Differences

This shows you the differences between two versions of the page.

--- miter_saw_sop [2020/11/25 19:05] – created furst
+++ miter_saw_sop [2020/12/21 01:19] (current) – furst
@@ Line 58: / Line 58: @@
       * Setting feeds and speeds
     * Making a cut
-    * Post Processing
+    * Saw Maintenance
-      * Cleaning the workpiece
-      * Cleaning the saw
-    * Printer Maintenance
       * Changing blades
-      * Troubleshooting
   * The Miter saw is a great tool for cutting precise angles in wood, plastic, and aluminum. The saw has two angle adjustments, one in the head, and the other in the fence to orient the workpiece precisely in relationship to the saw blade.
-  * Remember to enter job information into the 3D print job log!
 ====Safety====
-{{:tools:form2:labcoat.png?75|}}{{:tools:form2:rubergloves.png?75|}}{{:tools:form2:safetyglasses.png?75|}}
+{{:tools:form2:safetyglasses.png?75|}}
-  * Nitrile or neoprene gloves (not latex), safety glasses, and a lab coat must be worn when working with liquid resin printers. Safety glasses and a lab coat are required for working around IPA (isopropyl alcohol) when the Form Wash is open.
+  * Safety glasses or a face shield must be warn at all time when operating the saw
-  * Avoid eye contact with laser. Do not remove the front or back panels of the printer.
+  * Hearing protection is recommended for all operating tool and in adjoining lab (2442)
-  * Care must be taken to prevent contaminating other areas with liquid resin - use containers to transport build platforms or parts that still have liquid resin on them.
+  * Machine tools should never be operated alone, be sure to always run machine tools supervised or with a Workshop Wizard present
-  * Dispose of resin contaminated gloves and other objects in the yellow hazardous waste bin in 2442.
+  * Only cut one workpiece at a time
+  * Be sure workpiece is properly secured
+  * Hands should be kept free and away from the blade at all times
+  * Do not attempt to clear workpiece until blade guide has returned to its original position and the blade has stopped spinning
-====Job Setup====
+====Approved Materials====
-**On The Computer:** \\
+  * Wood
-  * On the desktop computer near the Form 2 printers, open the PreForm software from the start menu.
+  * Plastic
-{{:tools:form2:logo.png?75|}}
+  * Aluminum
-  * To start a new print, click File > New
+  * Brass
-  * File > Open, select the .STL or .OBJ file you want to print.
+  * Copper
-  * Set the scale, orientation, supports, and layout.
+  * Fiber cement panels
-    *Formlabs recommends orienting flat surfaces at an incline of at least 20°.
-    *Avoid printing tall, thin features when using flexible resin as it tends to flex during printing, resulting in print failure
-    *While PreForm may indicate that a part is printable, it is not an indication the print will be successful. Care must be taken to ensure the part is supported properly and that the material choice is suitable.
-  * If there is an 𝚇 next to printability, add manual supports, change support density and touchpoint size as needed until it becomes a ✓.
-  * Save the print job in your group folder.
-  * Record the material used and print time in the online log along with the other job information requested. The print log should be on the desktop or [[https://docs.google.com/forms/d/e/1FAIpQLScS3URUxoHOR62PdQeeSTAYg_suV061UsoFafrgoN0qn6DWYg/viewform.|Print Log]]
-  * To start the upload, press the orange ‘Print’ button.
-  *  Make sure the selected material and version match the resin type loaded in the desired printer. Choose a layer thickness—thicker layers correspond to a faster print but reduce vertical resolution.\\
-{{:tools:form2:diagram.png?600|}}
-**On the Printer: ** \\
-  * Press the button on the Form 2 to confirm the print
-  * After the print is completed, slide out the build platform with the part attached and place it into a plastic bin with absorbent pad to catch any resin spill.
-  * Close the orange cover
-====Using the Form Wash:====
+====Prohibited material====
-  * Transport the part and build platform in the container to Fume Hood #4 in Elings 2442.
+  * Steel
-  * Wear a lab coat and safety goggles, as the Form Wash contains IPA.
+  * Ferrous metals
-  *  Press ‘Open’
+  * Concrete
-  * Slide the build platform into place
+  * Mineral materials
-  * Adjust the wash time to 10 minutes. For times for resins other than flexible and clear, consult the webpage “Form Wash Time Settings” through the Formlabs website.
