Acrylic Bending Machine

( Heating bending )


Bending Plexiglass offers a range of possibilities because this material softens when heated without discolouring. This allows you to make the most beautiful things from it! From a transparent bedside table or a colored plexiglass cabinet to a handy laptop holder or tablet holder.

The typical forming temperature range of most acrylic sheet plastics is 275°F to 350°F (135°C to 177°C)



Calculate Voltage, Ampere

for desired Wire-Length, Wire-Resistance and Watts

Wire length =
Wire Resistance = Ohm per meter
Desired Power = Watt



Voltage is V at A for desired Power of W
With Heating Wire Length of   and Resistance of Ohm





   

Cr20Ni80





Technical parameters of Nickel-chrome,Nickel-chrome-Fe wire Table :


(mm)Dia.
Cross Sectional area(mm2)

Surface per meter (cm2)		 Cr20Ni80 Cr15Ni60 Cr20Ni35,Cr20Ni30
Weight per meter kg/m Resistance per meter O/m,20 Weight per meter kg/m Resistance per meterO/m,20 Resistance per meterO/m,20 Weight per meter kg/m
0.10 0.007854 3.142 0.00006597 138.8 0.00006440 142.6 132.4 0.0000616
0.12 0.01131 3.770 0.00009500 96.38 0.00009274 99.03 91.96 0.0000892
0.15 0.01767 4.712 0.0001484 61.68 0.0001449 63.38 58.85 0.000140
0.17 0.02270 5.341 0.0001907 48.02 0.0001861 49.34 45.82 0.000179
0.19 0.02835 5.969 0.0002382 38.44 0.0002325 39.50 36.86 0.000224
0.21 0.03464 6.597 0.0002909 31.47 0.0002840 32.34 27.36 0.000300
0.25 0.04909 7.854 0.0004123 22.21 0.0004025 22.82 21.19 0.000388
0.27 0.05726 8.482 0.0004809 19.04 0.0004695 19.56 16.89 0.000487
0.29 0.06605 9.111 0.0005548 16.50 0.0005416 16.96 14.71 0.000558
0.31 0.07548 9.739 0.0006340 14.44 0.0006189 14.84 12.93 0.000635
0.35 0.09621 11.00 0.0008082 11.33 0.0007889 11.64 10.81 0.000760
0.40 0.1257 12.57 0.001056 8.674 0.001030 8.913 8.276 0.000993
0.45 0.1590 14.14 0.001339 6.835 0.001304 7.042 6.539 0.00126
0.50 0.1963 15.71 0.001469 5.551 0.001610 5.704 5.297 0.00155
0.60 0.2827 18.85 0.002375 3.855 0.002318 3.961 3.749 0.00224
0.70 0.3848 21.99 0.003233 2.832 0.003156 2.910 2.754 0.00304
0.80 0.5027 25.13 0.004222 2.168 0.004122 2.228 2.109 0.00397
0.90 0.6362 28.27 0.005344 1.713 0.005217 1.761 1.666 0.00503
1.00 0.7854 31.42 0.006597 1.388 0.006440 1.426 1.350 0.00620
1.20 1.131 37.70 0.009500 0.9638 0.009274 0.9903 0.9196 0.00894
1.40 1.539 43.98 0.01293 0.7081 0.01262 0.7276 0.6756 0.01216
1.60 2.011 50.27 0.01689 0.5421 0.01649 0.5570 0.5173 0.01588
1.80 2.545 56.55 0.02138 0.4283 0.02087 0.4401 0.4087 0.02006
2.00 3.142 62.83 0.02639 0.3470 0.02576 0.3565 0.3310 0.02408
2.20 3.801 69.12 0.03139 0.2867 0.03117 0.2946 0.2736 0.03002
2.50 3.976 70.69 0.03340 0.2741 0.03260 0.2817 0.2109 0.04195
2.80 6.158 87.96 0.05172 0.1770 0.05049 0.1819 0.1689 0.04866
3.00 7.069 94.25 0.05938 0.1542 0.05796 0.1584 0.1471 0.05587
3.50 9.621 110.0 0.08082 0.1133 0.07889 0.1164 0.1081 0.07599
4.00 12.57 125.7 0.1056 0.08674 0.1030 0.08913 0.08276 0.09930
4.50 15.90 141.4 0.1336 0.06853 0.1304 0.07042 0.06539 0.1256
5.00 19.63 157.1 0.1649 0.05551 0.1610 0.05704 0.05297 0.1551
5.50 23.76 172.8 0.1996 0.04588 0.1948 0.04714 0.04462 0.1880
6.00 28.27 188.5 0.2375 0.03855 0.2318 0.03961 0.03749 0.2236
6.50 33.18 204.2 0.2787 0.03285 0.2721 0.03375 0.03194 0.2623
7.00 38.48 219.9 0.3233 0.02832 0.3156 0.02910 0.02754 0.3041



Technische Tabelle Widerstandsdraht NiCr 80/20

Resistance Heating Wire Nickel-Chromium Alloy 80% Nickel / 20% Chromium

More info over NiCrA or NiCrC cable

YouTube: DIY Acrylic Bender



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