Making some drivers

All about RESIN CASTING! Share your work and tips to help others here.

Making some drivers

Postby HomeRacingWorld » Sat Jul 02, 2016 9:08 pm

Or as my Grandson says: "Dudes".

I took the Monogram classic NASCAR driver to start. I prefer a "half tray" type interior, so I needed to modify him. I trimmed off the bottom and removed the arms.

I then sanded the arms flush so I could adjust them where I wanted. I super-glued them and filed as best I could to conform them.

Finally I added some Squadron green putty to fill the seams.

Image

As a final coat, I sprayed primer and sanded with 1000 grit where I could. Then a good coat of clear gloss to seal.

Image

To make sure we had a flush base, I used a old paint brush and brushed some resin on our setup board. Then pressed the driver into it. This created an almost perfect base.

Image

When dry we trimmed away the excess and we were ready to make a mold box and pour our silicone.

Image

Our goal was to try and create a mold that did not need a second part, or needed air pressure. Not everyone has a tank and thought we could make it work.

We poured the resin and used a toothpick to "poke" the resin up into the hands and to remove the air bubbles inside the head. We then tilted the mold slightly towards the hands as the resin has to go over the elbows and back into the hands.

Image

Here is my master caster grandson inspecting his work. Yes, looks dry :)

Image

And it came out ok. Now we can more for our future builds.
User avatar
HomeRacingWorld
HRW Janitor
 
Posts: 15569
Joined: Wed Aug 08, 2012 2:05 pm
Location: HRW Skunkworks

Re: Making some drivers

Postby dreinecke » Sat Jul 02, 2016 10:15 pm

Looks pretty good to me! Glad to see Cameron is keeping you on track and out of trouble. Make sure you punt him off the track for me - I still owe him!
User avatar
dreinecke
King of the Dum-Dums!
 
Posts: 7360
Joined: Wed Aug 08, 2012 5:39 pm
Location: Colorado

Re: Making some drivers

Postby munter » Sun Jul 03, 2016 1:14 am

great stuff
User avatar
munter
HRW SlotCar Veteran!
 
Posts: 1014
Joined: Thu May 16, 2013 11:18 am
Location: New Zealand

Re: Making some drivers

Postby dge467 » Sun Jul 03, 2016 5:56 am

That looks great!
User avatar
dge467
The King of Foil
 
Posts: 3636
Joined: Tue Sep 04, 2012 9:07 pm
Location: N.E. Massachusetts

Re: Making some drivers

Postby mattb » Sun Jul 03, 2016 7:01 am

That really soft Alumilite rubber is good for a one piece driver mold. I find that getting the hands full is usually the hard part. Sometimes you can use a sharp exacto and open up the arm and hands opening. You don't cut all the way thru the mold to the outside, just cut the opening so you can spread it apart, fill it and then let it go back to it's natural shape. If this makes the mold too flexible, you can put a rubber band around it. Sometimes it is better to just cut your mold all the way thru with just a "hinge" left at the bottom or on the bottom and a side. Use a rubber band to keep it closed after pouring it full. I can dig out some stuff and put up a couple pix if needed.
mattb
HRW SlotCar Veteran!
 
Posts: 1091
Joined: Tue Sep 09, 2014 4:11 pm

Re: Making some drivers

Postby HRWJim » Sun Jul 03, 2016 8:20 am

They look really good. Nice work
User avatar
HRWJim
HRW SlotCar Veteran!
 
Posts: 882
Joined: Mon Sep 03, 2012 8:03 pm

Re: Making some drivers

Postby waaytoomuchintothis » Sun Jul 03, 2016 12:39 pm

The Dude abides... (your grandson will understand it- take my word for it, its very funny.)
User avatar
waaytoomuchintothis
"Seasoned SlotRacer"
 
Posts: 7576
Joined: Wed Aug 29, 2012 7:16 pm
Location: Chesterfield, Virginia

Re: Making some drivers

Postby HomeRacingWorld » Sun Jul 03, 2016 2:10 pm

My grandson better not :) Now myself and my oldest son? Of course.
User avatar
HomeRacingWorld
HRW Janitor
 
Posts: 15569
Joined: Wed Aug 08, 2012 2:05 pm
Location: HRW Skunkworks

Re: Making some drivers

Postby RazorJon » Sun Jul 03, 2016 2:52 pm

dude! great job on the dudes
User avatar
RazorJon
Tire Razor Guy
 
Posts: 2419
Joined: Thu Aug 30, 2012 10:51 pm
Location: Union Missouri

Re: Making some drivers

Postby Z-carfan » Sun Jul 03, 2016 3:27 pm

Dude....

Looking good.


Sent from my iPad using Tapatalk
User avatar
Z-carfan
HRW SlotCar Veteran!
 
Posts: 1961
Joined: Tue Mar 24, 2015 9:10 pm
Location: Galena, Oh USA

Re: Making some drivers

Postby TuscoTodd » Tue Jul 05, 2016 8:45 am

Great tutorial and results!
:text-bravo:
User avatar
TuscoTodd
HRW Bouncer
 
Posts: 7145
Joined: Sat Aug 17, 2013 11:25 am
Location: Rural Ohio

Re: Making some drivers

Postby Broman62 » Tue Jul 05, 2016 10:30 am

Priceless family time and that came out awesome looking...nice work!!
User avatar
Broman62
HRW SlotCar Veteran!
 
Posts: 1780
Joined: Wed Sep 05, 2012 6:29 pm
Location: NE Ohio

Re: Making some drivers

Postby eAddict » Thu Jul 07, 2016 3:55 pm

I am really surprised these haven't been scanned/created and then uploaded to a 3D printing site like shapeways. Then you can get them printed at whatever scale you need. If I only had the talent...
eAddict
 
Posts: 62
Joined: Wed Sep 05, 2012 5:47 pm

Re: Making some drivers

Postby HomeRacingWorld » Thu Jul 07, 2016 5:06 pm

And then they would cost much more too. And that ability to use CAD/Software is of course the big stumbling block for many.

But yes, anyone with those skills could easily do this and make them available.

In this case, it's just fun to create and produce by hand.
User avatar
HomeRacingWorld
HRW Janitor
 
Posts: 15569
Joined: Wed Aug 08, 2012 2:05 pm
Location: HRW Skunkworks

Re: Making some drivers

Postby Retro Racer 44 » Thu Jul 07, 2016 7:17 pm

I have a couple of driver moulds that I use with the slow curing JB Weld epoxy. I tried this with fast epoxy, but it is not fluid enough. The slow setting type works best.

To make sure the resin gets to the bottom, I squeeze the mould between my fingers and then release it again. I do this from different directions. The resin bulges up when I squeeze and usually there is a bubble or two that pops when I relax the squeeze.

When the driver is hard and out of the mould, I slide him back and forth over a sanding block to level the bottom.

I know the resin is probably better, but it gets old before I can use it all up. That makes the epoxy a better option, at least for me. If you do end up with a bubble, you can always fill it with modelling putty.

Keith
Retro Racer 44
HRW SlotCar Veteran!
 
Posts: 1385
Joined: Mon Nov 18, 2013 4:37 pm
Location: Maple Ridge, BC, Canada

Next

Return to HRW Body Shop



Who is online

Users browsing this forum: No registered users and 11 guests

cron