Home Built Baja 5T-PTV (Personal Tracked Vehicle)
02-22-2010 | 03:58 AM
#27
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
Another long day at the shop. The tracks are essentially finished. I think they will work. They are freeking heavy but I'm running a sixty and I will have the gearbox nice and low. My only concern atm is burning up clutches. I will have to think about this one.
Here is the finished track. Both sides are done but I only assembled one. All the aluminum will get anodized before final assembly. I have Custom Street Toyz helping me out with the color scheme.
Here is the finished track. Both sides are done but I only assembled one. All the aluminum will get anodized before final assembly. I have Custom Street Toyz helping me out with the color scheme.
02-22-2010 | 04:18 AM
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From: hometown, AUSTRALIA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
That looks incredible mate.
I have a few files on transmissions for single motors in model tanks if they`re of any interest to you. Send a pm if you want them and i`ll upload them for you
I have a few files on transmissions for single motors in model tanks if they`re of any interest to you. Send a pm if you want them and i`ll upload them for you
02-22-2010 | 12:58 PM
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From: Plover , WI
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
Sweet project, looks like something I wouldn't want to get dirty when its all done :-) how come you didn't opt to go with something more like the mattracks style tracks 4 independent tracks so you can take them on and off like wheels?
Great machine work :-).
Thank You,
Scott
Zero Gravity RC
Great machine work :-).
Thank You,
Scott
Zero Gravity RC
02-22-2010 | 09:45 PM
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From: hometown, AUSTRALIA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
Had a couple of PM`s asking for the transmission link so here it is guys
Hope it helps someone out
Cheers
Troppo
Hope it helps someone out
Cheers
Troppo
02-23-2010 | 03:32 AM
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From: Kenmore,
WA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
wow...brice you are amazing...hey i was also wondering if you ever got that crazy baja back after it was stolen a long while back. I never heard anything more about it.
02-23-2010 | 05:07 PM
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From: Glasgow, MT
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
MAN, that's a lot of little parts and time.
What do you suppose it would cost to make a set for somebody?
<-somebody.
I get the feeling it's probably cost prohibitive.
What do you suppose it would cost to make a set for somebody?
<-somebody.
I get the feeling it's probably cost prohibitive.
02-28-2010 | 04:44 AM
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
Didn't do much on the project this week. I started and finished the gearbox housing on Friday. It ended up being ginormous but It had to be this big for everything to fit inside. There are a total of thirteen gears and two clutches that will be going inside this "little"box".
The gear box was machined from an 8"x16"x2.5" block of billet.
Here is the first operation finished
Here is the second op finished
I also machined the tranny adaptor plate which also doubles as a shock tower support. I am using a Turtle racing rear shock tower for this project. Here is the assembly.
I have to do some modifications to the chassis so that the motor will fit. Also I will have to use a smaller gas tank because the motor is now sitting where the OEM tank used to go.
The gear box was machined from an 8"x16"x2.5" block of billet.
Here is the first operation finished
Here is the second op finished
I also machined the tranny adaptor plate which also doubles as a shock tower support. I am using a Turtle racing rear shock tower for this project. Here is the assembly.
I have to do some modifications to the chassis so that the motor will fit. Also I will have to use a smaller gas tank because the motor is now sitting where the OEM tank used to go.
02-28-2010 | 04:47 AM
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
This is a popular question. I don't know. I kind of wanted to get the whole tank experience with this vehicle. Being able to turn on a dime and crawl over anything. I also wanted to try something that I have never seen which is to have track assemblies with independent suspension from that of the chassis.
ORIGINAL: zerogravityrc
Sweet project, looks like something I wouldn't want to get dirty when its all done :-) how come you didn't opt to go with something more like the mattracks style tracks 4 independent tracks so you can take them on and off like wheels?
Great machine work :-).
Thank You,
Scott
Zero Gravity RC
Sweet project, looks like something I wouldn't want to get dirty when its all done :-) how come you didn't opt to go with something more like the mattracks style tracks 4 independent tracks so you can take them on and off like wheels?
Great machine work :-).
Thank You,
Scott
Zero Gravity RC
02-28-2010 | 04:50 AM
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
Thanks for posting. I looked at the design It's very similar to what I was going to do. My concern though was with the positive engagement of the power. I felt that this would be too much of a shock on the system and be difficult to control. With the clutches I am hoping to have proportional control of the power engagement.