-  * Press ‘Start’
-  * After the washing is over, press ‘Open’ and remove the build platform. Place it in the container.
-  * Press ‘Sleep’ to close the Form Wash
-  * Allow 30 minutes to pass for the remaining IPA on the part to evaporate
-**Using the Form Cure:**\\
+====Saw Setup====
-  * Release the part from the build platform:
+The Miter saw is designed to be plugged into the Festool dust collector. By setting the dust collector to auto and hooking up the dust collection hose, the dust collector will automatically turn on when the making a cut.
-      * Place build platform on the removal jig. Tools are in the Fume Hood #4 in Elings 2442.
+\\ {{:tools:mitersaw:img_5898.jpg?400|}}
-      * Slide a removal tool under the angled edge of the part’s base to separate it from the build platform.
-  * Lift the cover of the Form Cure. Place the part in the center of the turntable.
-  * Select the curing time and temperature. Curing settings are dependent on which resin is used.
-  * Refer to the webpage “Form Cure Time and Temperature Settings” through the Formlabs website for resin specific information. A longer cure time (up to an hour) will slightly increase the tensile strength of the part.
-  * Press ‘Start’
-  * Lift the cover and remove the part once the post-curing has completed.
-**Post Processing:**
+**Setting up the saw**
-  * Use snips or tweezers to break support material off of the part. Be careful when finishing delicate parts to avoid breaking off small features.
+  - Adjusting blade tilt
-  * Use abrasives such as sandpaper and files to remove marks left by touchpoints until the surface is satisfactory.
+    - Rotate knob protruding from the right overarm to tilt the head assembly and blade \\ {{:tools:mitersaw:img_5900.jpg?400|}}
+  - Adjusting fence rotation \\ {{:tools:mitersaw:img_5899.jpg?400|}}
+    - Lift the lower lever protruding from the front of the blade guide to release the brake
+    - Depress the smaller thumb lever above the brake lever to allow the fence to rotate
+    - The thumb lever will lock into detents at 15, 25, and 45 degrees (other angles can be achieved between detents)
+    - Lower the brake lever to lock the fence  rotation in position
-**Replacing an empty resin cartridge with a full one of the same type:**\\
+**Securing the workpiece**
-More information on the resin system and changing a cartridge can be found on the webpage
+  - Pull the green head lock lever to raise the saw head and blade \\ {{:tools:mitersaw:img_5901.jpg?400|}}
-“Formlabs Resin Tank Information” through the Formlabs website.
+  - Position the workpiece pressed firmly against the fence making sure it is supported on both ends if overhanging the saw body
-  - Remove the empty resin cartridge:
+  - The fence can be adjusted slightly if necessary
-    - Close the vent cap at the top right of the resin cartridge to prevent resin from spilling out once removed
+  - Lining up the cut can be done with the laser guide (button on top of articulating head)
-    - Hold the cartridge handle and lift to remove from the Form 2. Store the cartridge upright with the valve cover installed to protect storage surfaces from resin.
+  - Using external C-clamps secure the workpiece against the fence and resting on the saw body
-  - Insert a new resin cartridge:
+  - Clamps should fully secure the workpiece before and after the cut. Be aware on how the center of gravity of the workpiece will change as it is cut if dealing with a long workpiece.
-    - Shake and rotate the new resin cartridge to ensure that the resin is mixed thoroughly.
-    - Align the cartridge with the opening at the back of the printer. Push down on the cartridge handle until the top of the cartridge is level with the printer.
-    - Press open the vent cap to ensure the resin tank can fill correctly
-====Switching a printer from one type of resin to another====
+**Setting feeds and speeds**
-More information on the resin system and changing a cartridge can be found on the webpage
+  - Adjust the saw speed based on the workpiece material and chart located on the right side of the head
-“Formlabs Resin Tank Information” through the Formlabs website. This includes videos and
+  - Feed should be slow and constant throughout the workpiece and require very little cutting pressure. The saw should not bog down under load during a cut.
-animations.
-  - Remove the build platform - this prevents resin from dripping onto the glass
+====Making a Cut====
-  - Remove resin cartridge:
+  - Don all appropriate PPE including eye and hearing protection
-    - Close the vent cap at the top right of the resin cartridge to prevent resin from spilling out once removed.
