Tally Ho Capstan Project: Mounting the Chain Gypsy and Bronze Drive Gear
TLDRIn this detailed video, Keith Rucker from vintagemachinery.org shares his progress on the Tally Ho Capstan Project. The focus is on mounting the chain Gypsy and the bronze drive gear onto the capstan drum. Keith meticulously prepares the parts, using Loctite products for a secure fit. He sands and blasts the surfaces to ensure a proper bond with the bedding compound and lock-tight material. After thorough cleaning, he applies the Loctite products, assembles the parts, and uses a reamer to ensure a precise fit. The video concludes with the successful mounting of the gear and Gypsy, and the temporary attachment of the adapter flange, with the promise of further assembly in upcoming videos. Keith's careful approach and adherence to engineering instructions make for a fascinating watch for those interested in machinery restoration.
Takeaways
- 🔩 The project involves mounting a stainless steel chain Gypsy and a bronze gear on a capstan drum for a vintage machinery restoration.
- 📐 Prior to assembly, the holes for the bolts were drilled and tapped to hold the chain Gypsy in place.
- 💣 Surface preparation includes sandblasting the mating surfaces to create a rough texture for better adhesion of the Loctite products.
- 🧼 A two-step cleaning process is used involving a degreaser and a Loctite cleaner to ensure a clean surface for the application of Loctite products.
- 📦 Two Loctite products are used: a bedding compound (EA 3471 steel putty) for filling irregularities and a retaining compound (Loctite 63) for the gear's pin locations.
- 🔨 The assembly process requires aligning the parts and securing them with bolts, followed by applying the Loctite compounds.
- 🕹️ The bronze gear is positioned using C-clamps temporarily before being permanently secured with pins.
- 🔩 Pins are used to prevent the bronze gear from twisting within the casting, placed according to specific guidelines to avoid weakening the gear teeth.
- 📊 The pins are laid out with precise measurements to ensure they are not too close to the root of the gear teeth, using calipers and a compass for accurate positioning.
- 🛠️ After drilling and reaming the holes for the pins, they are deburred and fitted with a press fit, using Loctite 603 retaining compound to secure them.
- ⚙️ The final step involves mounting an adapter flange onto the base with the use of bedding compound to ensure a tight seal.
Q & A
What is the main project Keith Rucker is working on in the video?
-Keith Rucker is working on the Tally Ho Capstan Project, specifically focusing on mounting the chain Gypsy and the bronze drive gear.
What materials are used to ensure the chain Gypsy and the bronze drive gear are securely held in place?
-Loctite products are used, including a bedding compound and a green lock type material, to hold the components together in an oily and greasy setting.
How does Keith prepare the surfaces for the application of Loctite products?
-Keith prepares the surfaces by sandblasting them to create a textured surface that the Loctite products can better adhere to. After sandblasting, he thoroughly cleans the parts with a degreaser and a Loctite cleaner.
What is the purpose of using a bedding compound on the cast iron piece?
-The bedding compound is used to fill in irregularities on the cast iron piece, ensuring a 100% contact surface when the components are clamped together.
How does Keith ensure proper alignment when assembling the chain Gypsy and the bronze drive gear?
-Keith uses bolts to temporarily hold the components in place and lines up the holes. He also uses a hammer to ensure a snug fit and checks the alignment before proceeding with the permanent installation.
What is the role of the bronze washers in the assembly process?
-The bronze washers are placed behind the bolts to ensure a proper fit and to distribute the pressure evenly when the bolts are tightened.
How does Keith approach the cleaning process after sandblasting the parts?
-Keith wipes down the parts to remove sandblasting dust, then uses a degreaser to remove any oil or residue, followed by a Loctite cleaner to prepare the surfaces for the application of Loctite products.
What is the purpose of using pins in the final assembly of the bronze gear?
-The pins are used to secure the bronze gear into the casting and prevent it from twisting or moving within the assembly.
How does Keith ensure the correct spacing for the pins when drilling holes for them?
-Keith uses calipers to mark the distance from the root of the gear teeth and lays out the holes using a compass and a scribe to ensure even spacing.
What is the significance of the adapter flange in the assembly?
-The adapter flange is mounted onto the base to connect with other components that will be sent from the UK, completing the assembly of the capstan project.
What is the next step in the Tally Ho Capstan Project after the video's events?
