Build Guide - Model 4: Landy 4x4 Hardtop
1
Version 1.3.0, March, 2022
For BuildGuide for version 1.2.1 click here
Landy 4x4 Hardtop – version 1.3.0 changelog
2
Changelog:
Landy 4x4 Hardtop – version 1.3 technical specs.
3
Before you start
4
Are you new to the Radio Controlled
models?
Don’t worry, Radio Controlled (RC) models are not as complicated as they can look! However, it’s a good to know some basics before you will start buying parts.
Most mechanical parts in our products will be 3d printed on your own printer, so we will focus here on RC electronics.
On-line beginners guides:
If you have any questions regarding our models, feel free to ask us (or other 3dsets
builders) on our Facebook discussion group, available here: Facebook – 3dsets
5
Landy 4x4 Hardtop – version 1.3: What do you need?
6
Landy 4x4 Hardtop – version 1.3: Required hardware
7
Screws and nuts (in metric size):
Check 3d printer calibration!
8
Please at first test whether the bearing can be inserted into the calibration part. If you have problems or the bearing fits too loose, please make sure that the printer is properly calibrated. Dimensions of the printed parts should match dimensions of the 3d model.
Landy 4x4 Hardtop – chassis
In this 3 - step procedure you will assemble chassis of the car and front panel.
Required print plates:
Non-printed parts:
9
Landy 4x4 Hardtop: Chassis - step 1-2/3
10
2x M3x10
3x M3x12
3x M3x12
10x M3x10
Landy 4x4 Hardtop: Chassis - step 3/3
11
3x M3x10
1x M3x12
5x M3x10
4x M3x12
1x M3x12
4x M3 locknut
Correct servo mount position.
Track Bar mount – there are 3 different sizes, choose one depending on your shocks size (for longer shock use bigger Track Bar mount). Proper orientation: shorter end is facing forward!
Landy 4x4 Hardtop – body
In this step procedure you will assemble chassis of the car and front panel.
Required print plates:
Non-printed parts:
12
Landy 4x4 Hardtop: Fender grill
If you will print the part “Fender Grill” from the .stl file instead of printing from provided gcode, please use following slicer setup:
13
Bodywork – postprocessing
Before you start building Bodywork, carefully remove printing supports (marked red) integrated into specific parts rendered below. You can use pliers and a sharp knife to make the procedure easier. Be very careful as you can harm yourself!
14
supports marked in red has to be removed
Landy 4x4 Hardtop: Body
15
In next step you will assemble body panels and attach the door hinges. Please note that door hinges must be placed in correct orientation (they are NOT symmetrical). See picture below showing the correct orientation of the hinge.
Landy 4x4 Hardtop: Body - step 1/1
16
8x M3x10
11x M2x6
7x Ø2mm
2x M3x20
1x M3x6
Landy 4x4 – Gearbox choice
There are two different gearboxes available for Landy 4x4:
new BeltDrive 4x4
classic Geared Gearbox
New BeltDrive 4x4 features:
New BeltDrive 4x4 is recommended choice. It can handle more power (up to 3S battery) and is very silent. It is compatible with all 3D Sets 4x4 models.
For BeltDrive 4x4, proceed to next page (18).
Classic Geared Gearbox features:
Classic Geared Gearbox is good choice if you have previous experience with and if you require 540 DC 27T motor and maximum precision of throttle response.
For Geared Gearbox, proceed to page 34.
17
BeltDrive 4x4 Gearbox
Required print plates:
Non-printed parts:
In this 8-step procedure you will assemble belted gearbox with the motor. The whole gearbox can be printed from PLA, unless you will drive in some extreme conditions or in very hot environment. To complete this task, get the following parts ready:
18
Shafts
19
If you will print the part “Shafts” from the .stl file instead of printing from provided gcode, please use following slicer setup:
correct printing bed orientation of the Drive Shaft - Cardan and Front Wheel Shaft – marked part MUST LAY FLAT on the bed!
Postprocessing – removing supports
Before you start building, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
20
supports marked in red has to be removed
Be careful – do not damage the “ball” part!
Postprocessing – drilling holes
Please carefully drill through the marked holes that have not been printed through to make printing easier.
21
19xØ3mm
BeltDrive 4x4 Gearbox – introduction
22
BeltDrive 4x4 Gearbox uses 4 identical timing belts – HTD 144-3M-06 (HTD profile, 144 mm long, 3 mm teeth distance, 6 mm wide).
