James Gentles Rig02 Drawings

Transcription

1 Jams Gntls Rig02 Drawings This documnt givs dtails of my Nikon 775 KAP rig, with pan, tilt, shuttr and zoom control with vido downlink. Th rig wighs 310g, a total of 550g including camra and attris. This is not a full constructional dtail, ut a collction of th matrial I usd as th rig was constructd. Th ida is to giv you idas whn uilding your rig, rathr than giving you instructions to mak an xact copy. You ll quickly find that KAP is a voyag of discovry, and th thrill is in th construction, invntion, failur, and succss! Schmatics All th circuits usd for th rig, primarily th automatic vidoswitch, and MAX761 9V convrtr. Also includd ar circuits for convrting your transmittr from joystick opration, attry chargrs and an fficint switchmod supply for powring a 6V TV from a 9.6V transmittr attry. Componnt Lays Ths ar dsignd for th cass and configurations I usd, ut thy may usful. Mchanical 1 Th mchanical dtails rquird for th s, as wll as th rackt rquird for th zoom and shuttr s to control th Nikon 775, mad from 1.6mm aluminium. You nd to us 1.6mm to gt sufficint stiffnss for th to prss th uttons! Mchanical 2 Dtails of th two main U rackts for th rig. Ths ar mad from 0.8mm aluminium for lightnss, adding folds incrass rigidity. Mchanical 3 Dtails of th 4:1 gar rduction and mount to th picavt suspnsion, also dtails of th plastic utton arrangmnt for firing th shuttr y cord. Finally dtails of th phono ¼ wav arial and groundplan for th 434MHz downlink. Dcmr 2003 Aov: Rig02 Blow: Lins Mill Aquduct, Union Canal

2 RIG 02: Arial, Ground, and Battry Chargr Circuit Diagrams (5 NiMH clls) Battry v Camra v Srvo v Vido to TX (unarthd) Vido from camra Camra v Srvo v Battry v vido amplifir (SMPTE standard) vido dtctor (<0.6v off >3v on) MOSFET powr switch Slight intrfrnc on vido, is thought to coupld via th PSU. Considr isolating with 4V znr & 100ohms 25 8K2 4K7 * Not: For 4 cll opration (4.8V) chang rsistor * to 910ohms 3x 1N4148 1u 316K d BSP297 s g d s KAP RIG02: Vido dtctor, Powr switch and Powr supply circuit diagram c g d 47u tant & F 9V Boost Rgulator 33uH, 1.4A MAX761 Not that th ground rfrnc for th vido supply is NOT th sam as for th othr circuits. I. don't ground th downlink arial to th attry ngativ! 1.5V 1N K 38K3 vido 9V us a commom mod chok on this put to stop intrfrnc with th SERVO rcivr 47u tant & F vido 9V Channl 1: PAN Channl 2: TILT Channl 3: ZOOM v v BC14110 For 6V pack th circuit nds >10V input. Tolight LED on trickl switch th 178R grn Rig 6V Battry Chargr 178 c 1N mA ~C/10 4V86V Battry Th rsistor in th mittr of 9V6 Battry BC LED glows on 35mA only 6mA trickl 35mA C/10 Ths simpl attry chargrs ar constant currnt circuits. Idally thy should charg NiCd or NiMH at thir C/10 rat. th BC10410 dtrmins th charg currnt according to: R=750/mA Paralll or sris rsistors to gt th xact currnt rquird. St th LED ypass rsistor (178R) using this formula: R=2200/(mA23) Rmmr at highr currnts th BC10410 and rsistor may gt warm, so choos rsistor wattag & transistor hatsinking appropriatly. v v Srvo Transmittr Battry Chargr 10 For 9V6 pack th circuit nds >12V input, LED will dim if low input voltag starts to rduc charg currnt. cntr pin is ta on can marks th 10 10K rd NOTE: In this vrsion of th chargr, th diod has n rplacd with a schottky diod. This givs mor hadroom whn th supply voltag is low. Howvr not that a highly chargd attry connctd to a 12 volt vhicl attry which has not n chargd for som tim will not charg to th full currnt. With this circuit, th LED will go whn charg currnt <120mA. If th diod is rmovd, this givs 0.4volts mor hadroom ut thr is a dangr th attry will discharg into th supply. Channl 4: SHUTTER / POWER cntr iasd momntary on Rsistor Ntworks to rplac joysticks Ths rsistor chains ar dsignd to rplac standard 5Kohm joystick potntiomtrs, and provid th logically and rgonomically ttr rotary control solution for KAP. Th PAN and TILT ar simpl rsistor chains with prsts to allow you control ovr th ndstops in a similar way to th trims on th joysticks. Th SHUTTER and ZOOM show how to provid a singl and doul position switch, again with a trim control. Th circuits ar dsignd so that thr is nvr a high or low rsistanc prsntd momntarily as th switch is changd. This could rsult in jittr on all channls, not just th ing switchd. This circuit tris to mak sur that you don't lav th transmittr on! As wll as an ON light that fads as th voltag drops, thr ar two thrsholds, on for a RED light, and a lowr on still for a BUZZER. Th RED light says stop KAPing, th BUZZER is for th car oot! Th circuit shows a numr of variations on a thm. Not th circuit can mad from NPN or PNP transitors, and also th fixd and varial voltag st points. st lowst thrshold for soundr st mdium thrshold for rd light powr on LED This circuit allows th downlink TV rcivr to shar th attry with th SERVO transmittr in 470uF 16V LM K8 1N5822 3n3 78uH 470uF 16V Buck 9.6 to 6V rgulator (for pockt TV) us a commom mod chok on this put to stop intrfrnc twn th downlink TV rcivr and th SERVO transmittr Battry v Battry v 7V5 46K4 8.2V st 12K1 c Pizo Soundr 9.4V st 10K 5V1 12K1 2N V8 Srvo transmittr: lost warning & low attry indicator c 261 r g