-The next steps include drilling and inserting pins for the dogs, machining and painting the new cap, and assembling the final components once the parts from the UK arrive.
Outlines
🔧 Preparing Parts for Assembly with Loctite Products
Keith Rucker introduces the task of mounting a stainless steel chain Gypsy and a bronze gear onto a cap stand project. He explains the process of preparing the parts for assembly using Loctite products, specifically a bedding compound and a lock type material, to ensure a secure fit. The surfaces of the cast iron piece and the gear are to be sandblasted to provide a better grip for the Loctite products, followed by thorough cleaning with a degreaser and Loctite cleaner.
🛠️ Sandblasting and Cleaning the Mating Surfaces
The video segment details the sandblasting process to create a textured surface on the mating areas of the parts. Keith emphasizes the importance of cleaning the sandblasted parts to remove any dust or oil. He uses a degreaser named Black Max and then a Loctite cleaner to prepare the surfaces for the application of Loctite products. The bedding material, EA 3471 steel putty epoxy resin, is mixed according to the instructions for application.
⚙️ Assembling the Chain Gypsy and Gear
Keith proceeds with the assembly of the chain Gypsy and the gear onto the cap stand. He uses a green Loctite on the center hub and aligns the parts before securing them with bolts. The process involves reaming the holes for precise contact and applying Loctite 603 retaining compound to hold the components in place. The assembly is clamped and left to set up before moving on to the next steps.
📐 Marking and Drilling for Gear Pin Installation
The next step involves marking and drilling holes for pins that will secure the bronze gear in place. Keith uses calipers and a Sharpie to mark the locations based on the radius and specifications from the blueprints. He ensures the holes are placed strategically to avoid weakening the gear teeth. After marking, he drills and reams the holes to the exact size for the pins, finishing the holes with a deburring process.
🔨 Installing Pins and Applying Retaining Compound
Keith demonstrates how to install the pins into the drilled holes after applying Loctite 603 retaining compound. He freezes the pins to shrink them slightly, which aids in the press fit process. The pins are then inserted and hammered into place, ensuring they are flush with the top surface of the gear. Once all pins are installed, the gear is securely pinned in place.
💣 Mounting the Adapter Flange and Finalizing Assembly
The final part of the video shows Keith mounting the adapter flange onto the base of the cap stand. He uses a bedding compound to ensure a tight fit and secures it with bolts, noting that these are temporary and will be replaced with custom-made bolts upon their arrival. The assembly is cleaned up, and Keith expresses his satisfaction with the progress of the cap stand project, adhering to the design instructions provided by engineer Dave Webster. He also mentions upcoming tasks, including drilling and pinning for the cap dogs and machining the new cap.
Mindmap
Keywords
💡Tally Ho Capstan Project
💡Chain Gypsy
💡Bronze Drive Gear
💡Loctite Products
💡Sandblasting
💡Drilling and Reaming
💡Pinning
💡Bedding Compound
💡Adapter Flange
💡Press Fit
💡Capstan Drum
Highlights
The Tally Ho Capstan Project involves mounting a stainless steel chain Gypsy and a bronze drive gear on a capstan.
The chain Gypsy and windless drum are integral components of the capstan system.
Preparation includes drilling, tapping holes for bolts, and using Loctite products for secure mounting.
Bedding compound and a lock type material are utilized to ensure a tight fit and prevent movement.
Surfaces are prepared using sandblasting to create a rough texture for better material adhesion.
A thorough cleaning process is essential before applying Loctite products to ensure proper bonding.
EA 3471 steel putty epoxy resin is mixed and applied to fill voids and ensure solid contact.
The use of green Loctite on the center hub aids in alignment and secures the parts together.
Bolts are temporarily installed to check alignment before the final assembly.
Drilling and reaming are performed to prepare pin locations for the gear.
Pins are placed no closer than a quarter of an inch to the root of the gear teeth for structural integrity.
A compass and calipers are used to accurately mark and drill the pin holes.
Deburring is done to finish off the holes and prepare them for the press fit of the pins.
Loctite 603 retaining compound is applied to secure the pins in place.
The adapter flange is mounted and bedded with compound for a tight connection.
Custom-made bolts from the UK will be used for the final assembly of the flange.
The capstan project requires further machining and assembly, including the addition of pins for the dogs.
A new cap has been cast and will undergo machining and painting before final assembly.
The project is progressing well, with a focus on precision and adherence to engineering instructions.