RCCrawler Forums

theblackmonky · 08-30-2009, 04:27 PM

is there any tricks? should i use aluminum or something else? thanks for your help

constantmotion · 09-01-2009, 07:32 AM

What kind of chassis are you trying to build....Scale, TVP, Tuber?

adale4130 · 09-02-2009, 08:38 PM

i've decided to try to build a chassis also.. 2.2 crawler. I have opted to go with delrin. I just ordered .125" delrin sheet, just waiting for it to come in. The reason i chose delrin is, I think it will be easier to work with vs. aluminum. Im going to be using mostly hand tools to build it. If all goes well i will be posting a thread about my build. Wish me luck.

Dirtydids · 09-03-2009, 01:09 AM

i went with aluminum for my 2.2 it came out pretty clean. tho it was a bit of a pain cutting the aluminum even with a dremel. if you have a band saw itll make your build cake. id have to agree with the post above me and say derlin might be alot easier with strictly hand tools.

gunnar · 09-05-2009, 09:07 AM

Quote:

Originally Posted by adale4130

i've decided to try to build a chassis also.. 2.2 crawler. I have opted to go with delrin. I just ordered .125" delrin sheet, just waiting for it to come in. The reason i chose delrin is, I think it will be easier to work with vs. aluminum. Im going to be using mostly hand tools to build it. If all goes well i will be posting a thread about my build. Wish me luck.

Be prepared to use a few stiffening braces if you will be building with 1/8" delrin. Depends on how you design the side plates of course. Also a good idea to keep any holes away from edges, as they might crack through. This chassis was made from 3/16" and it needed braces all over it to give it strength.

rmdesignworks · 09-05-2009, 09:50 AM

you will definitely want cross bracing in a Delrin chassis unless you are making a torsion style where the side plate are part of the suspension...Axial makes posts and threaded pipe with M3 threads in different lengths so you could easily cut your skid plate to the same width as like their 60mm pipe then just add 3mm holes and bolt the chassis plates together...you will need a thicker material for the skid plate though unless you notch the side plates and sandwich the skid between the plates,,if you want to bolt the side plates to the skid you need a piece of .250" Delrin or other material for the skid then end mill the skid edges to accept the side plate bolts..

Aluminum will defintely take alot of abuse,,but is defintely harder to work with using hand tools,,I use 0.250" 6061 T6 for the skid plates and 0.1875" 6061 T6 for the side plates and 0.250" 6061 T6 Rod for cross bracing,,,,very rigid,,,very strong,,,open milling the sides still gives alot of strength but greatly reduces weight...I have plans to do at least one chassis with Delrin but it will probably be side plates and skid in Delrin and Aluminum bracing, all M3 hardware

jsowens · 09-06-2009, 09:57 AM

Quote:

if you want to bolt the side plates to the skid you need a piece of .250" Delrin or other material for the skid then end mill the skid edges to accept the side plate bolts..

i'm planning on building a delrin chassis also. planning on doing my skid out of a cutting board approx 1/4'' thick, side plates in delrin, and a mix of aluminum and delrin cross bracing. what do you mean by end milling the skid edges for the side plate bolts?

SaxtonSlaughter · 09-08-2009, 08:48 PM

I used 1/4" Delrin. Easier to work with.You won't have to worrier about chase twist ether. I made this one with a table saw and band saw. PS: Use caution when making the chase with these tools!!! Name: Picture 041.jpg
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GOOD LUCK BUD!

rmdesignworks · 09-08-2009, 09:02 PM

Quote:

Originally Posted by jsowens

i'm planning on building a delrin chassis also. planning on doing my skid out of a cutting board approx 1/4'' thick, side plates in delrin, and a mix of aluminum and delrin cross bracing. what do you mean by end milling the skid edges for the side plate bolts?

what i should have said was to drill and tap the edges of the skid, sorry i always think of end mills when doing edge pieces,,you will want to use a bottoming tap though so it runs threads all the way to the bottom of the holes you drill

jsowens · 09-08-2009, 09:26 PM

rmdesignworks, thanks for explaining that. makes a whole lot more sense now.

SaxtonSlaughter, that's a really nice chassis you made. i'm using primarily hand tools for my chassis build...aside from a drill and maybe a dremel. i'll be cutting it out using a jeweler's saw. i recommend people considering making a chassis out of delrin and using hand tools to consider a jeweler's saw. mine cut through the skid material like it was nothing.

