TwinSpin™
Diamond Disc Grinder
TwinSpin™
Diamond Disc Grinder
Archived User Guide for machines before 5-2001
Thank you for buying this Inland product. This booklet contains instructions for the set up and use of your TwinSpin™ as a disc grinder. To set up your machine for standard grinding, please use the instructions for the ‘Impulse™ and Aero™ Diamond Glass Grinder’. The TwinSpin™ would set up the same as an Impulse™. If you want to set up for disc grinding, follow the instructions below. Either way, please read all the instructions to understand the correct components, set up, and use of this machine.
Safety
It is extremely important to wear proper eye protection when using any glass grinder. We highly recommend that you wear safety goggles rather than safety glasses. You can also use the Inland FaceShield™ or MagnaShield™ in conjunction with proper eye wear for added protection. A shield alone is not adequate eye protection.
DO NOT wear loose clothing or any accessories (long necklaces, bracelets, shirts with long fringes, and similar) that might get caught by the grinder head while using any Inland grinder.
Use only in a properly grounded and tested outlet. Never override the grounding system or modify the plug.
Set up your machine on a sturdy, level work surface that is water tolerant and a comfortable height to work on.
Parts
Check and verify that you have all the parts listed before
beginning.
Disc Grinding Setup
| Part | Name | Quantity |
Color |
| (A) | Grinder Body | 1 | Black/White |
| (C) | LockDown Screw & Cover (set) | 2 | White |
| (K) | Disc Reservoir & Work Surface | 1 | White |
| (L) | 5" Diamond Disc | 1 | Silver |
| (M) | Disc Coolant Feed Sponge | 1 | Yellow |
| (N) | Disc Cover w/ Drip Well | 1 | White |
| (O) | Mini Work Surface | 1 | White |
| (P) | Wire Coolant Reservoir Stand | 1 | White |
| (Q) | Large Coolant Reservoir | 1 | White |
| (R) | Flow Adjustment Screw | 1 | White |
| (S) | Length of Plastic Drain Tube | 1 | Clear |
Set
Up TwinSpin™ as a Disc Grinder
Set up your TwinSpin™ following the diagram. If your machine is set up for grinding you will need to remove all bits, the white grid surface (E), and the coolant reservoir tray (B).
1) Attach one end of the plastic drain tube (S) onto the drain stem located on the underside of the disc reservoir (K). NOTE: Hold the end under warm water first to make it easier to fit over the drain stem. You will place the other end in a tray to collect used coolant after you complete the set up.
2) Place the disc wheel reservoir (K) onto the grinder body (A) and lock into place using the two lock down pins (C). Push the white covers in place over the pins.
3) Install the disc (L) onto the motor shaft by loosening the set screw with the long Allen wrench. Place the disc onto the shaft so that the set screw aligns with the flat side of the motor shaft and the disc is just above the reservoir surface. Tighten the wheel in place using the Allen wrench. NOTE: Always make sure to tighten any bit or disc against the flat side of the shaft.
4) Put the disc cover (N) in place on the disc reservoir (K)
5) Assemble the coolant reservoir by attaching one end of the plastic tubing to the drain stem on the underside of the reservoir. Feed the other end through the tunnel behind the flow adjustment screw. Insert the reservoir flow adjustment screw (R) into the brass threading on the front and turn until it just holds in place. Insert the legs of the wire coolant reservoir stand (P) into the two mounting brackets molded into the back of the grinder body (A). Mount the coolant reservoir (Q) by sliding it onto the loop at the top of the coolant reservoir stand (P). Plug the free end of the coolant hose into the hole in the disc cover (N), located near the center of the disc. Make sure that it doesn’t rub on the disc as it turns.
Disc Grinding
You can quickly straight edge grind, thin, miter, and angle
the edge of a piece of glass when disc grinding on the upper surface of the
diamond disc. When disc grinding make sure the disc top is just barely above the
work surface and the coolant feed hose is inserted into the hole in the cover.
1) You will need to fill the reservoir (Q) and adjust the flow rate so that you have a slow yet steady drip of coolant onto the disc while working. Adjust the flow rate by turning the flow adjustment screw (R) in and out. If a white paste develops anytime while grinding, increase the flow of coolant onto the disc.
2) Turn on the machine and start grinding with a light, steady pressure. Slide the glass across the surface of the disc. For larger pieces use a back and forth motion. You can also use the back side of the disc cover (N) as guide to help control the glass as you grind. Never push the glass so hard that you stall the disc.
3) We recommend practicing on some scrap pieces to get a feel for grinding on top of the disc surface.
Outer Edge Grinding
You
can use the outer edge of the 5" disc to shape and grind glass just as you
would use a standard grinding bit. Grinding with the outer edge is a very fast
way to remove material. To grind using the outer disc edge:
1) Raise the disc at least 1/8" above the work surface. Use the Allen wrench to loosen the set screw and then tighten the disc to the flat side of the motor shaft.
2) Remove the disc cover (N). Place a single wet sponge (M) in the right side slot of the coolant reservoir (K) so that it just touches the disc. If the sponge is dry or wedged against the disc, it won’t grind properly.
3) Fill the right side reservoir well to a maximum depth of 1/8". NOTE: Overfilling will only produce excessive overspray. Replace the disc cover (N)
4) You can help reduce overspray by installing a wiper sponge to the left of the disc on the disc work surface (K). In the parts bag is a small metal dowel pin. Insert the pin into the hole located in the disc reservoir work surface (K) near the left hand edge. Put the dampened wiper sponge over the pin so it is held in place by the dowel and just touches the edge of the disc.