3 RIG 02: Arial, Ground, and Battry Chargr Circuit Lays tiwrap 3x ,1u 316K 2x in 25 4K7 9V PP3 connctor 0V 8K2 BSP297 33uH 5817 MAX761 KAP Rig: Vido Dtctor & 9V PSU 2x 47u 2x 464K 38K3 currnt slct switch SW1 & SW2 22uF Battry Chargr 2x35mA 140mA SW1 conr OP1 conr LED R n BC14110 SW2 conr OP2 conr R5 100 powr IP OP3 conr LED BC N K BC x 10R LED...PAN......TILT......ZOOM......Shuttr... 2x681 All pots xcpt cntr zoom x 470uF 16V 1N5822 to pots 2x681 to codr to switchs, 78 to codr LM2595 5V1/10K 12K 2 to LED 240 6V6 PSU PSU Srvo Transmit Codr: Control translation Lay in ground 470uF 16V 78uH,.5ohm, 1.5A 3K8 3n3 downlink TV rcivr: 9.6 6V uck convrtor

4 RIG 02: Mchanical Dtails (1 of 3) R 2.5 mm 12.9 mm 5.9 mm Dtail cut for JP NARO Srvo shaft 3.6 mm 10.0 mm R 5.5 mm R 1.8 mm 3.6 mm 9.0 mm Dtail cut for JP STANDARD Srvo 7.75 mm 15.5 mm R 1.0 mm R 1.6 mm 10.0 mm 20.0 mm 5.0 mm 40.0 mm 1.5 mm 8.4 mm 4.0 mm 26.0 mm 45.0 mm 3.0 mm R 1.0 mm Zoom paddl (positiond 12mm from zoom uttons) mad from 2mm plastic hol for shuttr cord add padding twn mtal and camra nd down mtal to act as hook for shuttr lastic add padding twn mtal and camra 14.0 mm 49.0 mm 16.0 mm 4.0 mm 40.0 mm 41.6 mm ZOOM 7.0 mm 22.5 mm 13.0 mm 6.0 mm SHUTTER 14.5 mm 10.0 mm 15.5 mm Tilt Srvo tmplat for ottom U Shuttr and Zoom rackt

5 RIG 02: Mchanical Dtails (pag 2 of 3) R 3.2 mm 22mm from as aftr folding fold up vido arial 86.0 mm mm Vido downlink mounts hr with 2 tiwraps through slots 15.5 mm tripod mount fold up NIKON 775 R 3.0 mm 22.0 mm 20.0 mm19.0 mm 18.0 mm 22.0 mm ack stop DC switch and convrtor oard Bottom U Brackt mm 7.5 mm 5.0 mm 5.0 mm 20.0 mm Top U Brackt Shap nsurs fr rotation of top rackt around vido arial and prvnts fouling ottom rackt from top aftr folding This fac movs against th vido downlink radials, so do not mount anything hr Battry Pack fix with lastic and lastic and Locators for lastic and holding attry in plac gar mount mm tiwrap arial support rod tiwrap 24.0 mm PAN shaft Grommt hol for glass fir Srvo Arial Support (500 x 2 mm). 174mm in top U, and fixd with tiwrap, rst ovrhanging rig. Extra arial just hangs down mm mm tiwrap ( & powr) from top aftr folding tiwrap ( & powr) Srvo Rcivr fix with vlcro and lastic and TILT shaft 17.5 mm Locator for lastic and holding Srvo RX in plac Grommt

6 RIG 02: Mchanical Dtails (pag 3 of 3) Shap mad from PTFE rod M4 olt attachd to suspnsion via a nylock nut rvrsd onto th shaft and a M4 wing nut. A small hol is locatd in th top of th olt for a rtaining clip (mad from a cut down kirygrip) M4 x 65mm olt hld with M4 nylock nut shuttr cord lastic and utton pivot 4:1 1:1 4x M2.5 olts connct to first gar. motion 16mm intrnal diamtr pip fitting 24.0 mm Shuttr Rlas cord lin (to Zoom Brackt) R 4.2 mm Pan Srvo & fdack gars Dtaild Elvation Button pivot wir Top 3 cords in hols 8.5 mm Plastic phono plug. Scur radials twn plug and plastic covr Th radials ar mad of two pics of 1mm coppr wir, nt and soldrd as shown aov to form a ring that is trappd twn th mal Phono and it's plastic covr, Th arial and radials ar hld from th rig y 300mm on a 2mm caron rod which also supports a thin coax arial lad, which has BNC on th rig nd and a flying phono sockt on th arial nd, tiwrappd to th rod. Th ovrall lngth of th compltd radial st should 325mm (th full lngth is not shown in th drawing). Elastic Band lin to Zoom rackt mm to Lowr 3 cords in U channls 70cm Arial and groundplan diagram 4:1 rprsntation of Nikon 775 Shuttr rlas parts