how to read a threaded hole callout

Here is my specific question about the two schools of thought, using a typical thread callout. The drawing now has the callout and if you edit the Hole Wizard feature in the model, the callout updates automatically. Check into software parameters if hole wizard points to the right language file, this could be the reason why it "speaks" english. After selecting the Hole Callout click the edge of a hole, then click in the graphics area to place the hole callout. 5X = means there are five holes that must meet this requiremnt. Threads on tapped holes are indicated by dashed lines for ANSI drawings, and the appropriate 3/4 outline for ISO drawings. An ANSI drawing is illustrated below: To show/hide thread lines: Right-click on the view. Select Show/Hide threads (to toggle thread lines on and off). Here is what you have been waiting for. Find the closest match on the adjacent chart (thread O.D and pitch combine into a thread callout such as M12 x 1.5 indicating a 12mm O.D with 1.5mm pitch) If a seal or angled sealing surface In side views, you can select linear edges to position a hole or thread note. A 3/8-16 UNC-2B tap drill is dia .313. Default tolerance of .06 will apply. The short keys I used during the lecture: To view nearly orthographic view: F8. Is there a way to include the chamfer in the hole call-out on the drawing if the chamfer is made in this way? This looks like a view on the top surface, showing the CB. I was always told that a good drawing shows what the design intent is and should not be biased to machining (or for that matter, inspection, Ppap or Dfmea or any other initials you can think of). Typical designations examples. ACME: a type of trapezoidal threads. Notice the chamfered edges in the picture above. The first part represents the quantity of the hole. Make a copy of calloutformat.txt and rename it calloutformat-default.txt. Length. According to my Holo-Krome screw selector guide, a 1/4-28 UNF-2A tap drill is dia .2187. Auto dimension a hole pattern. The difference is one group says also call out diameter of the hole to be drilled to prepare for tapping, second group says don't include diameter of the hole, the thread callout handles it all. NOTE: We have these diameters published in our engineering design manual, but I have not been able to locate their source. A chamfer is an angle on the edge of a workpiece. I would read this as from the CB surface. Annotation standardization is provided by the ASME Y14 series of standards. Callout is editable, look carrefully left down you will see hole description, you can edit this, suppress & replace text. The first step in customizing the hole callout file is making a backup of the default one. External thread is designated A and internal B. LH is used to specify the unusual left hand used sometimes for locking against rotational force or other special applications.. With the old "feature parameters" way of calling out threaded holes, you could delete the actual numerical value for the thread depth and use annotation to make it say THRU. First school of thought:.138-32 UNJC-3A The measurement units will often be called out in the title block or tolerance block but occasionally will be in another section of the blueprint such as in the notes. Non-threaded Drilled holes: Click on another hole. The edge can be the outside of the part, where a hole breaks through a surface or where any two surfaces meet. for fasteners, and hole callouts (local notes). Here are the five steps to interpreting thread callout: Look at the numbers in the callout. Step 1: Start by drawing a rectangle on the Top plane with a length and width of 70mm and 50mm, respectively. Right-click the callout and select Add leader. Enable the Annotation Ribbon tab. External threads refers to threads cut or rolled into the external cylindrical surface of a Thread Angle. Another reason for delay is incomplete thread specifications. The difference is one group says also call out diameter of the hole to be drilled to prepare for tapping, second group says don't include diameter of the hole, the thread callout handles it all. Tapped Holes. for fasteners, and hole callouts (local notes). A or B is used to specify whether it is an external or internal thread. Also, the dimension Manager will appear. SOLIDWORKS MBD intelligently recognizes associated features and provides sensible options on the in-context command bar. how can you call out a threaded hole (ansi callout) and have it remain associative? Annotation standardization is provided by the ASME Y14 series of standards. Customizing Hole Callout File. Pitch. By giving the tap drill size and tap drill depth, aren't you limiting how the hole and thread is produced. Extrude the rectangle to 10mm, as shown below: Step 2: On the Features tab, select the Hole wizard. Determine the thread pitch in mm using a thread gauge or calipers (typically 1.0, 1.5, or 2.0, but other sizes do exist) Determine the thread O.D (male thread) or I.D (female thread) using calipers. The term internal threads refers to threads cut into the sidewall of an existing hole. Tapped holes are made in sheet metal parts by first starting with a laser cut hole. Screw Thread Designation for a tap hole with Example drawing. Select the two