5) Turn on the machine and using light pressure at first, feed the glass into the disc. Remember to let the disc spin freely. DO NOT push so hard that you stall the disc. We recommend practicing on scrap pieces first to get a feel for the grinding action.
6) Before returning to disc grinding, remember to remove the wiper sponge and metal dowel pin.
white wire reservoir holder (U) into the two mounting brackets molded into the back of the grinder body (A). Mount the coolant reservoir (S) onto the wire bracket with the coolant flow adjustment screw (T) facing the front of the TwinSpin™. 'Plug' the coolant hose into the hole provided in the white plastic disc cover (N) making sure it doesn't rub on the disc.
Using the MiterMaker™ and CAB™
The
MiterMaker™ Kit contains:
1 - 8" MiterMaker™ bar for grinding 900 and 450 angles
1 - 8" MiterMaker™ bar for grinding 22.50 and 300 /600 angles
2 - Compound Angle Bars or CABs
2 - Brass thumbscrews for mounting the CABs to the MiterMaker™ bars
1 - 5 1/2" yellow sponge that fits under
the MiterMaker™ bar.
1)
To grind a mitered edge, select the appropriate MiterMaker™ bar. For example:
To miter the edges for a simple box, select the bar with the 450 angle.
2) Place the sponge under the bar and then snap it onto the work surface with the angle you want to grind into the glass facing the disc.
3) Turn on the machine and adjust the coolant to drip at a steady, even rate.
4) Place your glass piece against the bar and slowly push it down onto the disc to grind the angle. For longer pieces, use a back and forth motion across the MiterMaker™ bar and disc.
5) Remember to let the diamond do the work. If at any time a white paste develops on the disc, increase the coolant flow.
|
Common MiterMaker™ Bar Uses |
|
| 90° Bar | Straighten pieces, remove flares, safety edge |
| 22.5° Bar | Eight sided boxes, lamps, and other 3-D objects |
| 30° Bar | Six sided boxes, lamps, and other 3-D objects |
| 45° Bar | Four sided boxes, lamps, and other 3-D objects |
Grinding Compound Angles
The
CABs attach to the MiterMaker™ bar and are for grinding compound angles, that
is an angle on an angled piece. There is a right and left bar. They attach by
inserting the pin into the hole along the bottom of the MiterMaker™ bar. This
acts as a pivot point. Then use the thumb screw to attach the slotted arm to the
upper part of the MiterMaker™ bar. (There is a brass insert where the screw
inserts). On top of the MiterMaker™ are angle setting guides scaled in 5°
increments to create angles from 0° to 45°. To grind a compound angle:
1) Attach the CAB bar to the appropriate MiterMaker™ bar, set the CAB angle and lock in place. For example: To grind a flat 8 sided border use the 90° MiterMaker™ bar and set the CAB to 22.5°.
2) Hold the glass flat against the MiterMaker™ bar and the CAB at the same time as you feed it into the disc.
3) Remember to let the diamond do the work. If at any time a white paste develops on the disc, increase the coolant flow.
Using the Mini Work Surface
When disc grinding on your TwinSpin™ you can still use
the 1" grinding head.
1) Install the 1" grinding head on top of the disc and secure to the flat side of the motor shaft.
2) Place the mini work surface (O) over the disc as shown.
3) In your parts bag there is a sponge split part way through. Place this behind the bit so that half touches the bit and the other half sits in the coolant reservoir in the center of the disc cover (N).
4) Fill the reservoir with coolant.
5) Grind as you would normally. When you want to go back to disc grinding simply lift off the mini work surface.
Maintenance
Maintenance is minimal but important to prolonging the life and performance of the machine.
1. Motor bearings are permanently sealed and lubricated.
2. Apply Inland Motor Shaft Lubricant (#50022) to the shaft whenever changing or removing discs or grinding heads. Remove the head if you won’t be using the grinder for more than a month.
3. Tighten grinding head set screws ONLY to the flat side of the motor shaft to prevent scaring the shaft which makes removing the head nearly impossible. Never force a bit onto the shaft and never pry off a bit. If the bit is stuck, contact Inland Customer service for instructions.
4. Remove and clean the reservoir often. Ground glass accumulates in the reservoir and can slow down the disc and hardened residue is difficult to remove.
Service
Questions about your grinder can be answered by calling Inland Customer Service at 1-800-521-8428 Monday through Friday, 9:00am to 5:00pm EST, by visiting the Inland web site at www.inlandcraft.com, or you can e-mail customer service at helpdesk@inlandcraft.com.
Popular Accessories
3-Step!™ Beveler Kit no. 50006:
FineGrit™ Disc no. 40501: For grinding softer materials, delicate glasses, mirror, and when you want a smoother edge.
SuperFine™ Grit Disc no. 40502: For fine edge finishing on very soft glasses, mirror, and when you want a chip free edge.
GrinderStation™ no. 50014:
DiamondCoolant™ no. 50011:
If you have any questions or comments regarding the use of this or any Inland product please call Inland Customer Service at 1-800-521-8428 9 AM to 5 PM EST. or write us at:
(UGTwinSpin/10-2000)
Inland Craft Products, Co.
32052 Edward Dr.
Madison Heights, MI 48071 USA