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Carving Pantograph I ' l I • comparison of Indian head master and finished birch carving. Left, pantograph being used to carve head from master pattern to one-half actual sixe. Right below, Aladdin's lamp master pattern, and above it, '1•-sizo ebony wood brooch and \2-size wood carving made by tho panto­ graph From the master carving. Maki~.9 and Using a Carving Pantograph THE photos shown here and on page 141 I ~re only a fe·;,- samples of the type of re­ duced size, three-dimensioned carvings you can make with this $10 duplicator. Such pantographs are ideal for carving templates, brass molds for plastic injection molding, name plates, and form dies for small ornamental metal parts. J ewelers use panto­ graphs for engraving tiny lettering and sig­ natures. HO-gage model railroaders can make highly detailed models up to four times gage Smell electrical part for model railroad modo with size, and then pantograph-carve them down pantograph from 4 to 1 cardboard pasteup. Making to gage size very accurately. ports this way frequently sovos industry tho cost of expensive blanking dies until final designs are It is an ideal tool for linoleum block carving approved. Continued on page 141 '132 SCIENCE AND MECHANICS ) How to build a ... 6.000 3-D CARVING PANTOGRAPH You can make accurate reduction holes in that arm. Drill the various carvings from almost any three-di­ holes in the other arms similarly, us­ mensional object within the moving ing the template for accuracy. limits of this comparatively simple This pantograph can be adapted to I pantograph carving machine. almost any flexible shaft or small hand You may either build the panto­ g•·inder with a straight shank and an graph from scratch or assemble it rpm bet ween 7,500 to 27,000. Just ad­ I from a kit of pre-cut and finished just the la1·ge hole in the tool holding parts. The kit includes fully-machined bar for a snug fit on the tool you plan. rock maple arms protected with a to use. By cutting a slot to a smaller I warp-resistant ebony finis~ all hard­ hole and using a nut and bolt (see Mo­ ware washers, the stylus ana a pro­ tor Bar drawing) the carving tool can (es&ional router bit tapered to match be clamped securely in this bar. I stylus, with all bearings ready for Swab the bearing holes in the arms lubrication and assembly. You may with SAE 20 oil. Then •·earn all bear­ obtain the complete kit from Bench­ ing holes with the left hand 1,4-in. 6.000 I Craft, Dept. SM, Rolling Meadows, sph·al reamer. Then re-oil the reamed Illinois, for $9.75 plus 25¢ for postage. holes and allow to stand for two davs. The kit does not include the plywood Repeat this process three times. This I bed (which you can make from scrap) will saturate each bearing with oil and and: of course, the powered hand give satisfactory bearings for accu­ I grinder or flexible shaft. rate carving. To buiJd this pantograph accurately Insert all o£ the lf.1-in. bolts and II f~om scratch, you wil! need to have nuts that must be press-fitted into the access to a good circular saw and drill arms. To seat the parts, tap lightly press, a sharp letter "D"-size drill, a with a small hammer. Re-swab holes 3" left-hand 1,'4-in. spiral reamer, a heavily with oil and assemble all but 6;r ------ I 15 '32-in. counterbore with 1/.a-in. pilot, the motor bar. Add a drop of oil on / LOWER REAR ARM I REO. ROCII and a circle cutter with 1,4-in. pilot each nylon washer at assembly. drill. I Adiusting the Arms. Starting with Make the Bed from ~8-in. fir ply­ the hinge, adjust bolt so hinge \\'ill 21" I wood. Since it is a work surface to work snugly without sticking. Care­ 32 which you ,.,iii screw fasten many (ulJy adjust bolts in each arm indh•id• I p•·ojects, don't finish or polish it. ualJy so that the arms work snugly t . From 11 rock" maple ( •·equired for without binding. If arms are too tight, accuracy), carefully saw the various they will not move; i£ too loose, they arms and brack;!ts to shape. Then, will cause sloppy work. After the arms I starting with tht- pivot block, carefully are adjusted they should not require drill and counte1·bore the holes shown. readjustment for various reduction