BeltDrive 4x4 Gearbox is compatible with all 4x4 3D Sets models, so you can use it in your older Rancher/Landy without any modifications.. With this gearbox model is moving faster and has more power. Gearbox is very silent and reliable when assembled properly. Gearbox work with brushless outrunner 750-1000 kV and 2S-3S battery.
Internal belts/pulley configuration is shown below:
Important features
23
Bearings calibration
It is very important to check if small 3d printed shaft ends fit the bearings properly, because such small printed objects may shrink too much.
There are two sizes of the “Pulley Shaft small” parts (located on print “Belt Drive Gearbox - 2”):
“S” = standard size; “L = larger size
Please try if the “S” sized part fits the bearing without any gap. The bearing must hold on place firmly, otherwise, the gearbox can be damaged! If there is any gap between the bearing and printed part, then use a slightly larger “L” sized part.
Service holes
BeltDrive 4x4 v1.1 features 3 service holes with covers. These holes have these purposes:
Service holes are marked white on the picture below:
Is there any gap? Then use the “L” part!
Service holes
BeltDrive 4x4 Gearbox – step 1/9
24
2x
2x
4x M3x8
M3 nut
9x M3 nut
BeltDrive 4x4 Gearbox – step 2/9
25
2x M3x12
Double check that the pulleys are peripendicular to the shaft and do not wobble. Make sure there is NO CONTACT between the casing walls and the pulleys!
BeltDrive 4x4 Gearbox – step 3/9
26
2x
M3 nut
3x
3x M3x6
4x M3x16
Make sure that the Output Pulley assembly is symmetrical and do not wobble. If not, please clean the internal cavity in the pulley and tighten the screws properly.
BeltDrive 4x4 Gearbox – step 4/9
27
M3 nut
5x
M3x8
2x M3x25
For the easiest belt installation, first place the belt around the large pulley and then install the adjoining small pulley at the same time as the Box Front B.
Choose “S” or “L” marked part, more info on previous pages!
BeltDrive 4x4 Gearbox – step 5/9
28
2x
M3 nut
4x
4x M3x25
Make sure that the Pulley 5 is assembled correctly. You can use some force to push the Pulley Shaft small into the cavity.
Choose “S” or “L” marked part, more info on previous pages!
BeltDrive 4x4 Gearbox – step 6/9
29
M3x12
Use
screws
packed with
your motor!
M3x12
2x M3x16
Make sure that the Pulley 1 - Motor is assembled correctly. It should not wobble when mounted on the motor!
BeltDrive 4x4 Gearbox – step 7/9
30
4x M3x12
4x M3x8
It is very important to check proper motor position - there must be 0.5-1 mm clearance between the Pulley 1 - motor rim and the Box Front D! If these parts are too close together, you can adjust their position by underlaying the Motor Mount with washers to achieve the correct clearance.
BeltDrive 4x4 Gearbox – 8/9
31
2x M3x10
BeltDrive 4x4 Gearbox – 9/9
32
Apply grease to the spherical and conical surfaces before assembling!
push until click
BeltDrive 4x4 Gearbox – finished
33
Geared Gearbox
Required print plates:
Non-printed parts:
In this 7-step procedure you will assemble the gearbox with the motor. To complete this task, get the following parts ready:
34
Postprocessing – removing supports
Before you start building, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
35
supports marked in red has to be removed
Be careful – do not damage the “ball” part!
Geared Gearbox – step 1/7
36
Put the gears onto corresponding shafts. Pay attention to combine the parts correctly!
Correct configuration
of gears is shown above.
Recommended material for gears: Fillamentum PLA Extrafill, Prusament PLA. Any PET-G will be too fragile for gears.
Use higher printing temperatures, about 210-215°C for PLA!
Top material choice for gears is Prusament PC Blend.
It’s very strong yet easier to print than Nylon, which is suitable too.
Geared Gearbox – step 2-3/7
37
Put the bearings on each shaft end. If you printed and checked the “Test part” with a bearing successfully, bearings should fit smoothly.
Insert shafts into the right side of the gearbox housing. Then apply grease on the gear tooths.
10x
Important! – for best gearbox endurance, use a lot of grease, as the grease will disperse the heat through the gearbox.
