Delrin thickness ?

[SpeedFreak675]

I want to make my own body less chassis for my moa losi out of delrin. I was wondering what thickness to use to get proper strength. I was thinking of using 3/16", but thought i'd ask before i order.

Also, is 1/4" think enough for lower links, or should i go bigger? Thanks

[456heinbach]

most chassis' are 1/8" delrin and for lower links are you talking about solid rod or sheet delrin? For round rod delrin I use 3/8", some people use 5/16"; if you're using flat sheet delrin I don't know but would think 1/4" is a little thin.

[SpeedFreak675]

it will be solid delrin rod for the links.

[constantmotion]

I have used 1/8" and it works just fine.

[scouperacer]

Originally Posted by constantmotion

I have used 1/8" and it works just fine.

For the links? I used 3/8 (probably overkill) I think 5/16 would be just as well off. As far as the chassis 1/8 or 1/4 should suffice.

[LaughingLarry]

I had been looking for the thin delrin sheet listed here, and was having no luck. After searching and thinking I found it, most places say they carry it, I would call, and they would say 'it is on back order' or some other lame excuse. I finally found Industrial Plastic, and they had it in both Black and White. And they had it in big sheets - like plywood size. You need to call, it is only on their site as small pieces. Yeah.
Thought you would want to know.

[crawlhog]

i used 1/8 for my chassis and its been running strong for a year. as for the links my BULLY has 5/16 and my SCX10 has 1/4. try McMASTER CARR for the sheets and rods , nice variety to choose from

[C*H*U*D]

I wouldn't use 1/4" for your links. I use 5/16" on my 1.9 SCX scaler and have bent them under a few times from the torque of the tires. A 2.2 Comp with front and rear dig is asking for trouble with anything less than 5/16...in fact I'd go bigger.

[Man of 5lay]

I just made a bodyless upper chassis for my GC3A last night. Made it out of a $2 cuttingboard from Walmart. Used a cutoff wheel to get a general shape to it, then tried to get the details with an air sander. A few pictures:

Hoped to look like:



Outcome:





Thickness:



Hope this helps!

[Charlie-III]

For a 2.2, I would use 1/8th" for the upper and 5/16th"+ for links.
I use 1/8th" Lexan (the brand name, not just "clear polycarbonite sheet") for uppers.
For both Lexan & Delrin, keep the outer edge to cutout/window dimension 1/4"+. Also try to get "posts" from outer edge to screw mounting lined up so you have better force transfer when you're upside down.

[RCROCIN']

Using Flat Delrin sheets for lower links (like the T1E ones below) works a lot better then using round stock. The 5/16 round stock will flex a little bit more then I personal liked even more so if you bend it. The 5/16 Round will work for uppers though. As stated above the ones below are made by T1e and are relatively cheap. If you are going to make them I suggest doing so with a scroll or band saw as it is a pain to do with a dremel. Trust me I know from experience

[GEN]

3mm/ 1/8" Acetal POM H (delrin(R) for the chassis sides should work fine.

Make sure its the H (High Density) sheets u get.