+  - Notify users in 2448/2442 and close adjoining door
-    - Hold the cartridge handle and lift to remove from the Form 2. Store the cartridge upright with the valve cover installed to protect storage surfaces from resin.
+  - If extended cut length is needed loosen the locking knob located above the right over arm support. This allows the head to extend towards the operator.
-  - Remove the resin tank
+  - With hands clear of the workpiece and blade, use the thumb to depress the safety, pull the trigger to start the blade spinning
-    - Hold the front tabs of the resin tank
+  - If overarm extensions are being used draw the saw to its full extension before lowering the blade into the cut
-    - Gently pull the front tabs of the resin tank to release the tank feet from the tank carrier. The Resin Tank LT wiper ejects during removal.
+  - Slowly and consistently lower the blade into the cut. The blade shield will automatically expose the blade to the workpiece
-  - Cover the resin tank and store on the left side of the fume hood
+  - If overarm extensions are used lower the blade into the cut at full extension and push the blade back to its initial position after lowering it to full depth of cut
-  - Insert the resin tank for the resin that you plan to use
+  - Once the cut is complete raise the blade out of the cut before releasing the safety and trigger
-    -  Lift the Form 2 orange cover. Use the tank grips to hold the Resin Tank LT, with the wiper resting inside the tank. If the tank contains resin, cover the tank with the plastic lid to align the wiper and minimize the risk of spills during insertion.
+  - The blade shield will automatically cover the blade
-    - Align and insert the four small feet of the resin tank into the corresponding slots in the tank carrier on the printer.
+  - Allow the blade to come to a complete stop before attempting to remove or clear the workpiece
-    - Hold the front tabs and carefully push the tank until the tank feet lock into the slots on the tank carrier. Check the touchscreen display to confirm that the Form 2 detects the tank. The Form 2 will only detect the tank when the tank is fully inserted.
-  - Lock the wiper blade
-    - Align and insert the wiper foot into the wiper mount.
-    - Push the wiper toward the tank.
-    - Ensure the wiper foot is securely locked into the wiper mount.
-  - Insert resin cartridge:
-    - Shake and rotate the new resin cartridge to ensure that the resin is mixed thoroughly.
-    - Remove the protective valve cover from the underside of the cartridge. Use the cover to protect the bite valve during storage.
-    - Align the cartridge with the opening at the back of the printer. Push down on the cartridge handle until the top of the cartridge is level with the printer.
-    - Press open the vent cap to ensure the resin tank can fill correctly.
-  - Replace build platform
-  - Make sure that all of the resin tanks are correctly labeled.
 ====Maintenance====
-  * Cleaning resin tank interior
+**Changing Blades** \\ {{:tools:mitersaw:img_5903.jpg?400|}}
-    * Use the scraper from the finish kit to inspect the resin and the elastic layer. Starting from the top corner, gently scrape from top to bottom across the elastic layer.
+  - Unplug the saw and unhook any vacuum attachment
-    * Check for the following issues that may lead to print failures or any excessive wear that requires replacing the tank:
+  - Loosen the plastic protective guide blocking the saw arbor screw (3mm)
-      * cured resin on the elastic layer
+  - lock the saw arbor in position by rotating the green knob on the head clockwise
-      * debris or failed prints in the resin
+  - Using a 6mm hex wrench loosen the saw arbor. KEEP IN MIND THIS IS A LEFT HAND THREAD
-      * settled pigment on the elastic layer
+  - Squeeze the trigger to release the blade shield and remove the retaining bolt and assembly along with the blade
-      * punctures, cuts, or gouges in the elastic layer
+  - Replace the blade insuring the teeth will cut as the blade rotates clockwise
-      * excessive “clouding” or wear in the elastic layer
+  - Retighten the retaining bolt and assembly keeping in mind that this is a left hand thread
-  * Filtering Resin
+  - Reposition the plastic protective guide and tighten into position
-    *  Use a filter to remove any debris or small bits of cured resin floating in the tank. Clean, debris-free resin helps avoid print failures, which may damage the tank.
-  * Cleaning the tank window
-    * Never use IPA on the acrylic tank window (it will cause cracks).