Geared Gearbox – step 4/7
38
7x M3 locknut
7x M3x25
Geared Gearbox – step 5/7
39
Motor pinion – version A:
use this pinion if you are using “round head screws”
M3 nut
Recommended material for motor pinion: ABS or CPE, as the PLA can melt due the heat from the motor shaft and PET is too flexible (pinion will slip from the shaft).
M3 nut
Insert nuts into the holes in the motor pinion.
Motor pinion – version B:
use this pinion if you are using “socket head screws”
Geared Gearbox – step 6-7/7
40
Now mount the motor and bearings to their positions. Then install the motor pinion on motor shaft.
2x
2x M3x10
2x M3x6
8xØ3,2mm
8x M3x10
Recommended material for “Gearbox housing - front”: ABS, ASA, CPE or PET-G, as the PLA can melt due to the heat from the motor if you drive continuously or in warm weather. It is strongly recommended to install an optional motor heatsink, preferably active! Purchase links are here or use any similar heatsinks.
active heatsink
passive heatsink
Test the gearbox before mounting to the chassis!
You should be able to turn the gearbox output shaft by hand with some force (attach Cardan Joint Yoke to the output shaft). After that, you can connect a 3 - 7 V battery directly to the motor, it should run.
8x M3 nut
Geared Gearbox – step 8/8
41
1x M3x10
1x M3x10
Apply grease to the spherical and conical surfaces before assembling!
Landy 4x4 Hardtop: gearbox installation
In this simple 1-step procedure you will install Gearbox in the center of the chassis.
Required non-printed parts:
42
Landy 4x4 Pickup - step 1/1
43
2x M3x12
Subassembly #2 – Arms
In this 3-step procedure you will assemble axle arms, steering rods and trackbar. These parts consists of “arm” and “ball joints” and they need to be pressed together.
Required print plates:
Non-printed parts:
44
Arms + Ball joints
45
1x M3x6
Apply grease on Ball joint.
Press Ball joints in arms end. Pay attention to combine parts correctly! Ball joints require correct orientation on specific arms – check next page!
Option A: use a hammer
Be careful as you can break the arm if you use too much force!
Option B: use a Vise
This is a prefered method as you can proceed slowly.
Arms + ball joints
46
On the pictures below are rendered final Arms assemblies. Please note that some Arms requires opposite Ball joint orientation!
Blue marked Ball joint – upside down!
Landy 4x4: – Arms installation
In this simple 2-step procedure you will install arms in the center of the chassis.
Required non-printed parts:
47
Landy 4x4 - step 1-2/2
48
6x M3x16
6x M3 locknut
4x M3x10
Landy 4x4 Hardtop: Electronics and Seats
In this 4-step procedure, you will install all electronic equipment and cables. Then you will mount seats on their positions.
Required print plates:
Non-printed parts:
49
Landy 4x4 Hardtop - step 1/1
50
4x M2x6
2xM3x16
2xM3x16
Landy 4x4 Hardtop - step 2-3/4
51
5x M2x6
4x M3x20
2x M2x6
Landy 4x4 Hardtop - step 4/4
52
Twin cable length 280mm
Twin cable length min. 250mm
Subassembly #3 – Windshield
In this 2-step procedure, you will assemble windshield. To complete this task, get ready all necessary parts:
Required print plates:
Non-printed parts:
53
Windshield – postprocessing
Before you start building Windshield, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and a sharp knife to make the procedure easier. Be very careful as you can harm yourself!
54
supports marked in red has to be removed
Windshield - step 1/3
55
At first, you will make a “windscreen glass” from any transparent foil up to 0.4 mm thick. Thicker material is more durable than thinner, but we found that “Clear Binding Covers” are OK.
Place the Windscreen Inner Frame on the foil, sketch the Windscreen Glass to foil and then cut the Windscreen glass by scissors or sharp knife.
Sheet of transparent foil, max. 0.5 mm thick.
Windshield - step 2/3
56
6x M2x6
4x M2x10
Windshield - step 3/3
57
1x M3x12
1x M3x12
Subassembly #4 – Dashboard
In this 2-step procedure, you will assemble dashboard. To complete this task, get ready all necessary parts:
Required print plates:
Non-printed parts:
58
Landy 4x4 Hardtop - Dashboard 1/2
59
4x M2x10
1x M3x10
1x M2x16
2x M2x6
Landy 4x4 Hardtop - Dashboard 2/2
60
2xM3x16
2x M2x16
Landy 4x4 Hardtop - Hood, Grill, Fender
In this 2-step procedure you will install the Hood, Fender, Grill with light and winker
Required print plates:
Non-printed parts:
61
Landy 4x4 Hardtop: Grill
62
7x M2x6
Landy 4x4 Hardtop: Fender & Hood
63
2x8x M2x6
2x M2x6
2x M2x10
2x M2x6
Landy 4x4 Hardtop - bumpers
In this 1-step procedure you will mount bumpers and rear door in place.