ORIGINAL: troppo
Had a couple of PM`s asking for the transmission link so here it is guys
Hope it helps someone out
Cheers
Troppo
Had a couple of PM`s asking for the transmission link so here it is guys
Hope it helps someone out
Cheers
Troppo
02-28-2010 | 04:53 AM
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
It would definitely be cost prohibitive. If this were a retail product that we did in the same kind of volume of our other stuff you would still be looking at a price of around $6000 for the right and left track assembly
ORIGINAL: Bob-Stormer
MAN, that's a lot of little parts and time.
What do you suppose it would cost to make a set for somebody?
<-somebody.
I get the feeling it's probably cost prohibitive.
MAN, that's a lot of little parts and time.
What do you suppose it would cost to make a set for somebody?
<-somebody.
I get the feeling it's probably cost prohibitive.
02-28-2010 | 05:13 AM
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From: hometown, AUSTRALIA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
ORIGINAL: brice_arnold
Thanks for posting. I looked at the design It's very similar to what I was going to do. My concern though was with the positive engagement of the power. I felt that this would be too much of a shock on the system and be difficult to control. With the clutches I am hoping to have proportional control of the power engagement.
Thanks for posting. I looked at the design It's very similar to what I was going to do. My concern though was with the positive engagement of the power. I felt that this would be too much of a shock on the system and be difficult to control. With the clutches I am hoping to have proportional control of the power engagement.
ORIGINAL: troppo
Had a couple of PM`s asking for the transmission link so here it is guys
Hope it helps someone out
Cheers
Troppo
Had a couple of PM`s asking for the transmission link so here it is guys
Hope it helps someone out
Cheers
Troppo
02-28-2010 | 09:33 PM
#44
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
Nice tracked vehicle....!
just curious why you said you were doing this in Autocad and then sending to SolidEdge or ProE? I was considering Autocad for some design work, but I assume you are using the others to send directly to the CNC?
just curious why you said you were doing this in Autocad and then sending to SolidEdge or ProE? I was considering Autocad for some design work, but I assume you are using the others to send directly to the CNC?
02-28-2010 | 09:44 PM
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From: Manchester,
NY
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
CAD and cnc programming are exclusively separate......I think. I can't think of something that does both, but I could be mistaken. I use Solidworks to design, and then import that into Mastercam to program the machine. But I too am curious why you did it in two CAD programs, why not just use the better 3D design instead of Autocad. I am a bit biased against AutoCAD, never been a fan. This is possibly the most amazing thread to date for me, (no offense to any other builder here). It's amazing work, and I can only dream of getting to your level of design and machining ability. Keep it up man, your inspiring me more and more every day. At this point you've got me going back and redesigning a few parts of my own truck to run on the CNC........maybe......
02-28-2010 | 09:54 PM
#46
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
ORIGINAL: Soloratov
CAD and cnc programming are exclusively separate......I think. I can't think of something that does both, but I could be mistaken. I use Solidworks to design, and then import that into Mastercam to program the machine. But I too am curious why you did it in two CAD programs, why not just use the better 3D design instead of Autocad. I am a bit biased against AutoCAD, never been a fan. This is possibly the most amazing thread to date for me, (no offense to any other builder here). It's amazing work, and I can only dream of getting to your level of design and machining ability. Keep it up man, your inspiring me more and more every day. At this point you've got me going back and redesigning a few parts of my own truck to run on the CNC........maybe......
CAD and cnc programming are exclusively separate......I think. I can't think of something that does both, but I could be mistaken. I use Solidworks to design, and then import that into Mastercam to program the machine. But I too am curious why you did it in two CAD programs, why not just use the better 3D design instead of Autocad. I am a bit biased against AutoCAD, never been a fan. This is possibly the most amazing thread to date for me, (no offense to any other builder here). It's amazing work, and I can only dream of getting to your level of design and machining ability. Keep it up man, your inspiring me more and more every day. At this point you've got me going back and redesigning a few parts of my own truck to run on the CNC........maybe......
02-28-2010 | 10:16 PM
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
ORIGINAL: magnum
Nice tracked vehicle....!
just curious why you said you were doing this in Autocad and then sending to SolidEdge or ProE? I was considering Autocad for some design work, but I assume you are using the others to send directly to the CNC?
Nice tracked vehicle....!
just curious why you said you were doing this in Autocad and then sending to SolidEdge or ProE? I was considering Autocad for some design work, but I assume you are using the others to send directly to the CNC?
As far as CNC programing, it is done with .DXF files generated from AutoCAD. Even if I have a 3D model I will create orthogonal views of the model and export them as .DXF files. Tens I go into AutoCAD and manipulate the layers for programing. My CAM software is 2.5D so I have to use .DXF files. I have a copy of MasterCAM but haven't had a chance to play with it yet. If you are new I would recommend starting with Solidworks or Pro-E Wildfire. I use both of these on a day to day basis and they are much easier to learn than AutoCAD. I have never even tried using AutoCAD for 3D and I have been using is for the better half of a decade now.