-    * If dust, fingerprints, and/or contamination are present, clean the clear acrylic tank window with NOVUS No. 1 and a clean microfiber cloth. The clear acrylic tank window is located on the underside of the resin tank. Apply 1-2 full sprays of NOVUS No. 1, and wipe using long, sweeping strokes top to bottom and across the tank window. Fold the microfiber cloth after each swipe to prevent dust and debris from scratching the acrylic.
 -----
-====Form 2 Quick Review====
+====Miter Saw====
 Tool Lead:    \\
 Contact: andrewfurst@ucsb.edu      \\
 ====Safety Concern====
-  * Lab coat and gloves must me used when handling resin
+  * Safety glasses or a face shield must be warn at all time when operating the saw
-  * Anything with uncured resin must be transported within a container to avoid spilling
+  * Hearing protection is recommended while operating the saw and for users of adjoining lab
+  * Only cut one workpiece at a time
+  * Be sure workpiece is properly secured
+  * Hands should be kept free and away from the blade at all times
+  * Do not attempt to clear workpiece until blade guide has returned to its original position and the blade has stopped spinning
+====Approved Materials====
+  * Wood
+  * Plastic
+  * Aluminum
+  * Brass
+  * Copper
+  * Fiber cement panels
 ====Safe Operation Procedures Review====
-  - Check resin cartridge and tank, make sure build material matches and is desired material.
+  - Hook up saw power through Festool dust collector and set the collector to "auto"
-  - If resin is not desired material, disconnect wiper at build tank, remove build plate by sliding towards front of fume hood. Remove cartridge, cap valve on bottom and close valve on top of cartridge. Replace build tank, wiper, and cartridge with desired material.
+  - Using the knob on the right overarm support and the two levers on the fence set the angles on the blade and workpiece
-  - Launch Preform on Ultimaker computer
+  - Using clamps secure the workpiece square against the fence
-  - Import desired STL
+  - If cut necessitates the use of the sliding saw head loosen the knob located above the right overarm
-  - Select "one click print" in the top left corner menu, change position, orientation, resolution and support as desired (note: that Preform will report on print ability of model, changing part rotation can affect print ability.
+  - Depress both the thumb safety and the trigger to start the saw and dust collector
-  - Select print (orange button) from top left menu
+  - Once the blade has reached speed extend the saw to its maximum over arm extension before lowering the blade into the cut
-  - Select desired printer
+  - Once in the cut push the blade into the workpiece until cut is complete
-  - Press button on Formlabs printer to start print
+  - Remove the blade from the cut before releasing the trigger
+  - Allow the saw to come to a complete stop before reaching to clear workpiece
-====Post Processing====
-  - Excess resin should be removed from the build tray and part with IPA over a waste container.
-  - Place build tray and part in the Form Wash for 20 to 30 minuets (part can be placed individually within basket if necessary
-  - Allow 30 minuets for IPA to evaporate before placing part in Form Cure
-  - Set Form Cure time and temperature based on resin type, place part within form cure, wait for time to elapse
 ====Maintenance====
-  * Switching resin types
+**Switching Blades**
-    * Close breather valve on resin cartridge
+Unplug the saw and unhook any vacuum attachment
-    * Remove the resin cartridge by pulling straight up on the handle behind the form labs printers
+  - Loosen the plastic protective guide blocking the saw arbor screw (3mm)
-    * Cap the cartridge valve using the included orange tap and cap
+  - lock the saw arbor in position by rotating the green knob on the head clockwise
-    * Remove the wiper by pulling straight out towards the front of the fume hood.
+  - Using a 6mm hex wrench loosen the saw arbor. KEEP IN MIND THIS IS A LEFT HAND THREAD
-    * Pull the resin tray out of the printer by pulling firmly straight out toward you
+  - Squeeze the trigger to release the blade shield and remove the retaining bolt and assembly along with the blade
-    * Lift the wiper and resin tray out simultaneously, and carefully place on resin shelf within fume hood.
+  - Replace the blade insuring the teeth will cut as the blade rotates clockwise
-    * Cover resin tray with black plastic cover and label
+  - Retighten the retaining bolt and assembly keeping in mind that this is a left hand thread
-    * Replace resin tray with clean or desired resin tank. Push tank and wiper firmly back toward the Form 2 until it clicks into place
+  - Reposition the plastic protective guide and tighten into position
-    * Replace resin cartridge and open valve