Required print plates:
Non-printed parts:
64
Landy 4x4 Hardtop: Bumper
65
4x M3x10
4x M3x12
2xM3x16
2x M3x10
Landy 4x4 – Axles choice
There are two different axles available for Landy 4x4:
With new Opened Differential
With No Differential (locked)
New Opened Differential features:
Classic No Differential features:
Both types of axles can be combined to achieve optimum performance:
66
Front Opened Diff.
Ideal for interior driving or normal use on the yard
Rear Opened Diff.
Front No Diff.
Ideal for heavy terrain. Not for hard surfaces.
Rear No Diff.
Front Opened Diff.
Recommended setup – good on all surfaces
Rear No Diff.
Front Axle
For Front Axle with Opened Differential, proceed to next page (68).
For Front Axle with No Differential, proceed to page 74.
On the previous slide, you chose your preferred Axles configuration. Let’s start with Front Axle first:
67
Front Axle - with Differential
In this 6-step procedure you will assemble the front axle. The axle includes a open differential, driveshaft and complete steering assembly.
Required print plates:
Non-printed parts:
68
Axles – postprocessing
Before you start building Axles, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
69
supports marked in red has to be removed
cut through marked area
Front Axle (with differential) – step 1/6
2x M3x10
Open differential – section view:
Use screw ISO 7380 or screw with max height head 2mm!
It is recommended to print these specific parts from high-strength material like Prusament PC Blend: specifically the Axle Gears and Differential Pinions. Do not use ABS or PETG for gears, as they are weaker even then PLA!
Prusament PC Blend
6x M2x10
3x M3x8
70
Apply grease on gear tooths.
Use screw ISO 7380 or screw with max height head 2mm!
Prusament PC Blend
Front Axle (with differential) – step 2-3/6
71
1x M3x10
5x M2x10
7x M2x10
Front Axle (with differential) – step 4/6
1x M3x10
1x M3x10
Front Axle (with differential) – step 5/6
2x M3x10
4x M3 nut
2x M3x10
1x M3x10
Front Axle (with differential) – step 6/6
1x M3 locknut
1x M3 locknut
1x M3x16
1x M3x25
1x M3x16
Subassembly #3 – Front axle
In this 10-step procedure you will assemble the front axle. The axle includes a locked differential, driveshaft and complete steering assembly.
Required print plates:
Non-printed parts:
75
Axles – postprocessing
Before you start building Axles, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
76
supports marked in red has to be removed
Front axle – step 1-2/8
77
1x M3x10
Apply grease on gear tooths.
7x M2x6
1x M3x10
Front axle – step 3-4/8
78
1x M3x10
1x M3x10
7x M2x6
1x M3x10
Front axle – step 5-6/8
79
4x M3x10
M3 locknut
M3 locknut
1x M3x16
1x M3x25
4x M3 nut
1x M3x12
Front axle – step 7-8/8
80
1x M3x16
Rear Axle
For Rear Axle with No Differential, proceed to page 85.
For Rear Axle with Opened Differential, proceed to next page (81).
On the slide 66, you chose your preferred Axles configuration. Continue with the Rear Axle:
81
Rear Axle with Differential
In this 4-step procedure you will assemble the rear axle. The axle includes a open differential and driveshaft.
Required print plates:
Non-printed parts:
82
Axles – postprocessing
Before you start building Axles, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
83
supports marked in red has to be removed
cut through marked area
Rear Axle (with differential) – step 1/4
It is recommended to print these specific parts from high-strength material like Prusament PC Blend: specifically the Axle Gears and Differential Pinions. Do not use ABS or PETG for gears, as they are weaker even then PLA!
Prusament PC Blend
6x M2x10
3x M3x8
Prusament PC Blend
2x M3x10
Open differential – section view:
Use screw ISO 7380 or screw with max height head 2mm!
Apply grease on gear tooths.
Use screw ISO 7380 or screw with max height head 2mm!