C*H*U*D · 09-09-2009, 03:54 PM

Another option to drilling and tapping the skid, is to make the holes for the skid, the same as those for your lower links. That way the bolt holds the side plates, skid and lower link ends all together....eliminates a few steps, and some extra hardware:

badnuz · 09-12-2009, 04:25 PM

holy fricken craop dude that skid plate is wicked

rmdesignworks · 09-13-2009, 12:27 AM

not to hijack your thread but,,,Juan is that your chassis? real nice set up!

xirtic · 09-13-2009, 07:19 AM

I have been making Delrin parts for my crawlers for the past year or so...including custom Delrin sleeved links, custom inverted steering servo brackets, and battery trays. I was using a Dremel for all of this, but recently I purchased a 4" Diamond Bladed mini table saw and a Dremel Scroll Saw. With these, I felt empowered to attempt my first chassis. I have wanted to try a TVP Bodiless design, and for the past few weeks I have been sketching on graph paper...then dropping it into SolidEdge on the laptop. Well, yesterday I cut it. I think that for a first attempt it turned out well. Delrin definitely is easier to work than aluminum...it helps to build confidence and thus allows people to try things that otherwise would feel out of reach. PLUS, it is not expensive in case you goof up. Well, here are a few pics.

rmdesignworks · 09-13-2009, 07:30 AM

Josh,,the chassis looks really good..fluid lines..looks strong,,what type of axles are you using? are using Delrin for the skid too?

did theblackmonkey forget his login,,,? are you still in this tbm?

xirtic · 09-13-2009, 07:57 AM

Quote:

Originally Posted by rmdesignworks

Josh,,the chassis looks really good..fluid lines..looks strong,,what type of axles are you using? are using Delrin for the skid too?

did theblackmonkey forget his login,,,? are you still in this tbm?

Yes...The bottom chassis dimensions match the skid skid/aluminum chassis that I am currently running on that truck...so it is just going to move from the current truck/chassis to this one. The rig that this chassis is going onto is a Bully. Been running it with a traditional TVP...but wanted to go bodiless.

rex cars · 09-13-2009, 11:52 AM

Quote:

Originally Posted by C*H*U*D

Another option to drilling and tapping the skid, is to make the holes for the skid, the same as those for your lower links. That way the bolt holds the side plates, skid and lower link ends all together....eliminates a few steps, and some extra hardware:

clean and simple chassis idea, points deducted for improper use of beer

C*H*U*D · 09-13-2009, 02:50 PM

Quote:

Originally Posted by rmdesignworks

not to hijack your thread but,,,Juan is that your chassis? real nice set up!

Quote:

Originally Posted by rex cars

clean and simple chassis idea, points deducted for improper use of beer

Yeah, that's actually Rev B from my "Frustration Chassis" thread, linked in my signature. It's a good example of just making "something/anything" to get started, and then test and incorporate your changes as you go.

I need to design a chassis holding device so that I can use my beer for more important things

.

08-30-2009, 04:27 PM	#1
theblackmonky Pebble Pounder Join Date: Sep 2006 Location: charlotte Posts: 119	trying to make a chassis is there any tricks? should i use aluminum or something else? thanks for your help

09-05-2009, 09:50 AM	#6
rmdesignworks I wanna be Dave Join Date: Jan 2006 Location: ...the burning end of the rope. Posts: 5,013	you will definitely want cross bracing in a Delrin chassis unless you are making a torsion style where the side plate are part of the suspension...Axial makes posts and threaded pipe with M3 threads in different lengths so you could easily cut your skid plate to the same width as like their 60mm pipe then just add 3mm holes and bolt the chassis plates together...you will need a thicker material for the skid plate though unless you notch the side plates and sandwich the skid between the plates,,if you want to bolt the side plates to the skid you need a piece of .250" Delrin or other material for the skid then end mill the skid edges to accept the side plate bolts.. Aluminum will defintely take alot of abuse,,but is defintely harder to work with using hand tools,,I use 0.250" 6061 T6 for the skid plates and 0.1875" 6061 T6 for the side plates and 0.250" 6061 T6 Rod for cross bracing,,,,very rigid,,,very strong,,,open milling the sides still gives alot of strength but greatly reduces weight...I have plans to do at least one chassis with Delrin but it will probably be side plates and skid in Delrin and Aluminum bracing, all M3 hardware Last edited by rmdesignworks; 09-05-2009 at 09:58 AM.

