap dollar store file set i got 6 years ago is starting to die. Really sucks as its my favorite file lol.

Yeah, I'll definitely update the thread, waiting on a couple other parts also, and doing some 3D print testing with it also.

Dammit, now you got me worried. I have this tiny diamond file set I've had for about 10 years, no clue where I got it. Hope they continue to perform.

 

[D3MON]

Yeah, I'll definitely update the thread, waiting on a couple other parts also, and doing some 3D print testing with it also.

Dammit, now you got me worried. I have this tiny diamond file set I've had for about 10 years, no clue where I got it. Hope they continue to perform.

ok cool!

lol mine is starting to lose teeth and most are getting really rounded over, especially in the patch where i usually file in. I'm sure all the screws, bolts, and random bits of steel hasnt helped its lifespan

 

[D3MON]

Work finally slowed down enough where i can take some time to work on this again
Well, i thought i was done so started making a quick vid and started building a second one taking pictures along the way as some sort of pseudo instructions...

BUT, I found a few things i wanted to adjust.

First is the rear hub carriers.
Originally due to how i designed the lower a-arm connection point to the hub carrier it limited camber at ride height to 3 degrees, anything past full droop it would go positive camber.
Lowered connection point 0.5mm to allow more articulation. this does reduce ground clearance in back, but not enough to worry about.

Second the rear shock tower.
with the exact shocks i and standoffs i designed it for it worked perfect, but any other variation the shock could bind on itself as the top shock mount was mounting rear of the shock/chassis and the lower was to the front of the shock/chassis.
Incorporated the top shock mount tab into the trans case. took a page out of some 1/10 drifters I've seen and did an angled plate on the back "bumper" to mount the ESC, revised the location for the body mount posts to sit.
This opens up versatility for larger ESCs, and different shocks as desired.

Currently finishing up printing the front assembly and taking pictures along the way.
will need to order another set of rod ends, i am really happy with the Micro T ones i found for this.

 

[WickedFog]

Work finally slowed down enough where i can take some time to work on this again
Well, i thought i was done so started making a quick vid and started building a second one taking pictures along the way as some sort of pseudo instructions...

BUT, I found a few things i wanted to adjust.

First is the rear hub carriers.
Originally due to how i designed the lower a-arm connection point to the hub carrier it limited camber at ride height to 3 degrees, anything past full droop it would go positive camber.
Lowered connection point 0.5mm to allow more articulation. this does reduce ground clearance in back, but not enough to worry about.
View attachment 275646

Second the rear shock tower.
with the exact shocks i and standoffs i designed it for it worked perfect, but any other variation the shock could bind on itself as the top shock mount was mounting rear of the shock/chassis and the lower was to the front of the shock/chassis.
Incorporated the top shock mount tab into the trans case. took a page out of some 1/10 drifters I've seen and did an angled plate on the back "bumper" to mount the ESC, revised the location for the body mount posts to sit.
This opens up versatility for larger ESCs, and different shocks as desired.
View attachment 275647
View attachment 275648

Currently finishing up printing the front assembly and taking pictures along the way.
will need to order another set of rod ends, i am really happy with the Micro T ones i found for this.

Amazing job man!

 

[Doom!]

This is still one of the coolest projects ever!

 

[D3MON]

Amazing job man!

This is still one of the coolest projects ever!

Thanks you guys!

definitely slow going lately, just haven't had as much energy that and its down to the fine tuning so really slow going

 

[D3MON]

got everything re-printed and ready to go, just need to get another set of rod ends for install and go through 50+ pictures to put in order and label for somewhat of a build guide.
As always ran into another area that could change on the builder's choice which is the servo horn. From all the research I've been able to do and data sheets available, there are 4 different arrangements for typical mini-drift servo horns with different depths and tooth count. Had to make a few alternate versions of the servo horns to accommodate.
Unfortunately the ECOpower servo i have seems to use even a more slightly different body which is going to require changes to the servo sliders as well as servo horn, I think i am going to Omit for now as that one doesn't seem typical to the drift world (at least what i could find on gt55), so would be my case only. Eventually might do it just in case anyone else would happen to have that size servo.

(you can see in the pic below its not attached to the chassis, mostly there as a representation)

As I'm nearing the end of this build and reflecting, i find it quite funny that the only reason i even attempted this was hinging on if this single gearbox would even turn even semi-smooth or not! definitely glad it did!

Will be back with updates once the rod ends are installed and i transfer the electronics over.
Really excited to get some CF sheets and replace what i can (chassis plates, RX tray, ESC tray, motor mount), really hoping my brother in law gets his mini CNC up so i am not hand cutting it though lol