silhouette edges of the cosmetic thread. In this video we explore some of the more common hole features and their drawing callouts. Whenever it's time to report or present, I would suggest to use Detailed Thread for applying thread. The term internal threads refers to threads cut into the sidewall of an existing hole. Aug 05, 2005 12:55 PM. The threaded hole Depth Type is set to Full and Depth Limit is set to Through Body. Detailed Thread can show and edit its various properties such as: Minor diameter. Go to the *.hol file and edit the DRILLED_DEPTH value for the desired hole to THRU_ALL, save *.hol file and re-open Creo. External threads refers to threads cut or rolled into the external cylindrical surface of a So are you saying you can have more than 1 Threaded hole standard .xml file - what you're pointing out above seems to be that you can put 3 completely different hole/thread standards on a network and share them, which isn't the same thing as have 3 .xml files for threaded hole standards, unless I'm completely misunderstanding this. So, after reading the above paragraph, you should know that: Well, generally we don't specify the pre-drill hole for tapping. Blind holes are holes that do not go through the full wall thickness of the part. The hole note should display the thread call out as the default and when you add a countersink or counterbore it should add the appropriate information. After you see that work change the hole type in the hole feature to THRU_ALL, when you do that the only thing that should display is the thread call out. We call out the threaded hole feature end-item requirement e.g. They are created for mainly for protecting the chamfered object as well as anyone who might come in contact with the object. In the drawing the hole callout of the cbore displays "THRU" for the shaft diameter depth (as expected) but the depth for the threaded holes displays as the thickness dimension of the part (in this case 12.70mm) instead of "THRU". Call out thread depths on blind holes. It is preferable to use advanced settings. The selection is really easy too: Click on a holes inner face (or even a holes edge to avoid zooming into small features), and the entire hole pattern is automatically selected. Sometimes I also make a hole with the hole command without a chamfer, and then add the chamfer later with a second command. Software: SOLIDWORKS. Click to place the dimension. Created: 6 April, 2021. If you want a counter-bored hole for a screw, you can use the threaded hole portion and select to remove the threads. Included are Thru holes, counterbores and countersinks. This To place a hole callout on your drawing, click Hole callout and select the hole. The pointer changes to when it is over a silhouette edge of a cosmetic thread. Browse to the location specified in File Locations, the default location is: C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\lang\english. The second part is the tap hole screw thread designation. Then place or move the leader line to the desired position. If you add the countersink or counterbore you should only see the thread call out displayed, save your file and close. This will set the hole to be a clear-hole for the thread size selected (once again, based off of the .hol file for the selected thread type). To add the callout: Click Smart Dimension (Dimensions/Relations toolbar) or Tools > Dimensions > Smart. DRAWING CALLOUT: Non-threaded Torch Cut Thru holes: The callout that will be used on Kress engineering drawings will be as follows: The nominal holes diameter will be shown to the two places decimal. Thread Directions. I would like to easily combine the information in the 2 arrows below into one self updating call-out. You would notice that the Hole wizards property manager comes up. How to Read Metric Thread Callout 1 Find the screw thread callout number. 2 Note that the letter "M" means you have a metric screw. 3 Look at the first number to find the screws diameter. 4 Read the next number to figure out the screws pitch. 5 Use the last number to determine the length of the screw. See More. If you place threads on an extruded cut hole, your selection of the thread or hole edge determines if a thread or hole note is created. You can see the Symbols Denoting Diameter or Radius R. If Depth is given that will be mentioned with the symbol. Edit the definition of the hole, select the Note tab, and select Reset. Cheers. how can you call out a threaded hole (ansi callout) and have it remain associative? That hole is then treated with a treading bit to create threads in the hole for use with a screw or bolt with matching threads to hold a component or attaching the sheet metal part to another component. A few examples are outlined below #4-40 x 0.5 1/4-20 x 5/8 M3-0.50 x 10 Understand the first number in the callout This indicates the major diameter. The units of the print are very important because there is a huge difference between 25.4mm and 25.4 inches. However, by default, the note for the threaded holes leave a lot to be desired. A hole Callout will be inserted. Hold the CTRL key on your keyboard to disable leader line snapping. holes is specified in standard 095004 and is not covered in this standard.

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