09-08-2009, 08:48 PM	#8
SaxtonSlaughter Rock Crawler Join Date: Feb 2009 Location: On the "ROCKS" Posts: 571	. I used 1/4" Delrin. Easier to work with.You won't have to worrier about chase twist ether. I made this one with a table saw and band saw. PS: Use caution when making the chase with these tools!!! GOOD LUCK BUD!

09-13-2009, 07:19 AM	#14
xirtic RCC Addict Join Date: Jan 2008 Location: Mount Juliet Posts: 1,287	I have been making Delrin parts for my crawlers for the past year or so...including custom Delrin sleeved links, custom inverted steering servo brackets, and battery trays. I was using a Dremel for all of this, but recently I purchased a 4" Diamond Bladed mini table saw and a Dremel Scroll Saw. With these, I felt empowered to attempt my first chassis. I have wanted to try a TVP Bodiless design, and for the past few weeks I have been sketching on graph paper...then dropping it into SolidEdge on the laptop. Well, yesterday I cut it. I think that for a first attempt it turned out well. Delrin definitely is easier to work than aluminum...it helps to build confidence and thus allows people to try things that otherwise would feel out of reach. PLUS, it is not expensive in case you goof up. Well, here are a few pics. Attached Images

09-13-2009, 07:30 AM	#15
rmdesignworks I wanna be Dave Join Date: Jan 2006 Location: ...the burning end of the rope. Posts: 5,013	Josh,,the chassis looks really good..fluid lines..looks strong,,what type of axles are you using? are using Delrin for the skid too? did theblackmonkey forget his login,,,? are you still in this tbm? Last edited by rmdesignworks; 09-13-2009 at 07:34 AM.

09-01-2009, 07:32 AM	#2
constantmotion On the lookout for Rocks Join Date: Mar 2006 Location: Monroe, Louisiana Posts: 3,711	What kind of chassis are you trying to build....Scale, TVP, Tuber?

09-02-2009, 08:38 PM	#3
adale4130 Pebble Pounder Join Date: May 2009 Location: South Gap Posts: 139	i've decided to try to build a chassis also.. 2.2 crawler. I have opted to go with delrin. I just ordered .125" delrin sheet, just waiting for it to come in. The reason i chose delrin is, I think it will be easier to work with vs. aluminum. Im going to be using mostly hand tools to build it. If all goes well i will be posting a thread about my build. Wish me luck.

09-03-2009, 01:09 AM	#4
Dirtydids Newbie Join Date: Jul 2009 Location: Phoenix Posts: 34	i went with aluminum for my 2.2 it came out pretty clean. tho it was a bit of a pain cutting the aluminum even with a dremel. if you have a band saw itll make your build cake. id have to agree with the post above me and say derlin might be alot easier with strictly hand tools.

09-08-2009, 09:26 PM	#10
jsowens RCC Addict Join Date: Jul 2009 Location: Blacksburg, VA Posts: 1,882	rmdesignworks, thanks for explaining that. makes a whole lot more sense now. SaxtonSlaughter, that's a really nice chassis you made. i'm using primarily hand tools for my chassis build...aside from a drill and maybe a dremel. i'll be cutting it out using a jeweler's saw. i recommend people considering making a chassis out of delrin and using hand tools to consider a jeweler's saw. mine cut through the skid material like it was nothing.

09-09-2009, 03:54 PM	#11
CHU*D No idea what I'm doing Join Date: Oct 2008 Location: Underground, CO Posts: 4,529	Another option to drilling and tapping the skid, is to make the holes for the skid, the same as those for your lower links. That way the bolt holds the side plates, skid and lower link ends all together....eliminates a few steps, and some extra hardware:

09-12-2009, 04:25 PM	#12
badnuz Quarry Creeper Join Date: Sep 2008 Location: by a river Posts: 253	holy fricken craop dude that skid plate is wicked

09-13-2009, 12:27 AM	#13
rmdesignworks I wanna be Dave Join Date: Jan 2006 Location: ...the burning end of the rope. Posts: 5,013	not to hijack your thread but,,,Juan is that your chassis? real nice set up!

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