Rear Axle (with differential) – step 2-3/4
1x M3x10
5x M2x10
7x M2x10
Rear Axle (with differential) – step 4/4
1x M3x10
1x M3x16
Subassembly #2 – Rear axle
In this 6-step procedure you will assemble the rear axle. The axle includes a locked differential and driveshaft.
Required print plates:
Non-printed parts:
87
Axles – postprocessing
Before you start building Axles, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
88
supports marked in red has to be removed
Rear axle – step 1-2/4
89
1x M3x10
4x
Recommended material for differential gears & cardan joints: PLA, as it is rigid enough for this purpose.
Apply grease on gear tooths.
1x M3x10
7x M2x6
Rear axle – step 3-4/4
90
1x M3x10
7x M2x6
1x M3x16
1x M3x12
Landy 4x4 Hardtop – axles & rear seats
In this 1-step procedure, you will assemble bodywork of the car and then you’ll install axles, that you have finished from previous steps.
Front Axle subassemblies
Rear Axle subassemblies
Required print plates:
Non-printed parts:
91
Landy 4x4 Hardtop: axles & rear seats
92
16xM3x16
1x M3 locknut
1x M3x20
2x M3x10
2x M3x12
Subassembly #7 – Hardtop
In this 8-step procedure you will assemble hardtop and rear door. To complete this task, get ready all necessary parts:
Required print plates:
Non-printed parts:
93
Hardtop – postprocessing
Before you start building Hardtop, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and a sharp knife to make the procedure easier. Be very careful as you can harm yourself!
94
supports marked in red has to be removed
Landy 4x4 Hardtop: Hardtop step 1/8
95
At first, you will make a “door glass” from any transparent foil up to 0.4 mm thick. Thicker material is more durable than thinner, but we found that “Clear Binding Covers” are OK.
Place the Door Glass on the foil, sketch the Hardtop Roof Glass, Hardtop Rear Glass, Hardtop Side Glass, Hardtop Rear Door Glass to foil and then cut the Hardtop Roof Glass, Hardtop Rear Glass, Hardtop Side Glass Hardtop Rear Door Glass by scissors or sharp knife.
Sheet of transparent foil, max. 0.5 mm thick.
Landy 4x4 Hardtop: Hardtop step 2/8
96
4x M2x6
Landy 4x4 Hardtop: Hardtop step 2/8
97
3x M2x6
2x Ø2mm
Landy 4x4 Hardtop: Hardtop step 4-5/8
98
6x M2x6
Landy 4x4 Hardtop: Hardtop 6/8
99
1x M2x6
2x M2x10
6x M2x8
Landy 4x4 Hardtop: Hardtop 7-8/8
100
2x M2x10
2x M2x10
4x M2x6
Subassembly #8 – Door
In this 3-step procedure you will assemble doors. To complete this task, get ready all necessary parts:
Required print plates:
Non-printed parts:
101
Doors – postprocessing
Before you start building Door subassembly, carefully remove printing supports (marked red) integrated to specific parts rendered below. You can use pliers and sharp knife to make the procedure easier. Be very careful as you can harm yourself!
102
supports marked in red has to be removed
Landy 4x4 Hardtop: Door - step 1/3
103
At first, you will make a “door glass” from any transparent foil up to 0.4 mm thick. Thicker material is more durable than thinner, but we found that “Clear Binding Covers” are OK.
Place the Door Glass on the foil, sketch the Door Glass to foil and then cut the Door glass by scissors or sharp knife.
Sheet of transparent foil, max. 0.5 mm thick.
Landy 4x4 Hardtop: Door - step 2/3
104
2x M2x6
1x M2x12
2x M2x10
2x M2x14
Landy 4x4 Hardtop: Door - step 3/3
105
1x M2x14
1x M2x14
1x M2x10
4x M2x10
1x M2x6
Subassembly #9 – Wheel (C or D)
Now you will assemble wheels. You can choose between 2 designs (wheel C/wheel D):
Wheel C:
Required print plates:
Non-printed parts:
Wheel D:
Required print plates:
Non-printed parts:
106
Wheel C
107
5x M2x10
Wheel D
108
5x M3x8
Landy 4x4 Hardtop - Wheels D
In this 1-step procedure, you will install the licence plate and then mount 4 wheels on axles.
Required print plates:
Non-printed parts:
109
Landy 4x4 Hardtop: Wheels D
110
4x M3x10
Landy 4x4 Hardtop - final
111
Landy 4x4 Hardtop - general tips
112