MATERIALS LIST- CARVING PANTOGRAPH I Although !he patterns were drawn full settings.. No. Req'd Siu and Description scale for your convenience, it's wise Attach the motor bar and make final -2 1!1111 O.D. x 17/64 J.D. x .060 thick 1" dla. nylon washer -1o 9/16 O.D. x 17116 J.D. x .060 thick nylon washer to actuallv check all dimensions, in adjustments at the motor bar only. -2 9/16 O.D. x 9!32 :.D. x .3/64 thick stul washer I case slight alterations have occurred Add the flexible shaft and stylus 3 ~4" A.S.A. medium lock washer -3 Y4 " 20 N.C. lod. nut (plastic insert) when the plans were printed. and you are ready to go to work. ..-7 !t4 " 20 N.C. standard hex nut -.3 ~4 .. 2C N.C. standar!l wino nut I Drilling the arms requires the ut­ -·1 8·32 N.C. standard hex nut most accuracy. For best results, lay Make the Stylus from %-in. -20 -·2 '4" 20 x P.i" N.C. hrx hrad cap screw out a template on a piece of 1/s x ~4- thl'eaded rod, tapering one end for a -1 Y~" 26 x 2" H.C. hex hrad cap scrrw I fine point cutter and rounding the . , 1 ~4" 20 x 2~4" N.C. hn hrad cap screw in. steel or aluminum bar stock for the ···1 !14 .. 20 • 3" ~.C. hex htad cap screw locations of the various holes in the other end for ball-shaped cutters. ·-1 8·32 x 1~4" rh machine scnw If nylon washers and lock nuts are ...,rz ::8 1 1V4" rn woad screw I individual arms. Clamp the template 1 !14"·20 x 4" thruded rod in place on one arm, then with the let­ not available, you may obtain a com­ Luntber Required 1 1 x 6 x 14" clrar rack maple- planed two sides to ~4" thick ter "0" drill, drill the end hole and plete set of 12 washers, three nuts and 1 % x 8 x 12" fir plywood - goad one side .I insert a IJ.a-in. bolt. DriU the hole in a tracing stylus by sending Sl to Cut clamps and blacks from scrap maple as needed A the opposite end and insert another Bench·Craft, Dept. SM, Rolling Mead­ i"PLYWOOD I l/4-in. br · Then drill the rest of the ows, Illinois. ---------------- 6.000 STAMP NO'S. 2- 3 8 4 2.000-------t.... E~ 1.&00 l DRILL, MAPLE OIL a REAM 3'" 6{ ~ DRILL, LONG SIDE ARM I REO. ROCK MAPLE OIL a REAM ... IC'BORE 0 --1 .250 DIA. J20IA. 3 PLACES I 3" i6 DEEP 2.5. 32 _j_ ,.. 1RAD. 3 •• 34 3.000 . MAPLE 2.000 ~ I E1.500 l I!S" 32DIA.·~ c' BORE SHORT SIDE ARM I REQ. ROCK MAPLE f'DEEP DRILL, r;;;;;;;~;~..., TAPER 9 J.o OIL a REAM 2 "o"' DRILL PER SIDE .250DIA. ~··DIA. i' ~~:~ES DEEP r 3 PLACES I I ~~~~~~~~~~~+--1 -~~~~~~+-~- FULL SIZE ARM PATTERNS BUT SCALE Olfi'C"t.ISIONS TO INSURE ACCURACY ,.. REDUCTION SETTINGS H DIA. TIP. r •.• 3-D Car,·ing Pantog .. aph ~:· "i!Yo"SIU O~ll (.' 10ft[ . ·-r c."''*'w ruo a., ANCHOR BLOCKS ,..... ..-.~ ......... ,,. ,..., ...... 4SO fetl Ollie Jrr•• l l "(O. IODCI II.,Ul 1- ~· -i o.,,.,. 1 r. rm ••,, ••• QOill I r r •. t O(SIOM(O rOJt SCI[NC[ AND .. (CHA,.ICJ IT ft(ltCH-CIItArT w~ lll ~J j r L ~r•• ~ r -l I" '{-----------------------------------+~ HINGE BLOCK I 0(0 IR DC C MA Plfl r-- --~~ · "--'--------------------------------~ ~._------------------------------· ~ ·~~· ------------------~--------~~ 1 t-----•ooo:..;.:.:___oot----,- ..-+----1, ~~ --r+~++~..JL , r . 1 001 1 MOlD 1• t(ll.lAH 10 t . DOl l·-==---5oo " -J 1---+-r-• ooo ,_... _ ------.~:• I• I I 1I I DRILLING TEMPLAT( JT((l Oft AlUM . Olltlll, ~~--------~---)000~~··~·~-----------· Oil 8 fiii[AW . t~ OtA . .------~'1 , •1" --,--!-----~- Ht•crs U CI~Cl[ CUTIU WlfM f Oftlll "lOT --Ep- MOTOR IIAf\ I lit' Rft C ~ OIAPI..C r~~~~~~~~~rr~~~~~~~~~~~~~~ L~~~~~~~~~r-~~~~~~~~~~~~ 3-D Carving Pantograph 1.000 t------:----e.ooo-~..1 1!.000- E• I.ICO Oltlllt • Olt1U 0 r o•L a Ill•" UPPER REAR ARM lltiO. ltOCI ••'u Oil& IIUN Ll/"'~ ~ rb§m! ~~@I f I 1000 r 1r L '"""ru si0€T 'I• REDUCTION SETTINGS f 'lYWOOD MATERIALS liST- CARVING PANTOGRAPH No. Rt,'d Sin and Otsrriptio" Lulll•tr Rt,virtd 1 1 It 11111:1lt - plantd 2 lV.r 1.0. • .Of't\J thid 1 .. dia. "''o" ,.,.,,.., 2 •/... 20 I 1~" N.C. hfl htad tiP tcttW 1 1 6 tc• drar roc two shftt to ~' • thlclt o.o. • 111~ ,, I 8 I lr plrwood - 100• ont ddt 10 91 6 0.0. • 17/16 I. D. • .Of..O U1lc• nylon washrr 1 IJ4 '" 20 I 2" N. C. hn hUd UP IUfW 1 u• 2 9/16 0.0, I 9/JZ 1,0, I )/(,4 lhic• llffl Wllhtr 1 1/4 • 20 1 2~'" N.C.
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