Simkits USB Altimeter Construction Manual Download Page 1

(SERVOS, WHEREOF ONE MODIFIED,

ARE NOT INCLUDED IN THE KIT)

CONSTRUCTION MANUAL

ALTIMETER

*

1

*

2

*

Construction kit “Altimeter”

General hints

- Double gearwheel (2 x)

Your kit contains all the necessary 

Be very careful when using the hobby knife! 

M

- Upper cap rotary encoder

components (except for servomotors) for 

You can easily hurt yourself when handling 

N

- Propeller shaft

building an “Altimeter”.

sharp objects! Take good care of the amount 

P

- Gearwheel with shaft, short

of glue you apply and to which areas you 

Q

- Hollow gearwheel (2 x)

Fine-tuning

apply it. Glue for plastics is essentially a 

R

- Gearwheel with shaft, long

The calibration software allows you to 

solvent. Excessive use can damage the 

S

- Fastening cap 1

accurately adjust the instrument (once 

exterior of the instrument.

T

- Fastening cap 2

connected to the Central Control Unit) to 

U

- Bush rotary encoder

the movement of the needle of the chosen 

Preparations before beginning construction

V

- Gearwheel shaft

instrument.

Check if all components are included. During 

W

-  Shaft

packing, the contents of the construction kit 

X

- Indicator 10.000 foot

Difficulty level

have been inspected several times. Nothing 

Z

- Indicator 1.000 foot

This product can be constructed without 

should be missing.

Y

- Indicator 100 foot

technical expertise. Knowledge of 

Use the hobby knife to remove any 

A1

- Front ring

electronics soldering is required. Care and 

irregularities. Be careful when using the sharp 

A2

- Front optical

accuracy are of utmost importance.

hobby knife!

A3

- Upper casing

A4

- Lower casing

What else do you need?

Warranty

A5

- Light

A normal and a modified servomotor, types 

Construction kits come without a warranty!

A6

- 2-Wire cable

HS300, HS311 or equivalent, are required 

A7

- Heat shrink sleeve

to make the instrument fully functional (for 

List of components

A8* - Rotary encoder assembly or R1, R2, R3

modifying a servomotor, see the separate 

- Metal knob

A9

- Self-tapping screw for mounting PCB

manual). This product can be ordered 

AA - Inbus key

R1* - Rotary encoder

separately through the SimKits webshop or 

-  Bolt (inbus)

R2* - Rotary encoder fitting

bought from any retailer of model kits. 

- Strain relief

R3* - Rotary encoder wire

Additionally you will need some simple 

- Printed Circuit Board

tools, such as a small star-shaped 

-  Lower faceplate

screwdriver, a hobby knife, some pliers, a 

E1

- Bearing

*(A8 or R1, R2, R3 is included)

small hammer, a 1/16” (4 mm) drill, a 0.26” 

-  Faceplate

(6.5 mm) drill, a soldering iron (suitable for 

-  Pressure scale

fine electronics), tin solder, insulating 

-  Outer shaft

adhesive tape, superglue and glue suitable 

- Plate

for plastic model kits.

-  Central shaft

K - Inner 

shaft

A3

A4

A1

A2

A5

A7

A6

D

I

C

A

B

AA

P

R

S

T

M

R1

R2

R3

A8

U

A9

X

Z

Y

W

V

E1

G

Q

Q

L

F

L

K

H

J

N

E

Read this manual carefully
before starting construction

Summary of Contents for USB Altimeter

Page 1: ...e of Use the hobby knife to remove any A1 Front ring electronics soldering is required Care and irregularities Be careful when using the sharp A2 Front optical accuracy are of utmost importance hobby knife A3 Upper casing A4 Lower casing What else do you need Warranty A5 Light A normal and a modified servomotor types Construction kits come without a warranty A6 2 Wire cable HS300 HS311 or equivale...

Page 2: ... the wires onto the rotary encoder R1 as indicated in drawing 5 and 6 Place component W U as assembled in drawing 1 onto t he rotary encoder shaft There is a small indentation in the rotary encoder shaft The opening of component U contains a small ridge which fits exactly into this indentation Make sure ridge and indentation fit completely Connect component M to component A8 making sure no glue co...

Page 3: ... A7 A5 A5 A6 A7 D A8 Connect cord A6 to light A5 by soldering Use sleeve A7 to insulate the soldered connection but leave roughly 8 mm s worth of wire free at the base of the light The sleeve shrinks when heated Connect the wires to the circuit board Polarities are not important Place the rotary encoder assembly s connector onto the circuit board as indicated Normal SERVO Twist the servo clockwise...

Page 4: ...oard have been omitted for the sake of clarity For the remainder of the assembly it is assumed that these are connected to the circuit board as indicated in drawings 16 through 19 Modified servo Modified servo Normal servo Normal servo Page 4 17 18 19 20 21 22 23 24 Modified servo Normal servo SSIMULATOR PARTS Altimeter Construction Manual CAUTION The servos cannot be connected as shown in picture...

Page 5: ...e in position you can carefully check whether they can twist freely 2X Page 5 25 26 27 28 29 30 31 32 Normal servo Modified servo Place the servos into lower casing A4 as indicated in drawings 30 and 31 Use the screws you previously unfastened from the servos see drawing 28 to lock them into position Take note do not wind the screws too tightly It s easy to damage the thread SSIMULATOR PARTS Place...

Page 6: ... not the case the central opening needs to be enlarged according to instructions in drawing 38 Component G should be able to move freely when placed onto component H If this is not the case enlarge the central opening in component G according to drawing 38 Use a rolled up piece of fine sandpaper to widen the opening in component G in case component G does not turn freely on component H Place gearw...

Page 7: ... E1 x x Insert component K Q inner shaft and gearwheel into bearing E1 making sure the inner shaft aligns with the modified servo x x x x x x Insert gearwheel shaft V into the indentation on the plate and press it down tightly Place the first gearwheel L over the metal gearwheel shaft SSIMULATOR PARTS Altimeter Construction Manual ...

Page 8: ...r the metal gearwheel shaft Place the outer shaft H over central shaft J making sure the gearwheels connect properly and smoothly Place the upper casing onto the lower casing without using glue Guide the rotary encoder and the light with cord up through the upper casing SSIMULATOR PARTS Altimeter Construction Manual ...

Page 9: ...the illustration Make sure the servo remains in the same exact position as before Position the air pressure scale G inches or millibar exactly as indicated in the illustration Use the altimeter s faceplate as an aid and permanently place the faceplate onto the upper casing as well Mind the proper positioning by using the positioning notches I I 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 0 0 r e t e m i t l A...

Page 10: ...ace the 100 ft indicator Y as shown in the illustration and press it down Do not use glue Mount the rotary encoder assembly A8 into front ring A1 Place front ring A1 onto the upper casing without using glue You can now connect the Altimeter to the Central Control Unit and test if it functions properly by using the calibration software If necessary temporarily use some adhesive tape to keep the com...

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