Customizable V-Block

thingiverse

Customizable V-Block for holding cylindrical parts. I designed this assembly using OpenSCAD as I wanted to try making parametric assemblies. Disclaimer: Do not use this part for heavy machining. There's a reason these are made out of steel! EDIT: I have now added an option called clampAngle. This will allow you to specify the angle of the clamping nut and bolt. By specifying clampAngle = 0 this will allow you to clamp round stock. Specifying clampAngle = 45 will allow for clamping of rectangular materials. Using the customizer app you can easily change the dimensions of the v-block, the clamp to hold parts and adjust the nut and bolt used to clamp your parts. For this model I used a 5/16-18UNC bolt and nut for the V-Block Clamp. The bolt that I used is 50mm long. Initially only 25mm of the bolt was threaded so I used a 5/16-18 die to thread the entire bolt shank. Below are the dimensions used to create the show parts: //V Block Dimensions //Total V Block Length Length = 75; //V Block Height Height = 50; //V Block Width Width = 50; //Width of v Groove vGrooveWidth = 40; //v Groove notch depth vNotchDepth = 2; //v Groove notch width vNotchWidth = 2; //Notches in side of v block to allow for the attachment of v block clamp sideDepth = 10; sideWidth = 10; //Tolerance of side notches to ensure good fit between clamp and v block clampSideTolerance = 0.1; //V Block Clamp Dimensions //Thickness of Clamp clampThickness = 10; //Width of Clamp clampWidth = Length*0.25; //Height of Clamp above v block clampHeight = 35; //Dimensions of nut/ bolt support on top of v block clamp //Thickness of Nut support clampNutSupportThickness = 15; //Width of nut Support clampNutSupportWidth = 20; //Dimensions of Nut and Bolt for securing parts in V block //Diameter of bolt boltDiameter = 8.25; boltLength = 50; //Width of nut- measure corner to corner distance on nut nutWidth = 14.75; //Nut thickness- measure thickness of nut nutThickness = 7.0; //Diameter of Bolt Knob boltKnobDiameter = 20; //Height of Bolt Knob; boltKnobLength = 20; //Number of knurls around Knob Diameter boltKnobKnurlNum = 15; //Depth of knurls boltKnobKnurlDepth = 1; //Width of knurls boltKnobKnurlWidth = 1; //Angle of knurling boltKnobKnurlAngle = 100; Print Settings Printer Brand: RepRap Printer: MakerFarm i3V 10 Rafts: No Supports: Yes Resolution: 0.25mm or less Infill: 25% Post-Printing Bond the bolt knob to the bolt using cyanoacrylate glue. Insert the nut into the clamp and also bond using cyanoacrylate glue.