AstroMedia 209.NST Petunjuk - Halaman 2

Jelajahi secara online atau unduh pdf Petunjuk untuk Teleskop AstroMedia 209.NST. AstroMedia 209.NST 5 halaman. The reflecting telescope

Halaman Cetak

Instructions:

The Main Body and the Eyepiece Connector

The tube is the actual reﬂecting telescope. The large main mirror sits inside

one end and in the opening at the other end the small right angled

collecting mirror reﬂects the focused image from the main mirror at a right

Instructions:

angles into the eyepiece. The tube is made up of two larger and two smaller

segments which are connected by the extended gluing tabs of three internal

diaphragms.

Step 1 The axle segment [A1] is one of the two large segments onto which

you will later glue the axle which allows the tube to swivel up and down.

Remove the axle segment from the card sheet and fold all grooves to the

back. Glue the long glue tab behind the opposite edge to form a hexagonal

The Main Body and the Eyepiece Connector

tube.

The tube is the actual reflecting telescope. The large main mirror sits inside

Step 2 The sight segment [A2] is the second large segment. The rear sight

one end and in the opening at the other end the small right angled collecting

mirror reflects the focused image from the main mirror at a right angle into

[G3] and [G4] will later be glued onto it. Fold and glue it together like the

the eyepiece. The tube is made up of two larger and two smaller segments

axle tube.

which are connected by the extended gluing tabs of the three internal dia-

Step 3 Remove the round cardboard piece from the three internal

phragms.

diaphragms [A3], [A4], and [A5]. Each tab around the hexagon has a white

Step 1 The axle segment [A1] is one of the two large segments onto which

marked line in the middle of its grey front surface. Fold the tabs backwards

you will later glue the axle which allows the tube to move up and down.

so that the side with the white line is on the outside and the black side is on

Remove the axle segment from the card sheet and fold all the grooves to the

back. Glue the long glue tab behind the opposite edge so as to form a hex-

the inside.

agonal tube.

Step 4 Put one of the hexagonal internal diaphragms into the end of the

Step 2 The sight segment [A2] is the second large segment. The rear sight

axle segment (ﬁrst without glue) which has the marking "hier stößt die

[G3] and [G4] will later be glued onto it. Fold and glue it together like the axle

Markierung -111- des Visiersegments an" and push the diaphragm into the

tube.

hexagonal tube so that the marked lines on the six tabs lie exactly on the

Step 3 Remove the round cardboard piece from the three internal diaphragms

[A3], [A4] and [A5]. Each tab around the hexagon has a white marked line in

edge of the tube. Now all the tabs stick half-way out of the opening of the

the middle of its grey front surface. Fold the tabs backwards so that the side

axle segment. Glue it in this position by pulling it out, coating the inside of

with the white line is on the outside and the black side is on the inside.

the tube with glue, reinserting the diaphragm and pressing the tabs ﬁrmly

Step 4 Put one of the hexagonal internal diaphragms into the end of the axle

into place.

segment (first without glue) which has "hier stößt die Markierung –111- des

Step 5 Wait until the glue is dry and then, without glue, try placing the sight

Visiersegments an" and push the diaphragm into the hexagonal tube so that

the marked lines on the six tabs lie exactly on the edge of the tube. Now all

segment [H2] over the tabs of the diaphragm so that the marking

the tabs stick half-way out of the opening of the axle segment. Glue it in this

"Markierung-111-" lies directly next to the marking "hier stößt die Markierung

position by pulling it out, coating the inside of the tube with glue, reinserting

-111- des Visiersegments an". Now remove the sight segment and coat the

the diaphragm and pressing the tabs firmly into place.

inside at the appropriate end with glue and assemble it onto [A1] with the

Step 5 Wait until the glue is dry and then make a trial run (without glue) by

tabs inside. Important: Make sure the two tubes butt directly against each

placing the sight segment [H2] over the tabs of the diaphram so that the

other with no gap. Press the tabs ﬁrmly into place from inside until they are

instruction "Markierung -111-" lies directly next to the instruction "hier stößt

die Markierung -111- des Visiersegments an" . Now remove the sight seg-

stuck. Stand vertically with a light weight on top until the glue has set.

ment and coat the inside at the appropriate end with glue and assemble it

Step 6 Glue the other 2 internal diaphragms into the ends of the assembled

onto [A1] with the tabs inside. Important: Make sure the two tubes butt di-

tube in the same way as the ﬁrst with the line of the tab protruding halfway

rectly against each other with no gap. Press the tabs firmly into place from

out of the tube.

inside until they are stuck. Stand vertically with a light weight on top until the

Step 7 The main mirror will later be set in the mirror segment [A6] and the

glue is dry.

Step 6 Glue the other 2 internal diaphragms into the ends of the assembled

front sight [G1]+[G2] will later be placed on this segment. Fold the mirror

tube in the same way as the first with the line of the tab protruding half-way

segment and glue it to form a short hexagonal tube which has the same

out of the tube.

diameter as the already existing tube comprising the sight segment and the

Step 7 The main mirror will later be set in the mirror segment [A6] and the

axle segment.

front sight [G1]+[G2] will later be placed on this segment. Fold the mirror

Step 8 Glue the mirror segment [A6] onto the tabs protruding from the end

segment and glue it to form a short hexagonal tube which has the same

diameter as the already existing tube comprising the sight segment and the

of the axle segment making sure that the "-222-" markings line up and that

axle segment.

there are no gaps or cracks between the segments.

