Rapid Advance UniSlide Assemblies

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1 (800) 642-6446 or 1 (585) 657-6151 (in NYS)


	Model D, DE and DM

	Model GE and GM

	Model H1, H20, HE, HM


	Spec it, Price it

	With coarse leadscrew

	Load Capacity

Rapid Advance feature allows you to temporarily disengage the drive screw.

Problem 1: you need long travel and you don't have the time and/or energy to do a lot of cranking. Choose from 4 solutions:

Choose a Rapid Advance UniSlide model. Read on
Choose Rapid Advance BiSlide
Choose regular UniSlide with a coarse lead screw
Motorize it

Problem 2: you need relatively long travel at a very slow, constant speed but want to quickly return to START

Choose a motor driven Rapid Advance BiSlide model

Photo 1

Save your time and energy in repositioning with our unique Rapid Advance Feature. This feature is ideal for

long travel UniSlides,
medium travel units with fine pitch screws
any units that are frequently moved.

How they work: Rapid Advance models use a clutch-like design to uncouple the slider from the drive mechanism. You quickly push the slider, by hand, where you want it. Then, fine tune your position after re-engaging the drive screw.

Select a UniSlide Series to see Rapid Advance features:
1.5" wide Series A15
2.5" wide Series A25
4" wide Series A40
6" wide Series A60
The Rapid Advance feature is not available in B90 Series - choose Rapid Advance BiSlide

DETAILS
There are three designs of Rapid Advance: Models D, G and Model H

Model D	Design
Mechanism	Mandrel (steel rod) with clamp
Looks like	Photo 2	Operation: Knob turns screw which moves mandrel back-and-forth for 0.56" fine motion control.
	Pros	Cons
	-Less expensive than H design -Finer FINE Adjust (40 turns per inch) -Tolerates debris better than H design	Occasionally have to adjust relative position of screw in mandrel
Variations:	With Scale and Vernier: Models DE and DM
Measured Travel	Photo 3	Measures position to 0.001" or 0.05 mm

Model G	Design Tell me more about these models
Mechanism	Same as D:Mandrel (steel rod) with clamp
Looks like..	Photo 4	Operation: Turn Micrometer for fine adjustment over 1" or 25 mm segment of a variable range of travel.
	Pros	Cons
	-Measure travel to 0.001" or 0.01mm -Moveable zero or home reference point	Occasionally have to adjust relative position of Mic head

Model H	Lead screw with pinions (not visible)
Looks like...	Photo 5	Operation: Brass pinions rotate as you push the slider. Clamp pressure locks pinions in place for lead screw control.
	Pros	Cons
	-Can move full length of travel by just turning hand wheel.	More sensitive to debris Costs more than D style
Variations	with Scale and Vernier: Models HE and HM
Looks like...	photo 6	Measure position to 0.001" or 0.05 mm

Load Capacity

Because we have replaced the normal, threaded Delrin drive nut, vertical load capacities are reduced from normal series load capacities.

Series	Horizontal	Vertical
A15	10 lbs.	2 lbs.
A25	25 lbs	2 lbs.
A40	50 lbs.	2 lbs.
A60	50 lbs	2 lbs.

Rapid Advance Modification

Photo 7 above

Long travel Series A15 Rapid Advance model with measured travel.
Customer requested a Rapid Advance Model D. They wanted to measure the travel but only needed a resolution of 1 mm. The solution is a metric lithographed scale graduated in 1 mm increments added to the standard Model D. Note the optional extra length slider with hash mark.

Another idea: Screw Drive UniSlide with a coarse lead screw

Photo 8

When you spec a 2.5 turns per inch lead screw in the standard Screw Drive type UniSlide, you can push the slider along for rapid translation (movement). Watch this video:

Advantages of 2.5 turns screw:
-Fast travel
-Less expensive, complex and higher load capacity than Rapid Advance UniSlides

Disadvantages:
-reduced sensitivity for tiny increments of motion
-2.5 and 5 pitch are not self-locking. Will fall if in a vertical position or move if thrust load is in direction of travel. We highly recommend use of locking screw to hold position.

Choose a manual UniSlide

Another choice: the Rapid Advance BiSlide Assembly

Rapid Advance BiSlide
Photo 9

12 sec. video demo. Controls in lower left corner

Available as Manual or Motor Driven assembly

Load Capacity: Horizontal: 150 lbs
Vertical: 3 lbs (for safety to prevent injury due to sudden drops) 15 lbs absolute maximum

Price: Std. +$150 CONFIGURE A BISLIDE

Nut Matl: UHMW
Lever Matl: 303 SS
Knob Matl: Black Duroplast (fiber reinforced Bakelite) with spring steel insert

Lever Orientation: Normally Right (looking from Knob/Motor end) but Left on Motorized
Lever Engage/Disengage Force: 2.5 lbs Typ
Lever Engage/Disengage Angle: 13 deg
Lever Engage/Disengage Distance at Knob: 0.95"
Knob distance from BiSlide (Base): 1.7"
Design Life: 100K cycles

Lubricant: BiSlide BL-1 Only or None
Environmental: Same as Std BiSlide

Backlash (M01): 0.0001" (2.5 microns) Typ.

Extra Carriage:Part # BCR-M01 +$150 over BCN-xxx

Choose to Motorize the Stage motor driven Stages
Photo 10

Advantages:
- Fast travel, constant speed
- Automated. Can be programmed to do a wide variety of tasks

Disadvantages:
- Costs more
- Requires electricity
- Is a more complex solution

Go to: Examples of motorized stages or Introduction to motorized stages