Lathe Tailstock Handwheel (fits SIP Lathe 01360 & ?Draper WTL1100, ?Scheppach DMS1100, DMS900)

prusaprinters

<p>My friend broke the original handwheel for his SIP wood lathe and was distressed to discover from SIP that the part was unavailable. 3d printer to the rescue...</p> <p>I took measurements from the original wheel and made modifications to the shape to improve printability, largely to remove the need for supports (because they're difficult to remove from a print in PETG!). A small support is still needed for the hex nut rebate in the handwheel for the fixing bolt for the handle. I wrangled this with the new paint-on support feature in PrusaSlicer 2.3.</p> <p>There are two versions of the wheel, one that needs an insert ring from the original wheel (HandWheelInsert.stl) (read on in Post-printing about a problem with this...), and one that just fits on the tailstock shaft and fastens with a M5 x 12mm grub screw (HandWheelNoInsert.stl) (this version should work but is untested, having been drawn after discovery and solving of the insert ring and it's problem)</p> <p>This handwheel will probably fit other brands of wood lathe that are similar in design to the SIP (for example Draper 60990 (WTL1100) or 63938 (WTL95), Scheppach DMS1100 or DMS900 or Lata 5.0). The No Insert version could be drilled out to suit larger tailstock spindles.</p> <h3>Print Settings</h3> <p><strong>Printer Brand:</strong></p> <p>Anycubic</p> <p class="detail-setting printer"><strong>Printer: </strong> <div><p>Kossel</p></div> <p><strong>Rafts:</strong></p> <p>No</p> <p class="detail-setting supports"><strong>Supports: </strong> <div><p>Yes</p></div> <p><strong>Resolution:</strong></p> <p>0.2</p> <p class="detail-setting infill"><strong>Infill: </strong> <div><p>20%</p></div> <p><strong>Filament:</strong> [E3D] {Ooznest} [EDGE] {PETG} [Crystal Dark] {Midnight Black}</p> <p><br/> <p class="detail-setting notes"><strong>Notes: </strong></p> </p><div><p>I printed the handwheel at 0.2mm layer height, with 8 perimeters (vertical shells) and 6 horizontal shells at the top &amp; at the bottom. I used 10% gyroid infill for the outer wheel and spokes, but for the hub (using a modifier), increased perimeters to 20 and infill to 25%. This prints the hub as solid.</p> I printed the handle at 0.2mm layer height, with 8 perimeters and 4 horizontal shells at the top and at the bottom and, for good measure (!) 100% infill. I used a 6mm brim to print the handle narrow end down to achieve a good surface at the end of the bolt counterbore (to give smooth rotation of the handle). The brim may not be necessary given the good adherence of PETG to build plates. <p>The bolt hole for the handle in the handwheel needs support, but nothing else. I used a brim to print the handle narrow side down.</p> <p>Printed as above and assembled, this is very robust and weighs 210g.</p> <h3>Post-Printing</h3> <p>My friend didn't tell me about an insert ring that fit inside the original handwheel. I did know the required shape because he supplied me with the original handwheel, so I designed the hub of the replacement wheel to the required shape. The problem was that the original wheel was fitted over the insert, which was then fitted to the tailstock spindle, and a large grub screw (~M8 x 15mm) screwed through the hub and the ring into a hole in the spindle. The large grub screw is necessary to fix the ring on the shaft and prevent it spinning, but it protrudes from the ring and prevents the new wheel being fitted over it. So - fit the grub screw head-first into the ring to hold it in place while you grind or file away the grub screw to shorten it to the point where it still holds the ring on the shaft but does not protrude beyond the ring. You may also need to gently file off the top of the screw once its fitted in place just to smooth it to the ring. The printed handwheel then just fits on top (we encouraged it to fit with a rubber mallet!) and is held in place with its grub screw.</p> <p>You'll need to remove the support material from the handle bolt hole in the handwheel and tidy it, and the bolt hole through the handle, with a suitable drill bit (5mm, but more probably 5.5mm).</p> <p>Run a nut all the way along the 50mm bolt for the handle, and tighten to the bolt head as a spacer. Feed the bolt through the handle and screw into a fixing nut in the handwheel nut recess. A small screwdriver inserted between a flat of the hex bolt head and the inside of the handle will hold the bolt tightly while you tighten the bolt into the fixing nut to give smooth rotation of the handle.</p> </div></p></p></p> Category: Tools