Step 8 Glue the mirror segment [A6] to the tabs protruding from the end of

Step 9 Remove the centre hexagonal area where the eyepiece will be ﬁtted

the axle segment making sure that the "-222-" markings line up and that

from the eyepiece segment [A7]. Fold and glue the segment to form a

there are no gaps or cracks between the segments.

hexagonal tube. Do not attach it to the rest of the body yet.

Step 9 Remove the centre hexagonal area where the eyepiece goes from

the eyepiece segment [A7]. Fold and glue the segment to form a hexagonal

Step 10 Fold the ﬁve longer grooves of the eyepiece connector [B1] to the

tube. Do not attach it to the rest of the body yet.

back to form a short hexagon. This will not be formed into a hexagon with

Step 10 Fold the five longer grooves of the eyepiece connector [B1] to the

glue but with sticky-tape from the inside. The tape should only connect the

back to form a short hexagon. This will not be formed into a hexagon with

edges of the tube and not the tabs. Place half the width of the tape on one

glue but with sticky-tape from the inside. The tape should only connect the

edge of the tube and then press the other edge on the protruding length of

edges of the tube and not the tabs. Place half the width of the tape on one

edge of the tube and then press the other edge on the protruding length of

tape. Be careful that the eyepiece connector is not too tight for the

tape. Be careful that the eyepiece connector is not too tight for the eyepieces.

eyepieces. To be absolutely sure, you can ﬁrst complete steps 32 and 39 by

To be absolutely sure you can first complete steps 32 and 39 by gluing the

glueing the eyepiece shafts [F1] and [F5] to test if they can move up and

eyepiece shafts [F1] and [F5] to test if they can move up and down on the

down on the eyepiece connector without too much friction. It may be that

eyepiece connector without too much trouble. It may be that you have to cut

you have to cut the tape and renew it. Fold the foot tabs outwards, i.e. not

the tape and renew it. Fold the foot tabs outwards, i.e. not to the inside of the

to the inside of the tube.

tube.

Step 11 Insert the eyepiece connector through the hexagonal hole in the

eypiece segment [A7] from the inside. Important: Make sure the two diago-

eyepiece segment [A7] from the inside. Important: Make sure the two

nally cut tabs are on the side away from the "-333-" marking, i.e. towards

diagonally cut tabs are on the side opposite to the "-333-" marking, i.e.

where "hierhin kommt die Öffnungsblende" is printed. This is to ensure the

towards where "hierhin kommt die Öffnungsblende" is printed. This is to

secondary mirror holder [D1] can be glued correctly in place later. When you

ensure the secondary mirror holder [D1] can be glued correctly in place

are sure you know which way round it goes, remove it, glue the foot tabs and

reinsert it, pressing the tabs firmly until stuck. You can do this by laying the

later. When you are sure which way round it should go, remove it, apply

entire segment flat and pressing on the tabs from outside. Make sure the

glue to the foot tabs and reinsert it, pressing the tabs ﬁrmly until stuck. You

eyepiece tube is at right-angles to the main tube. Check with a set square or

can do this by laying the entire segment ﬂat and pressing on the tabs from

the corner of one of the card sheets.

outside. Make sure the eyepiece tube is at right-angles to the main tube.

Step 12 Fold the long groove of the lower eyepiece connector collar [B2] to

Check with a set square or the corner of one of the card sheets.

the front and the five short grooves to the back. The result is a chain of 6

joined links each of which has an adjoining section. Place this chain around

Step 12 Fold the long groove of the lower eyepiece connector collar [B2] to

the eyepiece connector so that the split sections are lying flat on the tube of

the front and the ﬁve short grooves to the back. The result is a chain of 6

eyepiece segment and glue it in this position. Fold the grooves of the upper

joined links each of which has an adjoining section. Place this chain around

the eyepiece connector so that the split sections are lying ﬂat on the tube of

the eyepiece segment and glue it in this position. Fold the grooves of the

upper eyepiece connector collar [B3] to the back and glue it around the

opening of the eyepiece connector.

Step 13 Put the eyepiece segment [A7] with the assembled eyepiece

connector onto the remaining tabs on the main body making sure that the

"-333-" markings line up. (The diagonal tabs on the eyepiece connector

point to the front opening of the main body). Glue in place as before,

making sure that the two tubes butt directly against each other without a

gap. Press the tabs ﬁrmly until stuck.

eyepiece connector collar [B3] to the back and glue it around the opening of

Step 14 Cut out the 3 body collars [A8], [A9], [A10]. Glue into place around

the eyepiece connector.

the main body joints, wherever two segments meet.