02-28-2010 | 10:19 PM
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From: Los Altos Hills, CA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
ORIGINAL: magnum
Yes, they are separate. But you can export a CAD file to a CNC file, almost as simple as using a print driver, which is what I was referring to. Just depends on the machine I guess.
ORIGINAL: Soloratov
CAD and cnc programming are exclusively separate......I think. I can't think of something that does both, but I could be mistaken. I use Solidworks to design, and then import that into Mastercam to program the machine. But I too am curious why you did it in two CAD programs, why not just use the better 3D design instead of Autocad. I am a bit biased against AutoCAD, never been a fan. This is possibly the most amazing thread to date for me, (no offense to any other builder here). It's amazing work, and I can only dream of getting to your level of design and machining ability. Keep it up man, your inspiring me more and more every day. At this point you've got me going back and redesigning a few parts of my own truck to run on the CNC........maybe......
CAD and cnc programming are exclusively separate......I think. I can't think of something that does both, but I could be mistaken. I use Solidworks to design, and then import that into Mastercam to program the machine. But I too am curious why you did it in two CAD programs, why not just use the better 3D design instead of Autocad. I am a bit biased against AutoCAD, never been a fan. This is possibly the most amazing thread to date for me, (no offense to any other builder here). It's amazing work, and I can only dream of getting to your level of design and machining ability. Keep it up man, your inspiring me more and more every day. At this point you've got me going back and redesigning a few parts of my own truck to run on the CNC........maybe......
It's not quite that simple. You still have to program the part for the machine and the individual operations, fixtures, setups, tool-changes, etc... This is what the CAM software is for. Solidworks has an add-on CAM package that you can use to generate a machine program from your part. It's an expensive add-on though.
02-28-2010 | 10:42 PM
#49
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
ORIGINAL: brice_arnold
This is how I prefer to work. For me it is much easier and faster to work in AutoCAD and do layouts and sketches and then go into modeling. In the end it is probably a longer process but it allows more freedom to iron out the design before modeling. As a sketcher AutoCAD is far superior to any 3D modeling software that I have ever used. However I would never used AutoCAD for 3D. If I could only have one of the two I would go with the 3D modeling. I can get by with it just fine it just becomes painful for sketching. I find my self using more scratch paper and a pen using just the 3D without AutoCAD.
As far as CNC programing, it is done with .DXF files generated from AutoCAD. Even if I have a 3D model I will create orthogonal views of the model and export them as .DXF files. Tens I go into AutoCAD and manipulate the layers for programing. My CAM software is 2.5D so I have to use .DXF files. I have a copy of MasterCAM but haven't had a chance to play with it yet. If you are new I would recommend starting with Solidworks or Pro-E Wildfire. I use both of these on a day to day basis and they are much easier to learn than AutoCAD. I have never even tried using AutoCAD for 3D and I have been using is for the better half of a decade now.
ORIGINAL: magnum
Nice tracked vehicle....!
just curious why you said you were doing this in Autocad and then sending to SolidEdge or ProE? I was considering Autocad for some design work, but I assume you are using the others to send directly to the CNC?
Nice tracked vehicle....!
just curious why you said you were doing this in Autocad and then sending to SolidEdge or ProE? I was considering Autocad for some design work, but I assume you are using the others to send directly to the CNC?
As far as CNC programing, it is done with .DXF files generated from AutoCAD. Even if I have a 3D model I will create orthogonal views of the model and export them as .DXF files. Tens I go into AutoCAD and manipulate the layers for programing. My CAM software is 2.5D so I have to use .DXF files. I have a copy of MasterCAM but haven't had a chance to play with it yet. If you are new I would recommend starting with Solidworks or Pro-E Wildfire. I use both of these on a day to day basis and they are much easier to learn than AutoCAD. I have never even tried using AutoCAD for 3D and I have been using is for the better half of a decade now.
I work mainly in 3D modeling most of the time the models are sent out for CNC, however they use them, never worried to much about. So haven't been exposed so much on the actual CAM side for years. I just haven't used Autocad in years, mainly NX, Catia V5, Wildfire..... But I understand the process you are using, thanks for explaining...
03-02-2010 | 06:48 AM
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From: leongatha,VIC, AUSTRALIA
RE: Home Built Baja 5T-PTV (Personal Tracked Vehicle)
brice, you mentioned you were concerned about burning through clutches, have to considered running a wet clutch similar to a motorcycle to combat this?