Step 13 Put the eyepiece segment [A7] with the assembled eyepiece con-

Step 15 Glue the axle disks [C3] and [C4] together to make a disk with

nector onto the remaining tabs on the main body making sure that the mark-

double thickness. Make sure the edges are properly aligned otherwise you

ings "-333-" line up. (The diagonal tabs on the eyepiece connector point to

the front opening of the main body). Glue in place as before making sure that

will need to sand them to a round shape when dry. Repeat with the other

the two tubes butt directly against each other with no gap. Press the tabs

pair [C5] and [C6].

firmly until stuck.

Step 16 Glue the right double-layered axle block exactly in the middle of the

Step 14 Cut-out the 3 body collars [A8], [A9], [A10]. Glue into place around

right axle base [C1], the left, on the left axle base [C2]. To ensure they are

the main body joints, wherever two segments meet.

central you can stick a pin through the marks in the middle of the axle

Step 15 Glue the axle disks [C3] and [C4] together to make a double thick-

ness disc. Make sure the edges are properly aligned otherwise you will need

blocks and bases. Leave until dry.

to sand them to a round shape when dry. Repeat with the other pair [C5] and

Step 17 Glue the resulting unit of right axle base and block with the

[C6].

unprinted side exactly in the middle of the corresponding markings on the

Step 16 Stick the right double-layered axle block exactly in the middle of the

axle segment of the tube. Do the same with the left one.

right axle base [C1], the left, on the left axle base [C2]. To ensure they are

Step 18 Coat the right axle block with glue and stick the right axle cover

central you can stick a pin through the marks in the middle of the axle blocks

and bases. Leave until dry.

disc [C7] onto it. The zero degree mark "0" should be exactly over the small

Step 17 Stick the resulting unit of right axle base and block with the unprinted

white arrow at the edge of the tube side and the negative number "-80"

side exactly in the middle of the corresponding markings on the axle seg-

should be towards the eyepiece tube. Between the axle base and the cover

ment of the tube. Do the same with the left.

disc you now have a slot into which later the arms of the axle bearings at

Step 18 Coat the right axle block with glue and stick the right axle cover disc

the top of the two mounting supports will be ﬁtted. Repeat the procedure

[C7] onto it. The zero degree mark "0" should be exactly over the small white

with the left axle cover disc [C8] correspondingly.

arrow at the edge of the tube side and the negative number "-80" should be

towards the eyepiece tube. Between the axle base and the cover disc you

The tube is now ﬁnished and ready for the optical elements to be ﬁtted.

now have a slot into which later the arms of the axle bearings at the top of

the two mounting supports will be fitted. Repeat the procedure with the left

The Secondary Mirror

axle cover disc [C8] correspondingly.

The 15.5 x 22 mm secondary mirror directs the light rays from the main

The tube is now finished and ready for the optical elements to be fitted.

mirror at a right angle into the eyepiece. It needs to be held exactly central

The Secondary Mirror

in the main body at 45 degrees to its axis and directly under the eyepiece

The 15,5x22mm secondary mirror directs the light rays from the main mirror

connector. Therefore it is particularly important to ﬁt the mirror mounting

at a right angle into the eyepiece. It needs to be held exactly central in the

plate [D1] carefully.

main body at 45 degrees to its axis and directly under the eyepiece connec-

tor. Therefore it is particularly important to fix the mirror mounting plate [D1]

Step 19 Fold the main part of the secondary mirror mounting [D1] along the

carefully.

long groove to the back so that the two unprinted halves are joined ﬂush on

Step 19 Fold the main part of the secondary mirror mounting [D1] along the

each other. Fold the two small rectangular, slanted tabs to the front as well

long groove to the back so that the two unprinted halves are joined flush on

as the two wide foot tabs and the two narrow head tabs. Glue the main part

each other. Fold the two small rectangular, slanted tabs to the front as well

carefully together making sure there is no glue on the tabs. Press the main

as the two wide foot tabs and the two narrow head tabs. Glue the main part

part, while drying, so that it remains straight.

carefully together making sure there is no glue on the tabs. Press the main

part, while drying, so that it remains straight.

Step 20 Fold the two small diagonal tabs away from each other so that they

form a right angled plate for the secondary mirror that is at 45 degrees to

form a right angled plate for the secondary mirror that is at 45 degrees to the

the folded back of the mirror holder. Glue the mirror in place, on the non-ﬁlm

folded back of the mirror holder. Glue the mirror in place, on the non-film

side, ensuring that as it dries, the tabs on which the mirror is glued do not

side, ensuring that as it dries the tabs on which the mirror is glued do not

bend to one side or the other but remain at right angles to the mirror holder.

The mirror is covered with a bluish protective film which should only be re-

The mirror is covered with a bluish protective ﬁlm which should only be re-

moved after the glue is dry. Lift one corner of the film with a craft knife and

moved after the glue is set. Lift one corner of the ﬁlm with a craft knife and

carefully peel it off.

Step 21 Fold the two wide foot tabs and the two narrow head tabs away from

Step 21 Fold the two wide foot tabs and the two narrow head tabs away

each other and try the mirror holder in the eyepiece end of the main body.

from each other and try the mirror holder in the eyepiece end of the main

Don't glue it at this stage. The mirror must point into the main body. The head

body. Donʼt glue it in at this stage. The mirror must point into the main body.